APPLICATION OF COMBINED PROCESSING METHODS FOR THE REPAIR OF CAST IRON CAMS
The paper presents the technological recommendations to restore worn surfaces of large spatial iron cams based on the application of thermal spraying copper-bearing coatings and finishing treatment by surface plastic deformation. It is shown that the implementation of the combined methods of surface treatment ensures the recovery of the desired geometric accuracy of the cam slot, raising the operational properties of the surface layer of the cam working zone due to the hardening of the coating material by 15 - 20 % and to achieve surface roughness Ra is reduced within 0.2... 0.3 um. coating with porosity of from 2 to 5 %. Considered technological features reconditioning cast iron parts.