Heat Treatment of High Vacuum Die Casting Automobile Chassis Structural Part

Li Sidi; An Zhaoyong; Huang Mingjun; Wan Li; Huang Zhiyuan; Chan Yiqian

doi:10.15980/j.tzzz.2017.09.012

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Heat Treatment of High Vacuum Die Casting Automobile Chassis Structural Part
Vol. 37, Issue 9, Pages: 975-978(2017)
Published： 2017 ，
DOI： 10.15980/j.tzzz.2017.09.012

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[1]李四娣,安肇勇,黄明军,万里,黄志垣,常移迁.高真空压铸汽车底盘结构件的热处理[J].特种铸造及有色合金,2017,37(09):975-978.

Li Sidi, An Zhaoyong, Huang Mingjun, et al. Heat Treatment of High Vacuum Die Casting Automobile Chassis Structural Part. [J]. Special Casting & Nonferrous Alloys 37(9):975-978(2017)
[1]李四娣,安肇勇,黄明军,万里,黄志垣,常移迁.高真空压铸汽车底盘结构件的热处理[J].特种铸造及有色合金,2017,37(09):975-978. DOI： 10.15980/j.tzzz.2017.09.012.

Li Sidi, An Zhaoyong, Huang Mingjun, et al. Heat Treatment of High Vacuum Die Casting Automobile Chassis Structural Part. [J]. Special Casting & Nonferrous Alloys 37(9):975-978(2017) DOI： 10.15980/j.tzzz.2017.09.012.

摘要

介绍了汽车底盘结构件高真空压铸生产工艺

研究了不同热处理方式对铸件力学性能的影响。结果表明

T5处理可显著提高铸件的强度

其中抗拉强度可提高24%

屈服强度可提高45%;T6处理降低了铸件的极限抗拉强度

但可显著提高铸件的韧性;T6处理后产品伸长率可达到8.4%;T7处理可同时改善铸件的强度和韧性

T7处理后

铸件的屈服强度可提高53%

伸长率最大值可达到9.1%。

Abstract

The high vacuum die casting process of the automobile chassis structual part was introduced

and effects of different heat treatment on the mechanical performance of the structural part were investigated.The results indicate that the strength of the part can be improved greatly by T5 treatment

where the tensile strength and yield strength can be increased by 24%and by 45%

respectively

while the ultimate tensile strength can be deceased by T6 treatment

however the ductility of the part can be improved to 8.4%.The strength and ductility of the part can be enhanced by T7 treatment

where the yield strength can be increased by 53%

and the elongation can reach 9.1%.