基于局部包络密度的铸件收缩尺寸的精确设计

黄西西; 吴士平; 戴贵鑫; 王明杰; 彭恒元; 慕岩; 张晓东; 陈瑞润

doi:10.15980/j.tzzz.2021.05.004

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基于局部包络密度的铸件收缩尺寸的精确设计
Accurate Design of Casting Shrinkage Dimension Based on Local Envelope Density
2021年41卷第5期页码：543-546
纸质出版日期： 2021 ，
DOI： 10.15980/j.tzzz.2021.05.004

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[1]黄西西,吴士平,戴贵鑫,王明杰,彭恒元,慕岩,张晓东,陈瑞润.基于局部包络密度的铸件收缩尺寸的精确设计[J].特种铸造及有色合金,2021,41(05):543-546.

Huang Xixi, Wu Shiping, Dai Guixin, et al. Accurate Design of Casting Shrinkage Dimension Based on Local Envelope Density[J]. Special Casting & Nonferrous Alloys, 2021,41(5):543-546.
[1]黄西西,吴士平,戴贵鑫,王明杰,彭恒元,慕岩,张晓东,陈瑞润.基于局部包络密度的铸件收缩尺寸的精确设计[J].特种铸造及有色合金,2021,41(05):543-546. DOI： 10.15980/j.tzzz.2021.05.004.

Huang Xixi, Wu Shiping, Dai Guixin, et al. Accurate Design of Casting Shrinkage Dimension Based on Local Envelope Density[J]. Special Casting & Nonferrous Alloys, 2021,41(5):543-546. DOI： 10.15980/j.tzzz.2021.05.004.

摘要

为了更精确地控制铸件收缩尺寸

提出了一种提高铸件尺寸精度的新设计方法。以ZL205A合金为研究对象

采用数值模拟方法模拟对比传统、整体包络密度以及局部包络密度3种铸件收缩率设计后的铸件。结果表明

基于局部包络密度设计方法对铸件收缩尺寸精度的控制效果最佳

是一种能够量化局部约束影响

提高铸件局部尺寸精度的设计方法

优于传统经验设计和整体包络密度设计方法。

Abstract

In order to control the shrinkage dimension more accurately and improve the precision of casting dimension

and a new design method to improve the dimensional accuracy of casting was presented. ZL205 A alloy was taken as the research object. The castings assigned with shrinkage rate of three kinds of castings including traditional

global envelopment density and local envelopment density by numerical simulation method

then

they were simulated and compared. The simulation results showed that the method based on local envelope density was the best for controlling the shrinkage dimension precision of casting

and it was a calculation scheme that can quantify the influence of local constraints and improve the precision of local dimension of casting. It was better than traditional experience and overall envelope density assignment.