Welding and forging composite precise additive manufacturing process and equipment for forging die repair

• Main Authors: XIAO GUIQIAN, LU SHUN, ZHANG JIANSHENG, ZHANG YANCHENG, ZHOU JIE, PAN CHENGHAI, DONG XUGANG
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; CLADDING OR PLATING BY SOLDERING OR WELDING; COMBINED OPERATIONS; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; UNIVERSAL MACHINE TOOLS; WELDING; WORKING BY LASER BEAM

The invention discloses a welding-forging composite precise additive manufacturing process and equipment for forging die repair, and the process comprises the following steps: 1) carrying out finite element simulation on a service condition of a failure forging die, and determining a gradient material partition structure of the forging die according to a stress field and a temperature field of the forging die; (2) a material in a failure area of the forging die is removed, and a 3D model after the material in the failure area is removed is reconstructed; (3) Boolean operation is conducted on the reconstructed 3D model and a standard model, and a to-be-repaired target area 3D model is obtained; segmenting the to-be-repaired target area 3D model according to the gradient material partition structure to obtain a target 3D model partitioned according to the material; hierarchical slicing and welding and hammering track planning are carried out on the target 3D models of all the material partitions, and a robot in