Effect of die geometry on residual stress level present after bar drawing

被引：0
|
作者：
Kuboki, T. [1 ]
Akiyama, M. [1 ]
Neishi, Y. [1 ]
Kuroda, K. [1 ]
机构：
[1] Bar and Wire Proc. Devmt. Section, Corporate R and D Laboratories, Kokura Steel Works, Konomi-machi Kokura-kita-ku, Kitakyushu 802-8686, Japan
来源：
Ironmaking and Steelmaking | 2001年 / 28卷 / 01期
关键词：
Computer simulation - Drawing dies - Finite element method - Geometry - Residual stresses;
D O I：
10.1179/irs.2001.28.1.65
中图分类号：
学科分类号：
摘要：
A new drawing die designed to reduce the residual stresses in bar after drawing is presented. The die design consists of two consecutive straight taper portions, and the outlet portion has a very small die angle. The marked beneficial effect of adding the outlet portion was predicted by finite element modelling (FEM), and subsequently verified by measuring the residual stresses in drawn bars. The optimum range of the outlet die angle was determined using FEM. The new design requires a slightly longer die length than the conventional one, but it is short enough to be adopted in current production lines.
引用
收藏
页码：65 / 71
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