摘要
通过Simufact Additive软件模拟了涡轮导向器激光选区熔化成形过程,分析了涡轮导向器在成形、热处理、基板分离、支撑去除过程中的应力应变分布和尺寸变化情况。利用LIM-X260激光选区熔化设备开展了涡轮导向器的成形试验,采用三维扫描仪检测了零件最终的尺寸精度。结果表明:成形的涡轮导向器未出现裂纹、未熔合缺陷;零件实测变形量与数值模拟结果趋势一致,最大变形区域位于零件外环中部厚壁和顶部薄壁区域;受到支撑的影响,涡轮导向器叶片实际尺寸与模拟结果偏差较大。最后,基于本研究展望了涡轮导向器类零件提高成形质量的研究方向。
The selective laser melting forming process of turbine guide has been simulated by Simufact Additive software.The stress and strain distribution and size change of turbine guide in the process of forming,heat treatment,substrate cutting and support removal have been analyzed.The forming experiment of the turbine guide has been carried out by using the LIM-X260 laser selective melting equipment,and the final dimensional accuracy of the parts has been detected by a three-dimensional scanner.The analysis results show that there are no cracks and incomplete fusion defects in the formed turbine guider.The measured deformation of the part is consistent with the trend of the numerical simulation results,and the maximum deformation area is located in the thinnest and thickest area of the outer ring of the part.Affected by the support,the actual sizes of the turbine guide blades differ greatly from the simulation results.Finally,based on this research,the research direction of improving the forming quality of turbine guide parts has been prospected.
作者
吴代建
权国政
白晶斐
门正兴
李涛
徐蕾
Wu Daijian;Quan Guozheng;Bai Jingfei;Men Zhengxing;Li Tao;Xu Lei
出处
《大型铸锻件》
2023年第4期6-9,19,共5页
Heavy Casting and Forging
基金
四川省科技计划重点研发项目(2022YFG0214、2023YFG0168)
德阳市科技计划重点研发项目(2022GZ012)。
关键词
涡轮导向器
激光选区熔化
叶片
尺寸偏差
数值模拟分析
turbine guides
selective laser melting
blades
dimensional deviations
numerical simulation analysis
