Application of SLS Forming Technology in Investment Casting of Titanium Alloy
Author of the article:YANG Jiajing;WANG Taoliang;CUI Like;LYU Chang
Author's Workplace：Luoyang Pengqi Industrial Co.,Ltd.,Luoyang 471000,China
Key Words：titanium alloy SLS laser sintering technology investment precision casting
Abstract：Single or small batch titanium alloy impeller was formed by SLS laser sintering model and investment mold precision casting.The preparation of impeller model,mold shell preparation,dewaxing,melting and pouring were studied.The results show that the model of laser sintering has a short time and low cost.There are no cracks,cold insulation,chemical sand and other defects on the surface of castings,and no cracks and slag defects inside.The chemical composition of the casting is up to standard.In the trial production stage,compared with the traditional process,SLS laser sintering has a shorter investment mold preparation time and a lower production cost.
