不同模型腔角下铜铝复合连续包覆过程的数值模拟

彭孜; 张强; 戴登峰; 吴锦明

doi:10.15980/j.tzzz.2012.08.018

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不同模型腔角下铜铝复合连续包覆过程的数值模拟
Numerical Simulation of Continuous Extrusion Cladding Copper-Al under Die Different Diversion Angle
2012年32卷第8期页码：714-716
纸质出版日期： 2012 ，
DOI： 10.15980/j.tzzz.2012.08.018

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[1]彭孜,张强,戴登峰,吴锦明.不同模型腔角下铜铝复合连续包覆过程的数值模拟[J].特种铸造及有色合金,2012,32(08):714-716.

Peng Zi1, Zhang Qiang1, Dai Dengfeng1, et al. Numerical Simulation of Continuous Extrusion Cladding Copper-Al under Die Different Diversion Angle[J]. Special Casting & Nonferrous Alloys, 2012,32(8):714-716.
[1]彭孜,张强,戴登峰,吴锦明.不同模型腔角下铜铝复合连续包覆过程的数值模拟[J].特种铸造及有色合金,2012,32(08):714-716. DOI： 10.15980/j.tzzz.2012.08.018.

Peng Zi1, Zhang Qiang1, Dai Dengfeng1, et al. Numerical Simulation of Continuous Extrusion Cladding Copper-Al under Die Different Diversion Angle[J]. Special Casting & Nonferrous Alloys, 2012,32(8):714-716. DOI： 10.15980/j.tzzz.2012.08.018.

摘要

利用有限元软件对铜铝复合连续包覆成形过程进行二维有限元数值模拟

详细研究了不同模具模型腔角下金属的流动规律、挤压力、模具载荷、应力、应变分布的影响规律。结果表明

在30°～60°的型腔角度中

模型腔角越小

金属流动越均匀

挤压力越小

越有利于节省能耗、降低成本。从包覆复合的结合面质量方面考虑

模型腔角越小越有利。从防止应力集中

保护模具角度考虑

应选择小的模型腔角。从变形效率方面来说

模型腔角越小越好。在TLJ400连续挤压机上进行了铜铝复合的连续包覆工艺试验

试验结果与数值模拟结果相符合。

Abstract

The continuous extrusion cladding forming process of the Cu-Al wire was simulated by a two-dimensional FEM software to analyze metal flow

velocity distribution

the effective stress and strain distribution under die different diversion angle.The results show that with decreasing in diversion angle

metal flow exhibits more homogeneous

and extruding force is decreased

which is beneficial for saving energy and reducing cost.In addition

small diversion angle is helpful for improving the cladding quality of Cu-Al wire

and for decreasing stress aggregation to improve mould as well as for increasing deformation efficiency.The continuous extrusion forming of Cu-Al was conducted on TLJ400 extruded machine

and the experimental results are well in agreement with the simulated ones.