- Volume 14 Issue 12
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A Study on the Effect of V-Ring Pressure and Clearance on the Die Roll Height Through the Fine Blanking
파인블랭킹 공정에서 V-링 압력과 클리어런스가 다이 롤 높이에 미치는 영향에 관한 연구
- Lee, Chun-Kyu (Div. of Mechanical & Automotive Engineering, Kongju National University) ;
- Kim, Jong-Deok (Molds and Dies Technology R & D Group, Korea Institute of Industrial Technology) ;
- Kim, Young-Choon (Div. of Mechanical & Automotive Engineering, Kongju National University)
- Received : 2013.08.30
- Accepted : 2013.12.05
- Published : 2013.12.31
Minimizing the height of the die roll is very important for maximizing the size of effective shear planes. In this study, the die roll change was investigated for the change in the amounts and clearance of the V-ring indentation. Shear analysis and experiments were conducted with the V-ring distance fixed to 2mm. Fine blanking die was applied to the die insert with different clearances. Several specimens were analyzed about the height of the die roll. As a result, the pressure of V-ring effectively inhibited the flow of materials. And the height of the die roll was lowest when the clearance between the die and punch was 1% of the material thickness.
Clearance;Die Roll;Effective Share Surface;Fine Blanking;V-ring Force
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