低压铸造大尺寸铝合金轮毂的数值模拟及模具优化

赵岩; 王玲娟; 李秀荣; 臧勇

doi:10.15980/j.tzzz.2016.06.015

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低压铸造大尺寸铝合金轮毂的数值模拟及模具优化
Numerical Simulation and Die Optimization of Low Pressure Casting Large Size Aluminum Alloy Wheel
2016年36卷第6期页码：612-616
纸质出版日期： 2016 ，
DOI： 10.15980/j.tzzz.2016.06.015

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[1]赵岩,王玲娟,李秀荣,臧勇.低压铸造大尺寸铝合金轮毂的数值模拟及模具优化[J].特种铸造及有色合金,2016,36(06):612-616.

Zhao Yan, Wang Lingjuan, Li Xiurong, et al. Numerical Simulation and Die Optimization of Low Pressure Casting Large Size Aluminum Alloy Wheel[J]. Special Casting & Nonferrous Alloys, 2016,36(6):612-616.
[1]赵岩,王玲娟,李秀荣,臧勇.低压铸造大尺寸铝合金轮毂的数值模拟及模具优化[J].特种铸造及有色合金,2016,36(06):612-616. DOI： 10.15980/j.tzzz.2016.06.015.

Zhao Yan, Wang Lingjuan, Li Xiurong, et al. Numerical Simulation and Die Optimization of Low Pressure Casting Large Size Aluminum Alloy Wheel[J]. Special Casting & Nonferrous Alloys, 2016,36(6):612-616. DOI： 10.15980/j.tzzz.2016.06.015.

摘要

针对大型铝合金轮毂低压铸造过程中在热节处产生的缩松、缩孔问题

提出改变模具温度和模具厚度的方法消除缺陷

但对"孤立熔池"现象影响较小。为此在以上两种优化工艺的基础上

又在对应产生缺陷部位的模具上加设水冷管。结果表明

该方法不仅使轮毂实现顺序凝固

消除了轮毂厚大部位的缺陷

还提高了轮毂的冷却速度

缩短了生产周期。

Abstract

To solve the problem of shrinkage porosity formed in the hot spot in the process of low pressure casting large aluminum alloy wheel

the methods of changing mold temperature and thickness of mould to eliminate defects were put forward

however

the improvement of isolated molten pool can be ignored.Therefore

on the basis of the above two optimization methods

water cooling tube was set on the corresponding defect position at the die.The results show that the method not only realize wheel sequential solidification to eliminate the defect at the wheel thickness

but also improve the cooling speed of wheel.