Research on casting process of machine tool headstock based on ProCAST
The machine tool spindle box has a complex structure,large wall thickness differences,and high quality requirements.In this paper,from the perspective of smooth filling and sequential solidification,the process of the headstock is studied,a semi-closed bottom pouring system is designed,and the flow field of the side runner and the bottom runner was compared and analyzed using Pro-CAST software.By adding a buffer runner to eliminate the flow defect of the bottom runner,and design the riser and chilled iron scheme,the temperature field of sequential solidification is realized,and the shrinkage and porosity ware avoided.