挤压铸造高强度铝合金汽车转向节铸件

李宇飞; 冯志军; 李泽华; 阮明; 苏鑫

doi:10.15980/j.tzzz.2019.12.009

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挤压铸造高强度铝合金汽车转向节铸件
Squeeze Casting High Strength Aluminum Alloy Automobile Steering Knuckle
2019年39卷第12期页码：1308-1311
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.12.009

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[1]李宇飞,冯志军,李泽华,阮明,苏鑫.挤压铸造高强度铝合金汽车转向节铸件[J].特种铸造及有色合金,2019,39(12):1308-1311.

Li Yufei, Feng Zhijun, Li Zehua, et al. Squeeze Casting High Strength Aluminum Alloy Automobile Steering Knuckle[J]. Special Casting & Nonferrous Alloys, 2019,39(12):1308-1311.
[1]李宇飞,冯志军,李泽华,阮明,苏鑫.挤压铸造高强度铝合金汽车转向节铸件[J].特种铸造及有色合金,2019,39(12):1308-1311. DOI： 10.15980/j.tzzz.2019.12.009.

Li Yufei, Feng Zhijun, Li Zehua, et al. Squeeze Casting High Strength Aluminum Alloy Automobile Steering Knuckle[J]. Special Casting & Nonferrous Alloys, 2019,39(12):1308-1311. DOI： 10.15980/j.tzzz.2019.12.009.

摘要

采用挤压铸造工艺开展了400 MPa级汽车转向节铸件的研制工作

通过Al-Si-Cu-Mg合金成分优化、挤压铸造工艺设计及优化、挤压铸造模具设计及制造、转向节挤压铸造工艺试验等

成功开发出高强度铝合金转向节铸件。铸件本体的抗拉强度、屈服强度、伸长率和布氏硬度（HB）分别达到454.6 MPa、409.2 MPa、6.2%

137.2。

Abstract

The aluminum alloy automobile steering knuckle with 400 MPa in strength was manufactured by squeezing casting. Through optimizing Al-Si-Mg-Cu alloy composition

squeezing casting parameters and designing and manufacturing squeezing mould

high strength aluminum alloy steering knuckle was developed successfully

where tensile strength

yield strength

elongation and hardness reached 454.6 MPa

409.2 MPa

6.2% and 137.2

respectively.