Shot Peening of Springs
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The articles below are archived in the shotpeener.com LIBRARY compiled and maintained by Jack Champaigne at Electronics Incorporated. A form of the word "spring" appears somewhere in the title or abstract.
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Total articles: 145
TitleYearAuthorSourceAbstract
Shooting at Ceramics 2012 Fraunhofer Institute for Mechanics of Materials IWM The Shot Peener magazine, Vol 26 / Issue 4, Fall 2012 RESEARCH REPORT: In corrosive, high-temperature environments, metals quickly lose their elasticity. Beyond certain temperatures the material fails and its properties are compromi...
SHOT PEENING CONDITIONS AND PROCESSING PROPERTIES FOR SPRING STEEL 2011 I. Sumiyoshi, A. Tange, H. Okada Conf Proc 2011: ICSP-11 South Bend, IN USA (pgs. 55-60) ABSTRACT In recent years weight reduction of suspension springs has been increasingly required from the viewpoints of improvement in fuel efficiency of automobiles and global envi...
Cautionary Tale: Marketing of Extension Springs 2010 Mark Hayes, Institute of Spring Technology The Shot Peener magazine, Vol 24 / Issue 2, Spring 2010 Article was originally published in Springs magazine and is reprinted here with permission by the Spring Manufacturers Institute (www.smihq.org) The best way to market extension s...
Cautionary Tale: Shot Peening Compression Springs 2010 Mark Hayes, Sr. Metallurgist, IST in Sheffield, En The Shot Peener magazine, Vol 24 / Issue 1, Winter 2010 Cautionary Tale: Shot Peening Compression Springs has been reprinted with permission from Springs magazine, April 2009. Shot peening is a process used by the spring industry that ...
Influence Of Shot Peening On Fatigue Strength Of Aluminum-alloy Parts 2008 H. Suzuki, Dr. H. Makino, K. Mizuno, T. Tomita Conf Proc: ICSP-10 Tokyo, Japan 2008 ABSTRACT Considering energy savings and the growing environmental concerns, light weight components are increasingly becoming popular in various fields of engineering applications...
Stress Peening Of Minibloc-springs, The Most Sophisticated Coil Springs 2008 E. M Conf Proc: ICSP-10 Tokyo, Japan 2008 ABSTRACT In this lecture will be presented, that also the most complicated coil spring the Miniblocspring can be stressed peened. As a consequence for every suspension coil spring...
Application Of Ceramic Shot For Peening Of Automotive Suspension Coil Springs 2008 Abadie, Beaudonnet, Dixon, Fader, Fabre, Barrallie Conf Proc: ICSP-10 Tokyo, Japan 2008 ABSTRACT The use of ceramic shot for the improvement of high strength steel endurance is confirmed to enhance coil spring fatigue life by improving the surface condition and provi...
Fine Particle Bombarding Technology And Functional Development Of Metal Surface 2008 Chuji Kagaya, Yoshiro Yamada Conf Proc: ICSP-10 Tokyo, Japan 2008 ABSTRACT: Recent trends toward weight reduction, energy saving, and higher-efficiency of automobiles and aircrafts compared with previous generations mean that structural material...
Shot Peening of Springs-a Case Study 2008 John Cammett The Shot Peener magazine, Vol 22 / Issue 1, Winter 2008 Acknowledgments: The investigation that formed the basis for this article was instigated by the author in cooperation with four organizations that participated in experimental effo...
Shot Peening Techniques for Springs 2007 Kumar Balan The Shot Peener magazine, Vol 21 / Issue 1, Winter 2007 A flat piece of leaf spring has, since the days of the blacksmith, received continued impacts of the hammer long after cooling down in temperature. Though the blacksmith didn't alw...
Shot Peening in Steam Turbines 2005 Ralph Ortolano, Robert Kleppe, Russell Chetwynd Turbine Rescue Shot peening has been used for centuries to improve the fatigue life in many metals, and in modern applications (1920’s), began with shot peening automobile engine valve springs....
Industry News - Guyson Corporation 2005 Shot Peening Staff The Shot Peener magazine, Vol 19 / Issue 4, Fall 2005 Blast System Tumbles Parts Gently Saratoga Springs, New York. Guyson Corporation has expanded its line-up of pneumatic tumble-blast machinery with the Model T-50, a rotary basket ...
Ceramic Shot Enhancement of High Strength Steel Endurance Application to Springs and Gears 2005 F-X Abadie, L Barralier, S Fleury Conf Proc: ICSP-9 (pg 48-53) ABSTRACT This paper will briefly recall some previous research works on ceramic shot, expose latest complementary works, and show their translation into effective industrial appli...
Air Blasting: Sometimes It's Buy One, Get One Free! 2005 Herb Tobben, Technical Services Department The Shot Peener magazine, Vol 19 / Issue 1, Winter 2005 Clemco Industries Corp. Those of you who are regular readers of my column know that I believe there to be an infinite number of applications for air blasting and shot peening. Of ...
How the right finish was the best start 2004 Shot Peening Staff The Shot Peener magazine, Vol 18 / Issue 1, Winter 2004 This is a story about a group of young and talented bicycle frame builders. Idealists they were, this group that wanted to form a democratically-controlled and employee-owned compa...
Institute of Spring Technology - Lasers Spring into Action 2004 Industry News The Shot Peener magazine, Vol 18 / Issue 2, Spring 2004 United Kingdom. A project to be carried out by TWI and Institute of Spring Technology (IST) will develop advanced spring manufacturing processes based on the use of laser technolog...
Shot Peening and Spring Life - All Leaves are Critical 2004 Dayton Parts, LLC The Shot Peener magazine, Vol 18 / Issue 4, Fall 2004 This bulletin was printed with permission of Dayton Parts. OEM Quality For many years, every major OEM manufacturer has specified shot peening of all leaves on their passenger ca...
Recent Progress with Nitrided Valve Springs for Automobile Internal Combustion Engines 2003 Yamada, Teratoko, Kariya and Saitoh SAE: World Congress, March 3-6, 2003, 2003-01-1312 ABSTRACT The gas-nitriding characteristics of valve springs made from three different grades of oil-tempered wires were investigated as a preliminary study, and the springs made f...
Mecshot Shot Blasting - Shot Peening Processing and Machines 2002 News Release The Shot Peener magazine, Vol 16 / Issue 1, Spring 2002 Jodhpur, India - Shot peening is the mechanical operation of introducing residual compressive surface stress on mechanical parts which are subjected to dynamic conditions like turb...
Guyson Corporation - Return-to-Operator Blast System 2002 News Releases The Shot Peener magazine, Vol 16 / Issue 1, Spring 2002 Saratoga Springs, NY - Guyson Corporation has introduced its updated Model TRR900 reciprocating conveyor blast system. The machine is designed to meet the special requirements of l...
Shot Peening to Enhance Fatigue Strength of TIMETAL LCB for Application as Suspension Springs 2002 Kiese, Zhang, Schauerte and Wagner Conf Proc: ICSP-8 Sept. 16-20, 2002 Garmisch-Partenkirchen, Germany Authors Jurgen Kiese 1), Jiulai Zhang 2), Oliver Schauerte 1) and Lothar Wagner 2) 1) Volkswagen AG, Wolfsburg, Germany 2) Chair of Physical Metallurgy and Materials Technology,...
Searching for the Most Suitable Condition and the Suggestion of Each Application in Ultrasonic Shot Peening 2002 Hattori, Watanabe, Handa, Duchazeaubeneix Conf Proc: ICSP-8 Sept. 16-20, 2002 Garmisch-Partenkirchen, Germany Authors Kaneshi Hattori, Yoshihiro Watanabe, Mitsuru Handa, Tokyo Seiko, Japan, Jean-Michel Duchazeaibeneix Sonats, France Abstract Ultrasonic shot peening, named Stressonic, ...
Study on Methodology to Increase Fatigue Limit of Gears 2002 Ando (1), Matsui (2) and Eto (2) Conf Proc: ICSP-8 Sept. 16-20, 2002 Garmisch-Partenkirchen, Germany Authors: Kotoji Ando (1), Katsuyuki Matsui (2) and Hirohito Eto (2) (1) Yokohama National University, Yokohama-shi, Japan (2) Isuzu Motors Ltd., Kawasaki-shi, Japan Introducti...
Shot Peening Process And Its Applications 2001 P. S. Puranik v ICSP & BC - 2 Today when a part is not able to withstand the stresses that it is required to, a lot of trial and error effort is put over the part. Its material may be changed, the part may be s...
The 2000 Shot Peening and Blast Cleaning Workshop 2001 Shot Peening Staff ABC, Vol 6/ No 1, Winter 2001 Colorado Springs, CO, was the site of our 10th annual shot peening and blast cleaning workshop and trade show. We welcomed 167 attendees from 16 countries. Thirteen industry lead...
Improvement of Fatigue Strength of Nitrided High-Strength Valve Springs by Application of a New Super Fine Shot-Peening Techn 2001 Yamada, Teratoko, Saitoh, Sasada, Yanagihara SAE: 2001 World Congress, Detroit, MI, March 5-8, 2001, 2001-01-0834 ABSTRACT The peening of fine steel beads with diameters less than 80um (referred to as SS Treatment in this paper) on the surface of nitrided and then conventionally shot-peened (...
The Little Book on Shot Peening 2001 Jack Champaigne Electronics Inc, The Shot Peener Shot peening is a special metal surface treatment intended to extend the fatigue life of most metals. The impact of small spherical media called shot creates a dent in the surface...
High-Strength Valve Spring and It's Manufacturing Method 2001 T Aoki; M Wakita; T Sakakibara, all of (JP) US Patent 6,224,686 B1 The high-strength valve spring uses, as the material, a steel containing 0.5-0.8% C, 1.2-2.5 wt % Si, 0.4-0.8 wt % Mn, 0.7-1.0 wt % Cr, balance Fe and inevitable impurities, where,...
Improved Fatigue Strength of Valve Springs and Sheet Springs by Applying a New Surface Treatment Technology 2001 Yamada, Saitoh, Ishida, Uzumaki, Suzuki, Teratoko Suncall Corporation Authors: Yoshire Yamada, Tadashi Saitoh, Masaaki Ishida, Kazuhiro Uzumake, Hiroshi Suzuki and Keiichiro Teratoko of the Suncall Corporation The peening of fine steel beads with ...
2000 Shot Peening and Blast Cleaning Workshop - October 24,25,26 in Colorado Springs, CO 2000 Shot Peening Staff ABC, Vol 5/ No 3, Summer 2000 Our 10th Annual Workshop It's one of a kind and it only happens once a year. Electronics Incorporated is a pioneer in shot peening and blast cleaning training - since our first...
The 2000 Shot Peening and Blast Cleaning Workshop 2000 Shot Peening Staff The Shot Peener magazine, Vol 14 / Issue 4, Winter 2000 Colorado Springs, Colorado Oct. 24 - 26 Colorado Springs, Colorado was the site of our 10th annual shot peening and blast cleaning workshop and trade show. We welcomed 167 attende...
USF Surface Preparation Group is Total Solution for Leading Manufacturer 2000 News Releases The Shot Peener magazine, Vol 14 / Issue 4, Winter 2000 Recognized as North America's premier spring manufacturer, Associated Spring has always conducted business by a simple creed, "do it right the first time." The oldest of three comp...
Method for Producing Helical Springs 2000 J Wienand; G Mier, both of Germany US Patent 6,022,427 A method of manufacturing helical springs from steel wire. The springs' skin is thermomechanically hardened by shot peening the unstressed springs followed by thermally destressing...
Development of High-Strength Suspension Coil Springs in which Corrosion Fatigue Strength is Important 2000 Nakano Sakakibara Wakita Sugimoto Society of Automotive Engineers, Inc. p.1-7 For the weight reduction of suspension coil springs for automobiles, high-strength steel has been developed. But, in general, strength and corrosion fatigue are contradictory. Then...
The Effect of Warm Shot Peening on the Fatigue Strength of Springs 2000 A. Tange, H. Koyama, H. Tsuji SPRINGS, Spring 2000, p58-63 This paper was presented at the 1999 Spring Conference of the Japan Society for Spring Research (JSSR). It is translated from Japanese to English for publication in Springs by Miki...
The Critical Operations of Shot Peening. 2000 Caterpillar Inc. CAT 1E 2054 Spec Caterpillar Inc This specification shall be applied to highly stressed parts, such as axle shafts, connecting rods, springs, etc., on which shot peening is required for increased fatigue resistanc...
Thermomechanical Surface Hardening Raises Spring Life 1999 News Release The Shot Peener magazine, Vol 13/Issue 2, Summer 1999 A thermomechanical surface hardening process that is said to provide an 80% increase in the durability of leaf springs over coventional stress peened components, has been developed...
Effect of Shot Peening on Fatigue Strength of Phosphor Bronze C5191 1999 Katsuji Tosha, Yoshinori Ueno, Kisuke Iida Conf Proc: ICSP-7 (pg 344-349) This paper deals with the effect of shot peening on the fatigue strength of phosphor bronze, which is widely used for springs of the electric appliances. Shot peening is performed...
Residual Stresses in Plastically Deformed Wires 1998 Fryderyk Knap Wire Journal International Publication Wire and wire-based products comprise the majority in the group of plastically deformed steel products. Often those products work at high external loads. Ropes and cords in lifti...
Arrangement for Ball Shot Peening Helical Compression Springs 1997 Vondracek, Hans US Patent 5,591,066 A shotpeening machine for helical compression springs. It comprises a spring-peening chamber accommodating shot impelling rotors, mechanisms for accommodating and tensioning the s...
Recent Developments in Shot Peening Machine 1996 Hiroji Aoki & Hitoshi Takeda The Shot Peener magazine, Vol 10/Issue 2, June 1996 Reprinted from the Proceedings of ICSP4 ABSTRACT The shot peening process has been increasingly employed as one means of improving the endurance reliability of automotive parts. ...
Computerised Correlation of Results of Shot Peening Tests. 1996 Lavit Rawtani Conf: (Bophal) Intl Conf on Shot Peening and Blast Cleaning (Book:Sharma/Ra The major cause of failure of machine components subjected to alternating stresses and vibration, is fatigue. The fatigue life is known to improve significantly by shot peening, t...
An Overview of Shot - Peening 1996 A. Niku-Lari Conf: (Bophal) Intl Conf on Shot Peening and Blast Cleaning (Book:Sharma/Ra Controlled shot-peening is an operation which is used largely in the manufacture of mechanical parts. It should not be confused with sand blasting used in cleaning or descaling pa...
Process Controls the Key to Reliability of Shot Peening 1995 J. Mogul and C.P. Diepart Metal Improvement Co. Shot peening was recognized over a half century ago as a very economical way to extend the service life of automotive engine valve springs. Today "controlled shot peening" has dev...
Some Aspects of Stress Peening of Coil Springs for Vehicle Suspensions 1993 Eckehard Muller Conf Proc: ICSP-5, (p.341-348) Stress peening of coil springs is getting more and more popular, because it causes better durability or weight reduction. In this paper after some fundamentals it is presented spe...
Guyson Tumbleblast Systems Offer High-Speed Batch Processing 1992 News Release The Shot Peener magazine, Vol 5 / Issue 4, Winter 1992 Saratoga Springs, NY - Guyson Corporation's advanced tumbleblast systems make it possible for manufacturers to quickly and efficiently deflash, deburr, descale or surface-condition...
High-Strength Coil Spring and Method of Producing 1992 S Yamamoto; T Shibata Itami Japan US Patent 5,152,851 The present invention relates to a high-strength coil spring useful for an engine and other high-strength springs requiring a high fatigue-resistance and a method of producing the ...
The Effects of Surface Treatment on Torsonal Fatigue Failure in Recoil Springs 1992 R.R.Fujczak, J.A. Kapp, C.J. Nolan Tech Report ARCCB-TR-92045, US Army R/D Engr Ctr. Large recoil springs are used in applications that require huge stored energy. These springs are usually made from very high strength materials in very large section sizes for spr...
An Unsuitable Residual Stress State In Train Springs Originated By Shot Peening 1991 Artaraz, F. and Beitia, S. Sanchez Int. Journ. Fatigue, March, 1991, p. 165 This article deals with the residual stresses originated by 'shot peening', and their influence on train springs during a lifetime of service. The spanish firm Construccion y...
The Almen Gage and Almen Strip 1990 Jack Champaigne The Shot Peener magazine, Vol 04/Issue 1, Spring 1990 After the discovery that surface treatment by blast cleaning caused significant fatigue resistance improvement, John Almen devised a scheme to provide process consistency. Intensit...
New Studies May Help Prevent an Old Problem Shot Peening: an answer to hydrogen embrittlement 1990 Wandell, James L. Metal Improvement Co Historically, shot peening of coiled springs ahs been viewed as an ecomomical means of significantly improving their safe operating stress range. Springs, with wire diameters as s...
Improvement in Resistance to Bending Fatigue: Prestress Shot-Blasting of Case-Hardened Steel Gearing 1990 Couratin, D; Guimier, A Galvano-Organo- Traitements de Surface pp439-444 May 1990 For many years prestress shot blasting has been used to improve fatigue limits in steel (e.g. 16CD4). It was used originally for springs and the improvements suggested the process...
The Vehicle Plate Springs Give a Longer Fatigue Life by Ball Shooting Treatment. 1990 Haung, J Materials for Mechanical Engineering (China) 14, (2), Apr. 1990 A number of fatigue life tests have been carried out on vehicle plate springs made of 60Si2Mn steel treated by ball shooting. The results showed that random ball shooting, random ...
Recent Developments In Shot Peening Machine 1990 Aoki, Hiroji and Takeda, Hitoshi Conf Proc: ICSP-4, (p.105-112) The shot peening process has been increasingly employed as one means of improving the endurance reliability of automotive parts. While the effect of shot peening for springs has b...
Improvement Of Hardened Surface By Shot Peening 1990 Ohsawa, M. and Yonemura, T. Conf Proc: ICSP-4, (p.147-158) In the application of shot peening to automotive parts, this process has been the commonly used surface treatment for springs. Today, a tend among automobile manufacturers is to u...
Shot Peening Pioneer Dies at 81 1989 Shot Peening Staff The Shot Peener magazine, Vol 3 / Issue 1, Spring 1989 Henry O. Fuchs, internationally known expert on fatigue in materials, died Tuesday, Jan. 17, at Stanford University Hospital following heart surgery. He was 81. A Stanford profess...
Development Of A High Strength Valve Spring 1989 Abe, Taniguchi, Tetsuyuki, Kuriki,etc. SAE: 890220 Development of a high strength valve spring for automoitve engines achieves higher power output and better fuel economy. New material which consists of finely structure and subjec...
Shot Peening 1989 Heaton, Robert B. Metal Finishing, July 1989 Shot peening is a cold working process in which the surface of a metal part is bombarded with spherical particles (or shot) formed from cast iron, cast steel, stainless steel, cera...
Environment Surrounding The Shot Peening Technology In Japan 1989 Naito, Dr. Takeshi Tokyo Heat Treating Co., Ltd., Yokohama Japan Why was shot peening technology not used extensively? The pracatical use of shot peening (hereafter referred to as S/P) technology to strengthen metals has been used since around ...
Valve Spring With High Fatigue Resistance For Automotive Engine 1988 Shibata, Yamamoto, Hashimoto SAE: 880417 Recently, SiCr clean steel wire for springs on automotive engine valves has been developed. This report describes the characteristics of valve springs subjected to a new manufactu...
The Effect of Shot Peening on the Fatigue Strength of Spring Elements 1987 Kaiser, B. Springs, Oct. 1987 The favorable effect of shot peening of the fatigue strength of components of the most diverse kind, in particular springs, can be approximately optimized, if the shot peening fact...
Application Of A Double-grooved Spring Steel 55simnvb In The Aerolus Truck Eq-140 1987 Ming-Liang,Bang-Jun,Yao-Feng,Chuan SAE: 871253 All trucks produced in the Second Automobile Works (SAW), with annual capacity of 100,000 trucks, have adopted leaf springs with double-grooves incorporated on the compression side...
Practical Aspects of Application of Shot Peening to Improve the Fatigue Behaviour of Metals and Structural Components 1987 Wohlfahrt, H. Conf Proc: ICSP-3, (p.563-584) The aims of this paper are to describe the favourable effects of shot peening which can be useful for the improvement of the fatigue behaviour in practical applications and to dire...
Influence of Peening Parameters, Coating Temperatures and Operating Loads on Residual Stresses of Shot-Peened Barrell Springs 1987 Hutter, W. and Kloos, K.H. Conf Proc: ICSP-3, (p.509-516) In recent years, a clear trend has developed towards increasing the strength of vehicle suspension springs by the greater utilization of the properties of materials. This trend ev...
Fatigue Strength Of Case Hardened And Shot Peened Gears 1987 Hirsch, Wohlfahrt, Macherauch Conf Proc: ICSP-3, (p.547-560) Shot peening is a production treatment for components as for example springs, shafts or gears resulting in improvements of the fatigue strength. Shot peening induced changes occur...
Effects Of Shot Peening On The Corrosion Fatigue Properties Of Spring Steels 1987 Kaiser, B. Conf Proc: ICSP-3, (p.667-674) Besides heat treatment and mechanical surface strengthening methods to improve the fatigue limit, corrosion preventing procedures have to be employed for longer durability of safet...
Additional Shot Peening For Workshop 1987 Salko, Djosic Conf Proc: ICSP-3, (p.163-168) In one normal size manufacturing shop for different types of springs, gears, wheels, car parts, shafts etc. necessary to have special room for shot peening. As indicated on the fi...
The Effect Of Peening Shot Size On The Performance Of Carbon Steel Springs 1986 Bird, G. and Saynor, D. Springs, October 1986 The effect of shot peening on the properties of helical compression springs of various materials and wire sizes, using cast steel shot sizes between S70 and S550, was examined. Th...
Helical Coil Spring Design 1986 Saynor, D. Engineering, June 1986 It is probably because they are so commonplace tht helical coil springs are frequently regarded as low grade components by designers. As a consequence they are rarely given suffic...
Effect Of Shot-peening On Fatigue Behavior Of Compressive Coil Springs 1986 Wei, Ge, C. Wang and R. Wang Adv. in Surf. Treat.Tech.Vol. 3, 215-219 (Pergamon) The fatigue properties of compressive coil springs of stainless steel have been investigated. It was found that the optimum peening conditions exist which give the maximum increas...
Fretting Fatigue Of Automotive Leaf Spring 1986 Mutoh, Tanaka, Takeda Fat.of Engrg.Mater.and Struc.Vol.I,15-16 Sept. fretting fatigue tests on leaf springs and small axial-loading specimens were carried out under constant loading and random loading simulating field load spectra. The results for ...
Effect of Shot-Peening Duration on the Relaxation & Fatigue Properties of Engine Valve Springs 1986 Hayes, M.P. Impact Surface Treatment, British Impact Treatment Sp. Res. & Man. Eng. p79 Shot peening is used to improve the fatigue performance of springs and many engineering components, but the process has a detrimental effect on static stress relaxation. Relaxatio...
Shot Peening 1986 Fuchs, Henry O. Mechanical Engineers Handbook, pp 941-951 Chapter 32 Shot peening is a process for treating metal parts by controlled high-speed impact of many balls (shot). It is used mainly to increase the resistance of metal parts gainst fatigue...
Conveyor System for a Shot Peening Machine 1985 Gerold Lienert US Patent 4,599,879 A conveyor system is for a shot peening machine of the type which includes blast wheels which are capable of propelling shot generally downwardly into a critical blast region for s...
Shot Peening Machine 1985 Gerold Lienert US Patent 4,604,881 An improved shot peening machine is of the type which includes blast wheels capable of propelling a plurality of shot generally downwardly into a critical blast region of the machi...
High Sag Resistance Spring Wire For Automotive Suspension 1985 Murai,Teruyuki,Takamuku,Seizo, etc. SAE: 850059 In recent years, efforts have been undertaken to increase the stress load on spring materials and to decrease wire diameter in order to reduce weight. However, progress has been s...
Fatigue Life of Stress-Peened Helical Compression Springs 1985 Brodrick, R. U.S. Army Research and Dev. Dover, NJ Stress peening variables ( i. e., shot peening while under applied stress) are studied for their effect on fatigue life of helical compression springs. Comparisons are made with t...
Fatigue Life Of Stress-peened Helical Compression Springs 1985 Brodrick, R. U.S. Army Arm. Res. & Develop. Ctr., Feb. 1985 Stress peening variables (i.e., shot peening while under applied stress) are studied for their effect on fatigue life of helical compression springs. Comparisons are made with the...
Controlled Shot Peening Of Automotive Components 1985 Burrell, N.K. SAE: 850365 The controlled shot peening process is by no means new to the automotive industry. This process is routinely used on many mechanical components to increase fatigue life. In other...
Shot Peening Techniques for Greater Fatigue Life In Springs 1984 Robert A. Bell SPRINGS, Oct 1984 p.61-66 A long-accepted practice for extending the fatigue life of high duty springs is shot peening. According to historians, this process was discovered by accident at a time when impro...
The Use Of Specialised Shot Peening Techniques Or Tapered Leaf Suspension Springs For Road Vehicles 1984 Robinson, C.G. and Smart, E. Conf Proc: ICSP-2, (p. 79-83) Techniques have been put into practice which allow the design of springs to stresses up to 40% higher than those used in the design of conventional leaf springs. The paper describ...
Manual On Shot Peening 1984 SAE SAE: SP- 84 This manual on Shot Peening is intended to be a practical aid to engineers, designers, and men in the shop, pointing out both some of the possibilities and some of the limitations ...
Effects Of Shot-peening On Fatigue Of Compressive Coil Springs 1984 Baao, Zhenhuan, Zhunling, Renzhi Conf Proc: ICSP-2, (p.115-121) The fatigue properties of compressive coil springs of stainless steel have been investigated. It was found that the optimum peening conditions exist which give the maximum increas...
Separating and Feeding System for a Shot Peening Machine 1982 Gerold Lienert US Patent 4,492,102 A separating and feeding system for a shot peening machine is of the type which includes blast wheels mounted on a housing of the machine and capable of propelling a plurality of s...
Comments on the Energy and Materials Conservation Aspects of Impact Treatment Processes 1982 Meguid, S.A. and Plaster, H.J. J. Mech. Work. Technol. 6, (2-3), Mar. '82 This paper is divided into two parts: the conservation and energy utilization aspects of shot peening and blast cleaning for the purposes of protection and recycling of metallic c...
Allowable Stresses for Helical Compression and Tension Springs of Round Wire 1982 ESDU Int, London, Engl ESDU Data Items 83002 C Dec 1982 ESDU 83002 provides a graphical presentation of the allowable stresses in both compression and tension springs for static of fatigue loading of common spring materials. Data are pr...
Shot Peening Springs 1982 Koenecke, Burrell, Mehelich Springs, October 1982 Shot peening as a method of significantly improving the operating (fatigue) life of springs is by no means new. The commercial origins of the technique go back to the automobile i...
Shot Peening For Improved Castings 1982 DeLitizia, Alfred T. Modern Casting, Vol. 72, No. 10, Oct.1982, p.26-28 Shot peening can be used to reduce surface porosity and increase the fatigue life of ductile iron cast components. In its early stages of development the process was used by GMC e...
Surface Rolling and Other Methods for Mechanical Prestressing of Metals - SAE J811 AUG81 1981 SAE SAE: J 811 Aug81 1.1 INTRODUCTION: The word "prestressing" implies that a stress is applied prior to service. for the pruposes of this discussion this is a true but insufficient, definition. It m...
The Fatigue Strength And Fracture Morphology Of Leaf Spring Steel After Prestressed Shot Peening 1981 J. Xu, D. Zhang, B. Shen Conf Proc: ICSP-1, (p.367-374) Investigations were made on the pulsating bending fatigue properties, residual stress and fracture topography of prestressed shot-peened leaf springs made of steel grade 55SiMnVB. ...
Shot Peening 1981 Niku-Lari, A. Conf Proc: ICSP-1, (p. 1-21) Controlled shot peening is an operation which is used largely in the manufacture of mechanical parts. It should not be confused with sand blasting used in cleaning or descaling pa...
Role Du Grenaillage Sur Duree Vie En Torsion Ondulee D'un Acier Ressort Traite Haut Niveau De Resist 1981 Heinrich, Mas, Lemaitre, Lumet, Boussea Conf Proc: ICSP-1, (p.341-350) 45SCD6 steel is used in the making of either spiral or logitudinal springs. Generally, after oil quenching, it is annealed in the temp. range 425 to 450 deg. C. To use it at a hi...
Improved Method Of Shot Peening Control Examines Variables In Production Process 1981 Sanderson, A.M. and Slingsby, R.G. Conf Proc: ICSP-1, (p.159-166) In commercial practice, helical coil springs, such as automobile valve springs, are shot peened in bulk, the accepted method of control being the inclusion of Almen testpieces. Th...
Einfluss Des Kugelstrahlens Auf Die Schwing.von Fedest.bei Untersch.randent.und Versch.reinheits. 1981 Kloos, K.H. and Kaiser, B. Conf Proc: ICSP-1, (p.359-366) The fatigue life properties of components are decidedly influenced by the condition of the surface zone. Shot peening has been used for a long time as a very effective and economi...
Effect of Shot Peening on the Fatigue Strength of Small Spring Wire and Coil Springs 1981 Hirose, S. Conf Proc: ICSP-1, (p. 51-60) The fatigue characteristics of small springs, of which the dia. ranged from 0.8 to 4.0 mm, were studied, and for comparison, straight wire was also tested by a newly designed minia...
Leaf Spring Stress Peening Method and Apparatus 1980 Gerold Lienert US Patent 4,337,632 A leaf spring stress peening apparatus is composed of a first conveyor capable of transporting a plurality of leaf springs in an unstressed position. A second endless conveyor is p...
Centrifugal Shotting Turbine 1979 Leon Rutten US Patent 4,277,965 A centrifugal shotting turbine having easily replaceable blades shaped so as to project shot at a high rate of ejection in a concentrated jet. The turbine comprises a plurality of ...
A New Heat-treatment Process Overcomes Temperature Relaxation Problems For Spring Users 1979 Slingsby, R.G. Heat Treatment '79 (Conf.),May High-performance springs are demanding increasingly greater use of the potential available from the correct heat treatment of modern spring materials and application of current man...
Material And Processing Effects On Fatigue Performance Of Leaf Springs 1979 Landgraf, R.W. and Francis, R.C. Conf: Congress and Expos.,Mar.'79 (Book) Procedures are developed for assessing the influence of various material and processing factors on the fatigue performance of leaf springs. Cyclic material properties, determined ...
Shot-Peening Procedures For Helical Compression Springs 1976 Swieskowski, Henry P. Gn. T. J. Rodman Lab. Rock Island Arsenal Various shot-peening procedures for the manufacture of cold-wound helical compression springs were investigated to establish optimum shot-peeing methods to increase the life endura...
Shot Peening Gives Parts Higher Fatigue Life 1976 Nachman, Gerald Diesel & Gas Turbine Progress, October, 1976 One of the prerequisites of early fatigue failure of turbine blades, crankshafts, and connecting rods, leaf springs, piston rings and pins, to cite a few examples, is present from ...
Fatigue Failure In Springs 1976 Kurasz, George Machine Design, May 6, 1976, p. 106 Springs are usually squeezed into the smallest possible space, then stressed to the highest limit. As a result, fatigue failure takes a heavy toll. But fatigue can be avoided by ...
Getting Higher Stress Capacity In Long-life Springs 1971 Kurasz, G.W. and Maker, J.H. Metal Progr., June '71, 99, -6- Employing a method involving electropolishing follwied by shot peening, we have raised fatigue strengths in automotive valve springs to exceptional levels. Briefly, the electropol...
Improvement Of Fatigue Properties Of Lightweight Leaf Springs By A Modified Ausforming Process 1968 Bock, R. A., and Justusson, W. M. SAE: 680412 A modified ausform process \sD combining metal deformation with heat treatment \sD has been developed to improve the fatigue properties of spring steels. The fatigue resistance of...
Shot Peening in Spring Design 1966 Straub, John C Springs October 1966 Shot peening is a process utilizing the impact of metallic shot on the surface of machine parts. While in general, there are other purposes of shot peening, its major purpose is in...
Stress Peening Steel Articles 1966 Bartlett, C. W. US Patent 3,438,229 Apparatus and process for stress peening steel articles such as automobile leaf springs wherein a spring is deflected from a free configuration to a contour corresponding to that c...
Means for Treating Coil Springs 1965 Harold F. Schulte, Ardee H. Freeman US Patent 3,383,803 A machine for surface treatment of continuous pitch coil springs comprising horizontally disposed roll cluster having a feed end at one end portion and a delivery end at the opposi...
A Study of the Durability and Peening Intensity Produced by CW-41 Cut Steel Wire Shot as Compared to Amasteel Cast Steel Shot 1965 Hale, David A. Alloy Metal Abrasive Co A sample of new CW-41 Cut Steel Wire Shot, C-41 Cut Steel Wire Shot operating mix, CW-41 Cut Steel Wire Shot separator discharge and an Almen C Test Strip peened in the production ...
Glass Bead Peening Procedures 1965 U. S. Specification MIL-STD-852 This standard establishes minimum requirements and procedures for glass bead peening of ferrous and non-ferrous parts which are subjected to repeated applications of stress such as...
Shot Peening In Gear Design 1964 1964 Straub, J. C. American Gear Mfrs. Assoc., No. 109-13, June 1964 Increased fatigue strength due to shot peening has been firmly established by extensive fatigue tests on a wide variety of machine parts. Although the process is used very extensi...
Spring Peening 1963 Croft, C. P. US Patent 3,094,768 This present invention relates to the peening of springs so as to increase their resistance to fatigue cracking and the like. Among its objects is the provision of a very simple p...
Shot Peening Of Springs 1963 Fuchs, Henry and Bickel, Paul Springs, May 1963, p. 16-20 Each year hundreds of millions of springs are shot peened. They range in size from hydraulic relief spring which fit into a thimble to the giant coils which cradle launching insta...
The Effect of Shot Peening with Cut Wire Shot Verses Cast Steel Shot on the fatigue Life of Coil Springs 1959 Metallurgical Dept Chevrolet Spring and Bumper, Livonia Michigan There is no question of the beneficial effect of shot peening on the fatigue life of coil springs. The question of type of shot peening matioial which will result in the best fati...
Effect of Shot-Peening on Fatigue Strength: A literature Survey and Alalysis 1958 R. P. Felgar General Electric Co, Schenectady, New York During the last twenty years numerous papers have been published in which the beneficial effects of shot-peening are discussed. The results of fatigue tests are presented for two t...
Special Techniques For Increasing Strength And Fatigue Life Of Steel Stressed In Torsion 1957 Hendrickson, N.E. ASTM: Abstract of Bull. No. 224,Sept.1957,p.40-42 This paper discusses the benefits derived from shot peening and prestressing torsion bar springs for track type vehicles. Prestressing is defined by the author as "the application...
Shot Peening 1956 Unknown Unknown During the last twenty years numerous papers have been published in which the beneficial effects of shot-peening are discussed. The results of fatigue tests are presented for two ...
Lightweight Springs For Limited Life 1956 Spaulding, E.H. SAE: Trans. Vol. 64, 1956, p. 453-457 A spring in the Constellation (749) main landing-gear drag-strut damper was redesigned to save 17 lb. The smaller spring required a reduced-size housing, and the overall weight sa...
What's Been Written About Peening (68 Abstracts) 1954 SAE: TR-126 SAE: TR-126, 1954 (68 Abstracts) This bibliography was prepared primarilly for those interested in the shot peening process as a means of improvining the quality of their product in terms of increased fatigue prop...
Effect Of Shot-peening Variables And Residual Stresses On The Fatigue Life Of Leaf-spring Specimens 1954 Mattson, R.L. and Coleman, Jr.,V.S. SAE: Trans. 1954, Vol. 62, p. 546-556 Results of an investigation into the effect of shot-peening variables and the resulting residual stresses on fatigue life are reported in this paper. Leaf springs were the simple ...
Effect of Temperature on Endurance Limit and Relaxation of Spring Materials 1953 F.P. Zimmerli, W.P. Wood SAE Transactions, Volume 62l, 1954, p.557-565 This paper was presented before Division XX of the SAE Iron and Steel Technical Committee, Hershey, PA, Oct. 1, 1953. Endurance limits and load losses at various temperatures fr...
Heat Treating, Setting And Shot-peening Calls For Mechanical Springs 1952 Zimmerli, F.P. Metal Progress, June 1952, V. 67, No. 6 Whether or not a spring is formed in the hard or soft condition it is usual to heat treat it. For soft formed springs either martempering, austempering or the conventional quench...
Cold-Rolling of Fillets 1952 Love, R. J. Engineering, v 174 Aug 8, 1952 p.164 In a series of tests conducted by the Motor Industry Research Association, a process was devised for strengthening fillets by cold-rolling with steel balls. The process was used ...
Torsional Fatigue Failures 1952 Almen, J.O. Product Engrg., Sept.'51,Vol.22 & Mar.'52,Vol.23 Analytical studies of fatigue fractures in torsion bar springs for military vehicles that, in spite of inherent planes of weakness, show that torsional fatigue failures are caused ...
Report On Shot Peening Coverage 1952 Miller and Flyn Buick Motor Div. GM, September, 1952 The desired effect of a shot peening operation is primarily to increase the fatigue life of a part. The percentage increase in life due to peening is determined by comparing eithe...
Increasing Endurance of Magnesium Castings by Surface Work 1951 Found, George H. Metal Progress, Aug. '51 Cold working the surface of metals to improve fatigue strength has been an intriguing subject of study for 25 years, and in the last ten, such treatments have become a common manuf...
The Strength Characteristic of Helical Springs 1951 Thurstoon, R. C. A. Canadian Mining and Metallurgical Bulletin, v. 44 Oct 1951, p. 658-667 A brief discussion of the design of the helical compression spring is given together with the method of manufacture, particularly in regard to the effect on strength characterist...
New Cut-Wire Shot Big Boon to Peening 1949 H.H. Miller, Buick Motor Div SAE Journal August 1949 pps 44-51 Peening automotive chassis springs with cut- wire shot has improved quality and lowered costs, says Miller in this article, based on a paper he presented at a recent meeting of t...
Shot Peening - Designers Guide to the Process, its Applications 1948 Fuchs, H.O. and Hutchinson, E.R. Machine Design, Vol. 30, Feb. 6, '58, pp. 116-125 Developed in the late twenties, shot peening was discovered by accident. a small batch of automobile valve springs behaved much better than expected under test. Investigation rev...
Results of Tests Made to Ascertain Effect of Various Kinds of shot on Fatigue Life 1984 F.P. Zimmerli SAE Iron and Steel Tech Comm Meeting June 17, 1948 This investigation was undertaken to find out how various shot hardness will effect the endurance life. As a matter of interest, attempts were made to determine the possibility of...
Shotpeening 1948 Landecker, Fred K. #480186, Trans. Vol. 2, No. 2, Apr. '48, p. 191-194 The subject of shot peening belongs in a symposium on "the reduction of mechanical wear" because fatigue failures and breakages caused by repeated use should be included in "wear"....
Effect Of Shot Type On Spring Fatigue Life 1948 Zimmerli, F.P. SAE Journal, Nov. 1948, p. 36 & 39 This investigation was undertaken to find out how various shot hardness will affect the endurance life. As a matter of interest, attempts were made to determine the possibility of...
Mechanical and Metallurgical Advantages Of Shot Peening 1945 Horger, O.J. The Iron Age, April 5, 1945 Part 2 of 2 An engineering appraisal of the technical and economic utility of compressing the surface layers of design members as a means of greatly improving their fatigue resistance. In thi...
Mechanical And Metallurgical Advantages Of Shot Peening 1945 Horger, O.J. The Iron Age, Mar. 29, 1945 Part 1 of 2 An engineering appraisal of the technical and economic utility of compressing the surface layers of design members as a means of greatly improving their fatigue resistance. In thi...
Effect Of Shot Blasting On Physical Properties Of Steel 1945 Mattson, R.L. and Almen, J.O. I,OSRD,No.3274;II,OSRD No.4825;III,OSRD No.6697 The work of one year on the study of the shot peening process is summarized in this report. The study consisted primarily of the experimental shot peening of actual machine parts...
Shot Blasting 1944 Clark, H. H. Steel, Feb 28,1944 .....prolongs life of leaf, torsion and helical springs. The Shot Blasting of springs as a means to promote increased fatigue life has been recoginzed and practiced for many yea...
Method of Shot-Blasting Coil Springs 1942 William H. Wallace US Patent 2,341,674 This invention relates to the shot-blasting of coil springs for increasing their useful life and aims to provide a novel method by which the shot-blasting treatment can be carried ...
Shot Blasting And Its Effect On Fatigue Life 1941 Zimmerli ASM: 1941, p.261-278 This article deals with a new method of surface finishing called, for want of a better name, "shot blasting". A fatigue machine for small springs is described. Data from this mac...
Leaf Spring And Method Of Making Same 1941 Wallace, W. H. US Patent 2,234,850 This invention relates to multiple leaf springs and has particular reference to springs adapted for use in automotive vehicles although it is applicable to leaf springs for other t...
Apparatus For Shot Blasting Leaf Springs 1941 Wallace, W. H. US Patent 2,252,823 This invention relates generally to the manufacture of leaf springs, and, more particularly, concerns conveyor apparatus including spring plate holding carriers for conveying sprin...
Coil Spring 1940 William H. Wallace US Patent 2,351,726 My invention relates to coil springs and the art of treating the same to increase their useful life in comparison with similar springs as heretofore manufactured. Th invention is p...
Apparatus for Treating Coil Springs 1940 William H. Wallace US Patent 2,249,677 My invention relates to coil springs and the art of treating the same to increase their useful life in comparison with similar springs as heretofore manufactured. The invention is ...
How Shot Blasting Increases Fatigue Life 1940 Zimmerli, F. P. Machine Design, V.12, Nov. 1940, p.62 Shot blasting has done more to increase fatigue life of our small springs than any of the alloy steels ever used. This statement is based on tests conducted on a large number of sp...
The Uniform-section Disk Spring 1935 Almen, J.O. and Laszlo, A. ASME: No. S 149 The authors point out in this paper that initially coned annular-disk springs of uniform cross section may be proportioned to give a wide variety of load-deflection curves not read...
Produces Compacted Surface Layer Resisting Fatigue 1934 Verwerk, Paul Otto Friedrich US Patent 1,946,340 The present invention resides in the discovery, that by a structural improvement of a very thin superficial layer on the surfaces of springs, the number of oscillations up to fati...
Method of Treating Springs 1930 Paul Otto Friedrich Vorwerk US Patent 1,947,927 It is generally known that the number of oscillations up to fatigue or fracture of springs, particularly leaf springs, is related with the properties of the surface of the springs....