Spring of shot peening process

1) Combination of shot peening technology. Combination of shot peening, general also calls the shot peening process for many times. Most economic technology is to use the second shot peening. Through the adoption of different diameter of shot peening grain. * time large pill grain is used to obtain the residual compressive stress and surface finish. 2) Stress shot peening process. Stress shot peening process is also a more classic shot peening process, only because is hard to used in mass production, but in recent years due to the rapid development of stress shot peening equipment, automobile suspension spring in high stress obtained the considerable development in the mass production. Shot peening treatment especially stress and other combination of shot peening technology application has the very good strengthening effect. Prestressed stress shot peening generally set in ( 700 ~ 800) MPa, after blasting stress, residual stress peak value can reach ( 1200 ~ 1500) MPa, and high fatigue strength is obtained. 3) The spring hot crush process. Hot crush process is mainly used in high resistance to permanent deformation of the spiral spring, as a senior stabilizing treatment technology of permanent deformation. Hot crush process besides can significantly improve the resistance to permanent deformation, also can improve the fatigue life. The above three points is spring manufacturer for your summary of shot peening technology, hope I can help you better understand use.
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