An Investigation of Punch Radius and Clearance Effects on the Sheet Metal Blanking Process

Authors : Onur ÇAVUŞOĞLU

Pages : 309-316

Doi:10.30939/ijastech..1190699

View : 12 | Download : 5

Publication Date : 2022-12-31

Article Type : Research Paper

Abstract :In this study, the effects of punch edge radius and blanking clearance on product quality and blanking process in blanking of AISI 304 stainless steel sheet were investigated by using the fi-nite element analysis method. The blanking analyzes were performed at four different punch tip radii insert ignore into journalissuearticles values(0.01, 0.25, 0.5, 1 mm); and three different blanking clearance insert ignore into journalissuearticles values(1 %, 5%, 10%);. As a result of the analysis, rollover, burr length increased, smooth sheared / fractured surface ratio and blanking force decreased with the increase in blanking clearance. Depending on the increase in the amount of punch tip radius, the blanking force, and burr length also increased, and the smooth sheared / fractured surface ratio decreased compared to the blanking process with flat punches.
Keywords : Sheet metal blanking, Clearance, Punch radius, Blanking force, Burr, sheet metal forming