铝合金轮状零件流变挤压铸造成形研究

张树国; 杨湘杰; 郭洪民; 汪丽君

doi:10.15980/j.tzzz.2017.12.004

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铝合金轮状零件流变挤压铸造成形研究
Rheo-squeeze Casting of Aluminium Alloy Wheel-shaped Parts
2017年37卷第12期页码：1292-1294
纸质出版日期： 2017 ，
DOI： 10.15980/j.tzzz.2017.12.004

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[1]张树国,杨湘杰,郭洪民,汪丽君.铝合金轮状零件流变挤压铸造成形研究[J].特种铸造及有色合金,2017,37(12):1292-1294.

Zhang Shuguo, Yang Xiangjie, Guo Hongmin, et al. Rheo-squeeze Casting of Aluminium Alloy Wheel-shaped Parts[J]. Special Casting & Nonferrous Alloys, 2017,37(12):1292-1294.
[1]张树国,杨湘杰,郭洪民,汪丽君.铝合金轮状零件流变挤压铸造成形研究[J].特种铸造及有色合金,2017,37(12):1292-1294. DOI： 10.15980/j.tzzz.2017.12.004.

Zhang Shuguo, Yang Xiangjie, Guo Hongmin, et al. Rheo-squeeze Casting of Aluminium Alloy Wheel-shaped Parts[J]. Special Casting & Nonferrous Alloys, 2017,37(12):1292-1294. DOI： 10.15980/j.tzzz.2017.12.004.

摘要

通过开发专用模具

对轮状铝合金铸件进行了流变挤压铸造成形研究。利用自主开发的3 000kN立式半固态挤压铸造机进行试验

对铸件的微观组织和力学性能进行了分析研究。结果表明

模具温度为200℃左右

浇注温度为630

36℃

在比压为80MPa时

流变挤压铸造成形7075铝合金铸件毛坯

其微观晶粒细小

无枝晶产生

T6热处理后

其综合力学性能达到使用要求

接近锻件的性能。

Abstract

Through the special mold

the rheological squeeze casting of aluminum alloy wheel parts was carried out.The self-developed 3 000 kN vertical semi-solid squeeze casting machine was used to produce the parts

and microstructure and mechanical properties of the parts were analyzed.The results show that with mold temperature of about 200 ℃

the pouring temperature of 630

36 ℃

and the specific pressure of 80 MPa

rheo-squeezing casting 7075 aluminum alloy wheel-shaped parts has the fine grain size with absence of dendrites

and the comprehensive mechanical properties meet the requirements

which are closed to the forging parts after T6 heat treatment.