低压铸造镁合金转向节的数值模拟与性能研究

崔凡平; 李德江; 曾小勤; 丁文江

doi:10.15980/j.tzzz.2019.04.004

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低压铸造镁合金转向节的数值模拟与性能研究
Numerical Simulation and Performance of Low Pressure Casing Magnesium Alloy Steering Knuckle
2019年39卷第4期页码：361-365
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.04.004

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[1]崔凡平,李德江,曾小勤,丁文江.低压铸造镁合金转向节的数值模拟与性能研究[J].特种铸造及有色合金,2019,39(04):361-365.

Cui Fanping, Li Dejiang, Zeng Xiaoqin, et al. Numerical Simulation and Performance of Low Pressure Casing Magnesium Alloy Steering Knuckle[J]. Special Casting & Nonferrous Alloys, 2019,39(4):361-365.
[1]崔凡平,李德江,曾小勤,丁文江.低压铸造镁合金转向节的数值模拟与性能研究[J].特种铸造及有色合金,2019,39(04):361-365. DOI： 10.15980/j.tzzz.2019.04.004.

Cui Fanping, Li Dejiang, Zeng Xiaoqin, et al. Numerical Simulation and Performance of Low Pressure Casing Magnesium Alloy Steering Knuckle[J]. Special Casting & Nonferrous Alloys, 2019,39(4):361-365. DOI： 10.15980/j.tzzz.2019.04.004.

摘要

以低压铸造Mg-Gd-Y-Zr合金转向节为研究对象

采用AnyCasting软件模拟铸造过程

优化铸造工艺参数并进行模具设计。同时优化了合金的热处理工艺参数

获得最佳热处理参数为:500℃×8h固溶处理

200℃×24h时效处理。低压铸造镁合金转向节本体取样分析结果表明

铸件不同部位实测性能与其晶粒尺寸大小具有较高的相关性

且晶粒尺寸的测量值与模拟预测值有较高的一致性。

Abstract

Low pressure die casting Mg-Gd-Y-Zr alloy steering knuckle was simulated by AnyCasting software to optimize the process parameters and to provide a guide for mould die design.The heat treatment parameters of the alloy were optimized to be solution treatment at 500℃for 8 hand aging treatment at 200℃for 24 h.The sampling analysis results show that the measured properties at different parts of the steering knuckle have a high correlation with the grain size.Also

the experimental and predicted value of grain size presents high consistency.