基于高压铸造的结构设计及铝合金壳体抗拉强度测试  

Structure Design and Tensile Strength Test of Aluminum Alloy Shell Based on High Pressure Casting

作　　者：赵芳芳 徐远志[2] 陈国庆[1] 赖德鹏 严景明[1] 唐文昌 

机构地区：[1]广西电力职业技术学院,广西南宁530000 [2]昆明云内动力股份有限公司,云南昆明650000

出　　处：《大众科技》2020年第11期59-62,共4页Popular Science & Technology

基　　金：2019年度广西高校中青年教师科研基础能力提升项目"汽车产业零部件轻量化-YL112压铸铝设计及机械性能测试"(2019KY1506)。

摘　　要：基于弹性力学理论和高压铸造铝合金的工艺条件,分析不同结构在相同载荷下的应力、变形以及测试下的零部件抗拉强度。通过有限元仿真可知,槽型和工字型结构用于轻量化壳体的设计比十字结构和类T结构更优,采用槽型和工字型结构来设计5 mm^6 mm壁厚的壳体类零部件,并对零部件进行抗拉强度测试,试验结果表明:同一批次生产的高压铸铝铝合金壳体的抗拉强度差异较大,增加压铸机的吨位和采用槽型结构有利于提高壳体部件抗拉强度的稳定性。Based on the theory of elasticity and the process conditions of high pressure casting aluminum alloy,the stress and deformation of different structures under the same load and the tensile strength of parts tested are analyzed,.Through the finite element simulation,it can be seen that the groove type and I-shaped structure are better than the cross structure and similar t structure in the design of lightweight shell,and the groove type and I-shaped structure are used to design 5 mm^6 mm wall thickness of shell components,and tensile strength of the parts were tested.The test results show that the tensile strength of high-pressure cast aluminum alloy shell produced in the same batch is quite different.Increasing the tonnage of die casting machine and adopting groove structure can improve the stability of tensile strength of shell parts.

关 键 词：高压铸造 轻量化 壳体 抗拉强度 

分 类 号：TG27[金属学及工艺—铸造]