Coverage Measurement Innovation From Determination to Numerical Analysis

Author:  Kanehisa Hattori, Toyo Seiko
Source:  The Shot Peener magazine, Vol 26 / Issue 3, Summer 2012
Doc ID:  2012022
Year of Publication:  2012
Abstract:  
PRODUCT NEWS: A SIMPLIFIED CALIBRATION PROCESS Quality Assurance for shot peened parts is mainly materialized with inspection of arc height intensity and coverage, or roughness, residual stress or hardness. As for appropriate coverage judgment, personnel have to be well-educated and experienced because accuracy depends on individual capability. If coverage testing is performed with insufficient accuracy,it will undermine the value of coverage as a guarantee of quality. Two years ago Toyo Seiko Co., Ltd. developed a coverage measurement device called the Coverage Checkerâ„¢. Inconvenience in the calibration process has prevented its spread. In this report, a simplified calibration process is explained and two types of calibration line for flat and curved surface are enumerated.