文献类型：期刊文献

中文题名：新型铝硅基铸造壳体凝固成形研究

英文题名：Analysis of casting solidification process for new Al-Si based shell

作者：马勇杰[1,2];程光[3,4];姜二彪[4]

第一作者：马勇杰

机构：[1]北京联合大学北京市智能机械创新设计服务工程技术研究中心,北京100027;[2]北京联合大学机器人学院,北京100027;[3]北京联合大学城市轨道交通与物流学院,北京100101;[4]机械科学研究总院集团有限公司先进成形技术与装备国家重点实验室,北京100044

第一机构：北京联合大学机器人学院

年份：2020

卷号：0

期号：4

起止页码：79-83

中文期刊名：制造技术与机床

外文期刊名：Manufacturing Technology & Machine Tool

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；

基金：北京市教委科技计划项目“铝硅基变质处理材料精铸特性及数值模拟研究”(KM201611417010);2015年工业转型升级强基工程项目“工程机械与工程车辆用多路阀”(TC150B5C0/29);北京联合大学人才强校优选计划。

语种：中文

中文关键词：铝合金;铸造;薄壁壳体;压缩试验;数值模拟

外文关键词：aluminum alloy;casting;thin-walled shell;compression test;numerical simulation

摘要：新型铝合金材料用于薄壁壳体铸件制备,通过向ZL101A合金中增添微量Ni元素,基于ProCAST铸造仿真软件设计液压泵壳体低压铸造工艺,数值模拟铸件不同部位固相出现时间,并预测铸件凝固过程中缩孔缩松现象。实际生产铝合金薄壁壳体铸件,并对壳体棒料进行高温压缩实验,利用结构变形机理以及微观组织特点分析铸件凝固成形机理。分析合理的浇注温度以及热处理工艺,能够对壳体铸件缩孔缩松现象进行有效控制,保证改进铝硅合金薄壁壳体铸件质量。
The new aluminum alloy casting material was used for the thin-walled shell of hydraulic pump,where the trace addition of Ni was added into the ZL101A alloy.The low pressure casting process was numerically simulated with ProCAST casting simulation software.And the time to solidus,shrinkage and porosity during the casting solidification were predicted by the results of temperature and flow fields simulations.Aluminum alloy pump shell casting was manufactured according to the actual engineering process,and specimens obtained from the casted pump shell were carried by the isothermal hot compression tests.The structural deformation mechanism and microstructural characteristics of compression specimens at different rates and temperatures were analyzed.The reasonable pouring temperature and heat treatment technique will be used to guide the investment casting process design.Then the shrinkage and porosity of shell castings can be effectively controlled,and the investment casting quality of the Al-Si based thin-walled shell can be improved.