Defect Repair Of Castings

Through the repair results of several traditional welding repair processes on the defects of machine tool castings, the reasons for the poor repair results of machine tool castings are analyzed. Through the research on the repairing results of the casting defect repairing machine on the machine tool castings, a feasible new technology and process for repairing the machine tool castings are determined. The casting defect repair machine is used to repair the defects of the casting. During the repair process, the casting is free of temperature rise, deformation, crack generation, dense metal at the welding repair point, hard spot generation and annealing, and any mechanical processing can be carried out. The selection of repair materials is not restricted by materials. Through the selection of different materials, the performance, color and parent body of the welding repair point can be unified. The filler material and the parent material are metallurgically combined, with high bonding strength and no falling off. The quality of the weld repair meets the quality inspection standard of the casting products, and is a new technology worthy of extensive promotion. However, the welding repair scope of casting defect repair machine is: Φ 1.5- Φ In the process of repeated melting and accumulation of 1.2mm weld repair points, the repair efficiency is the only factor restricting its wide application in the process of large-area defect repair. For the large defects of machine tool castings, the composite application of traditional welding repair process and casting defect repair machine is recommended.