Research on F orming of Thin-walled Parts Using Pulsed Laser Selective Melting
Author of the article:JIN Qiangqiang;ZHANG Jun;YUAN Zijun
Author's Workplace：School of Electronic Science and Applied Physics,Hefei University of Technology,Hefei 230009,China
Key Words：selective laser melting pulsed laser inclined thin-walled parts extreme angle limit angle
Abstract：
In order to improve the ability of selective laser melting(SLM)to directly form thin-walled parts,the effects of forming process parameters such as pulse time,laser power,and scanning speed on single melt channels were discussed through experiments.In the self-developed selective laser melting molding equipment,optimized pulsed laser is used to form inclined thin-walled parts with different angles.The results show that reducing the pulse action time is beneficial to improve the accuracy of thin-walled workpieces and reduce the effect of heat accumulation on thin-walled workpieces.Pulsed laser can significantly improve the“bulge”problem when forming thin-walled mesh parts.Finally,the arc-shaped thin-walled parts with a forming angle ranging from 0 to 90°are discussed,which provides a certain reference for SLM to form arc-shaped workpieces at any angle.
