Numerical Simulation of the Closed Die Forging Process for Aluminum Alloy Connecting Rod

Wu Taibin; Ma Bing; Zhang Jiejiang

doi:10.15980/j.tzzz.2015.09.027

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Numerical Simulation of the Closed Die Forging Process for Aluminum Alloy Connecting Rod
Vol. 35, Issue 9, Pages: 991-995(2015)
Published： 2015 ，
DOI： 10.15980/j.tzzz.2015.09.027

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[1]伍太宾,马斌,张杰江.铝合金连杆体闭塞锻造成形过程的数值模拟[J].特种铸造及有色合金,2015,35(09):991-995.

Wu Taibin, Ma Bing, Zhang Jiejiang. Numerical Simulation of the Closed Die Forging Process for Aluminum Alloy Connecting Rod. [J]. Special Casting & Nonferrous Alloys 35(9):991-995(2015)
[1]伍太宾,马斌,张杰江.铝合金连杆体闭塞锻造成形过程的数值模拟[J].特种铸造及有色合金,2015,35(09):991-995. DOI： 10.15980/j.tzzz.2015.09.027.

Wu Taibin, Ma Bing, Zhang Jiejiang. Numerical Simulation of the Closed Die Forging Process for Aluminum Alloy Connecting Rod. [J]. Special Casting & Nonferrous Alloys 35(9):991-995(2015) DOI： 10.15980/j.tzzz.2015.09.027.

摘要

采用刚塑性有限元法

利用Deform-3D有限元软件对铝合金连杆体三向闭塞锻造成形过程进行了数值模拟。研究了在三向闭塞锻造成形过程中凸模的3种运动方式对铝合金连杆体成形过程中的等效应力、等效应变、金属流动速度矢量场以及变形载荷的影响。模拟结果表明

其凸模的运动方式采取上凹模和下凹模先合模

在上圆凸模、上方凸模向下运动的同时下圆凸模、下方凸模向上运动以后

侧凸模再沿着水平方向向左运动

连杆体内各部位的变形程度不大

金属流动较均匀

其成形件品质较好

锻件充填饱满

无成形缺陷存在

而且凸模的受力都不大

模具寿命较高。

Abstract

According to the three dimension closed die forging process of aluminum alloy connecting rod

the process was simulated numerically using Deform-3Drigid-plastic finite element software.Effects of three direction movement of punch on the effective stress field

effective strain field

velocity field of material

and forging load in the process were investigated.The simulation results reveal that the concave motion modes is beneficial for the heterogeneous flow of metal and the anti-deformation at different position of connecting rod

taking the satisfied quality and improving the service life of mould

where the forging parts exhibit fully filling with absence of forming defects.