高真空压铸铝合金减震塔工艺开发及应用

汪学阳; 黄志垣; 廖仲杰; 钟鼓; 张俊超; 阚洪贵; 韩志强; 万里

doi:10.15980/j.tzzz.2018.08.013

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高真空压铸铝合金减震塔工艺开发及应用
Application and Development of High Vacuum Die Casting Process for Aluminum Alloy Shock Tower
2018年38卷第8期页码：860-863
纸质出版日期： 2018 ，
DOI： 10.15980/j.tzzz.2018.08.013

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[1]汪学阳,黄志垣,廖仲杰,钟鼓,张俊超,阚洪贵,韩志强,万里.高真空压铸铝合金减震塔工艺开发及应用[J].特种铸造及有色合金,2018,38(08):860-863.

Application and Development of High Vacuum Die Casting Process for Aluminum Alloy Shock Tower[J]. Special Casting & Nonferrous Alloys, 2018,38(8):860-863.
[1]汪学阳,黄志垣,廖仲杰,钟鼓,张俊超,阚洪贵,韩志强,万里.高真空压铸铝合金减震塔工艺开发及应用[J].特种铸造及有色合金,2018,38(08):860-863. DOI： 10.15980/j.tzzz.2018.08.013.

Application and Development of High Vacuum Die Casting Process for Aluminum Alloy Shock Tower[J]. Special Casting & Nonferrous Alloys, 2018,38(8):860-863. DOI： 10.15980/j.tzzz.2018.08.013.

摘要

针对某电动汽车用车身结构件减震塔的轻量化要求

研究了铝化设计对其减重效果的影响

并开发了适合于铝合金减震塔的高真空压铸工艺。结果表明

基于装配、刚性和压铸成形的合理设计

可实现减重约35%。浇注系统合理设计和真空度控制是影响卷气和力学性能稳定的重要因素。基于气泡试验和力学性能结果的分析

优化了内浇口设计方案。改善后的铸件经过T6热处理后

其抗拉强度大于300 MPa

屈服强度大于250 MPa

伸长率大于8%

满足使用要求。

Abstract

Based on the requirement of lightening for an electric vehicle structural part of the shock tower

influence of the aluminum design on weight-reduce was analyzed and a high vacuum die-casting process suitable for the aluminum alloy shock tower was developed.The results reveal that the rational mould design can decrease the weight of the shock tower by about 35% based on assemble

rigidity and die casting process.In addition

the reasonable design of the casting system and the control of the vacuum degree are the important factors affecting the stability of the air-gap and mechanical properties.Based on the analysis of bubble test and mechanical analysis

the design of ingate was optimized.The shock tower part can be achieved with tensile strength higher than 300 MPa yield strength higher than250 MPa and the elongation higher than 8%

after T6 heat treatment

meeting the requirement of OEM.