铝合金叶轮SLM成型摆放及支撑方案仿真与实验  

Simulation and Experiment on SLM Placement and Support Scheme of An Aluminum Alloy Impeller

作　　者：亢红叶 龚海军[1] 张梦祥 张旸 段虎明 唐刚志[1] 张继祥[1] KANG Hongye;GONG Haijun;ZHANG Mengxiang;ZHANG Yang;DUAN Huming;TANG Gangzhi;ZHANG Jixiang(School of Mechatronics and Vehicle Engineering,Chongqing Jiaotong University,Chongqing 400074,China;Chongqing Electromechanical Additive Manufacturing Co.,Ltd.,Chongqing 401336,China)

机构地区：[1]重庆交通大学机电与车辆工程学院,重庆400074 [2]重庆机电增材制造有限公司,重庆401336

出　　处：《热加工工艺》2024年第19期60-66,共7页Hot Working Technology

基　　金：华中科技大学材料成形与模具技术国家重点实验室开放基金项目(P2019-003);重庆市科委基础研究与前沿探索项目(cstc2017jcyj A1654);重庆市研究生导师团队建设项目(JDDS TD2019007);重庆市研究生教育教学改革研究重点项目(yjg212027);重庆市研究生联合培养基地项目(JDAHPY JD2020032)。

摘　　要：为减少选区激光熔化成型试错次数并高效打印某铝合金潜水泵叶轮,使用ANSYS软件模拟不同摆放和支撑设计方案下叶轮SLM成型过程中的应力、变形和刮刀碰撞。通过对比确定叶轮正置为最优的设计方案,并进行了SLM成型。试制叶轮外表无裂纹和明显变形,内部无大孔隙。对叶轮进行激光扫描偏差分析,发现平均偏差为0.106mm。退火后,试棒抗拉强度可达257~264 MPa,断后伸长率为11%~12%。可见,叶轮SLM成型过程仿真可为同类结构铝合金零件SLM成型摆放与支撑设计提供有益参考。In order to reduce the trial number of selective laser melting(SLM)and efficiently print an aluminum alloy submersible pump impeller,ANSYS software was used to simulate the stress,deformation and scraper collision in SLM forming process under different placement and support design schemes.By comparison,the impeller position-placement was determined as the optimal design scheme and the SLM forming was performed.There is no crack and obvious deformation on the surface of the trial-produced impeller,and no large pores in the inner part.The deviation analysis of the impeller was carried out by using laser scanning,it was found that that the maximum average deviation was 0.106 mm.After annealing,the tensile strength of the test rod can reach 257-264 MPa,and the elongation after fracture is 11%-12%.The simulation of SLM forming process of impeller can provide a useful reference for SLM forming layout and support design of aluminum alloy parts with similar structural characteristics.

关 键 词：潜水泵叶轮 铝合金 选区激光熔化 摆放与支撑 

分 类 号：TG456.7[金属学及工艺—焊接] TG665