基于Magmasoft的汽车前叉压铸成型数值仿真

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英文篇名：Numerical Simulation of Die Casting of Automobile Fork Based on Magmasoft 作者：蔡彧 英文作者：CAI Yu;Chongqing Three Gorges Vocational College; 关键词：A357铸造铝合金 ; 汽车前叉 ; 铸造成型 ; 数值仿真 英文关键词：A357 casting aluminum alloy;;automobile fork;;casting forming;;numerical simulation 中文刊名：SJGY 英文刊名：Hot Working Technology 机构：重庆三峡职业学院; 出版日期：2019-04-13 09:24 出版单位：热加工工艺 年：2019 期：v.48;No.509 基金：重庆市教育委员会科学技术研究项目(KJ1603310) 语种：中文; 页：SJGY201907025 页数：4 CN：07 ISSN：61-1133/TG 分类号：106-108+111

摘要

分析了A357铸造铝合金汽车前叉铸造成型工艺,运用Magmasoft专业铸造有限元分析软件建立了其压铸成型仿真模型。分析了充型过程的压力分布,分析了铸件结构对熔融金属流动及铸件温度的影响,研究了铸件凝固冷却应力分布及缩孔、缩松。结果表明:随着充型率增加,压力最大值也逐渐增加,不同充型率下的压力不同;铸件结构对熔融金属流动影响较大,对铸件温度影响较小;凝固冷却应力主要集中在复杂部位;随着凝固分数增大,缩孔、缩松率逐渐增加。
        The casting process of A357 aluminum alloy front fork was analyzed. The simulation model of die casting molding was established by using Magmasoft software. The pressure distribution during filling process was analyzed, and the influence of casting structure on the molten metal flow and casting temperature was analyzed. The distribution of cooling stress in castings solidification and the shrinkage and porosity were studied. The results show that with the increase of filling fraction, the maximum pressure increases gradually, and the pressure is different under different filling fraction. The structure of the casting has a great influence on the flow of molten metal and has little effect on the temperature of the casting. The solidification cooling stress is mainly concentrated in the complex part. With the increase of solidification fraction, the fraction of shrinkage and porosity increase gradually.

引文

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