Journal of the Korean Society for Precision Engineering (한국정밀공학회지)
- Volume 15 Issue 11
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- Pages.145-151
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- 1998
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
A Study on the Drawing Process of Square Rod from Round Bar by Using the Rigid-Plastic Finite Element Method
강소성 유한요소법을 이용한 원형봉에서 정사각재 인발공정에 관한 연구
Abstract
Unlike the drawing of round section from round bar, the shaped drawing like polygonal section is known to have influence not only drawing stress but also corner filling. Therefore. this study analyze the drawing process of suqare rod from round bar using nonsteady state rigid-plastic FEM. To investigate effects of process variables of the drawing process of square rod from round bar, FE-simulations with variety of reduction in area and semi-die angle for a given frictional condition have been conducted. By this results, it has to suggest optimal process condition on the drawing stress and the corner filling. In addition, it has determined forming limit considering necking and bulging.
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