Surface Integrity Can Affect Reliability Of Your High-strength Parts

Author:  Field, Michael
Source:  Machine and Tool Blue Book, Feb. 1974
Doc ID:  1974003
Year of Publication:  1974
Abstract:  
The quality of a machined surface is becoming more and more important in satisfying the increasing demands of performance and reliability. Aerospace structures, for example, are being subjected to more severe conditions of stress, temperature and hostile environments while, at the same time, section size is decreasing due to demands for weight reduction. Modern production methods, both conventional and electrically assisted, have been developed to process the highest strength and high-temperature alloys which have evolved in recent years. As these high-performance materials have become more difficult to machine, advanced designs have necessitated closer dimensional control. The difficulty in working these high-strength materials and the sensitivity of component surfaces inherent in many processing operations brings the need for careful attention to finished surfaces critically into focus.