Sintering-deforming-prevention hollow structure differential mechanism shell machining method

The invention discloses a sintering-deforming-prevention hollow structure differential mechanism shell machining method, and belongs to the technical field of car transmission mechanisms. When a differential mechanism shell structure is designed, a supporting column is mounted in an area prone to deforming in a hollow cavity of a differential mechanism shell, the two ends of the supporting columnare in contact connection with the side walls of the hollow cavity, through a metal injection molding machine, the differential mechanism shell with the supporting column is formed through injection,the differential mechanism shell obtained after injection molding is fed into a vacuum furnace through putting and degreasing operation to be sintered, finally, the supporting column in the hollow cavity of the differential mechanism shell after injection molding is cut off, and the supporting column is used for supporting the side wall, pone to deforming, of the hollow cavity. Therefore, it can be ensured that when a diff