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铝合金叶轮SLM成型摆放及支撑方案仿真与实验

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

submersible pump impelleraluminum alloyselective laser melting(SLM)placement and support

亢红叶、龚海军、张梦祥、张旸、段虎明、唐刚志、张继祥

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重庆交通大学机电与车辆工程学院,重庆 400074

重庆机电增材制造有限公司,重庆 401336

潜水泵叶轮 铝合金 选区激光熔化 摆放与支撑

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重庆市科委基础研究与前沿探索项目重庆市研究生导师团队建设项目重庆市研究生教育教学改革研究重点项目重庆市研究生联合培养基地项目

P2019-003cstc2017jcyjA1654JDDSTD2019007yjg212027JDAHPYJD2020032

2024

10.14158/j.cnki.1001-3814.20222187

热加工工艺
中国船舶重工集团公司热加工工艺研究所 中国造船工程学会船舶材料学术委员会

热加工工艺

CSTPCD北大核心
影响因子：0.55
ISSN：1001-3814
年,卷(期)：2024.53(19)