薄壁轮辐铝合金轮毂低压铸造工艺仿真及试验

张殿杰; 刘建芳; 聂奎胜; 骆俊廷

doi:10.15980/j.tzzz.2020.07.013

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薄壁轮辐铝合金轮毂低压铸造工艺仿真及试验
Simulation and Test of Die Casting Process for Aluminum Alloy Wheel Hub with Thin-walled Spoke
2020年40卷第7期页码：753-758
纸质出版日期： 2020 ，
DOI： 10.15980/j.tzzz.2020.07.013

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[1]张殿杰,刘建芳,聂奎胜,骆俊廷.薄壁轮辐铝合金轮毂低压铸造工艺仿真及试验[J].特种铸造及有色合金,2020,40(07):753-758.

Zhang Dianjie, Liu Jianfang, Nie Kuisheng, et al. Simulation and Test of Die Casting Process for Aluminum Alloy Wheel Hub with Thin-walled Spoke[J]. Special Casting & Nonferrous Alloys, 2020,40(7):753-758.
[1]张殿杰,刘建芳,聂奎胜,骆俊廷.薄壁轮辐铝合金轮毂低压铸造工艺仿真及试验[J].特种铸造及有色合金,2020,40(07):753-758. DOI： 10.15980/j.tzzz.2020.07.013.

Zhang Dianjie, Liu Jianfang, Nie Kuisheng, et al. Simulation and Test of Die Casting Process for Aluminum Alloy Wheel Hub with Thin-walled Spoke[J]. Special Casting & Nonferrous Alloys, 2020,40(7):753-758. DOI： 10.15980/j.tzzz.2020.07.013.

摘要

为实现轮毂轻量化

同时避免铸造缺陷和降低生产成本

对最小厚度仅为6mm的低压铸造薄壁轮辐铝合金轮毂的工艺进行有限元仿真。以仿真结果为参考

确定了低压铸造过程的升液压力和速度

模具的预热温度

金属液的浇注温度及其充型压力

保压凝固时的压力与时间等主要铸造参数

并进行试生产。结果发现

生产的薄壁轮辐试验样轮具有理想的综合力学性能

弯曲疲劳测试、经向疲劳测试和冲击试验等测试指标均符合标准要求。

Abstract

In order to realize the weight reduction of the hub and to avoid casting defects and reducing production costs

the low pressure die-casting process of the thin-walled spoke aluminum alloy hub with a minimum thickness of only 6 mm was subjected to finite element simulation.Based on the simulation results

the main casting parameters were determined such as the lifting pressure and injection speed

the preheating temperature of the mold

the pouring temperature of the molten metal and its flow rate

as well as the pressure and time during holding and solidification

and trial production was carried out.The test sample wheel with thin-walled spoke produced by the optimized parameters shows excellent comprehensive mechanical properties

and the three reliable performance test indexes meet the requirements of national standard.