Machining method for controlling tufftriding deformation of marine diesel engine roller bushing

• Main Authors: ZHANG PENG, ZHANG XIAOYUN, YU YANFENG
• Format: Patent
• Language: Chinese; English
• Published: 15.09.2023
• Subjects: COMBINED OPERATIONS; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GRINDING; MACHINE TOOLS; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; POLISHING; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention provides a machining method for controlling tufftriding deformation of a marine diesel engine roller bushing, and belongs to the technical field of machining. The method is a machining method for the roller bushing with the material being 30CrMoA, the requirement for an inner hole being phi 25.08 (+ 0.02) mm and the requirement for an outer circle being phi 36 (+ 0.01-0.02) mm. The method specifically comprises the following steps that blanking is conducted; rough turning and hardening and tempering; turning inner and outer circles; drilling holes; the inner hole of the roller bushing is processed according to the working procedures of fine boring of the inner hole, honing of the inner hole, plane grinding and grinding of the inner hole; outer circle finish machining is conducted, specifically, the outer circle of the roller bushing is treated according to the procedures of outer circle accurate grinding and outer circle grinding; tufftriding; and grinding the inner hole and the outer circle. On