Defect repair on machine tool castings: The results of repairing defects on machine tool castings by several traditional welding repair processes are analyzed to determine the reasons for the poor repair results on machine tool castings. By studying the repair results of casting defect repair machines in machine tool castings, a new technology and its process for repairing on machine tool castings is determined to be indeed feasible.
Using the casting defect repair machine to repair the defects of the casting, the casting in the repair process, no heating, no deformation, no crack generation, dense metal welding patch point, no hard spot, no annealing phenomenon, can be any mechanical processing. The selection of patching material is not constrained by the material, through the selection of different materials of patching material, the performance and color of the welded spot can be unified with that of the mother body.
The metallurgical bonding between the patch and the parent body, with high bonding strength and no shedding, is a new technology worthy of widespread promotion as the quality of the patch meets the quality inspection standards of the casting products.
However, the welding patching range of casting defect repair machine is Φ1.5-Φ1.2mm welding patch repeatedly melting and accumulating process, in the process of large area defect repair, the repair efficiency is the only factor that restricts its widespread application. For large defects of machine tool castings, the composite application of traditional welding repair process and casting defect repair machine is recommended.
