Defect repair of machine tool castings: through the repair results of several traditional welding repair methods at the defects of the machine tool castings, the reasons for the poor repair results of machine tool castings are analyzed. Through the research on the repair results of the casting defect repair machine in the machine tool castings, a new and practical repair technology and process for the machine tool castings are determined.
The defect repairing machine is used to repair the defects of castings. During the repair process, the castings do not increase in temperature, no deformation, no cracks are generated, the metal in welding repair points is dense, no hard spots, no annealing, and any machining can be performed. The selection of filler materials is not limited by the material. The selection of different materials for the material can achieve the unity of welding point performance, color, and matrix.
The supplement material and the parent metallurgical combination have high bonding strength and do not produce the quality of the shedding welding repair quality in conformity with the quality inspection standards of the casting product. It is a new technology worthy of widespread promotion.
However, the welding repair range of the casting defect repairing machine is the process of repeated melting and accumulation of the welding point of Φ1.5-Φ1.2mm. In the process of large-area defect repair, the repair efficiency is the only factor restricting its widespread application. For the large defects of machine tool castings, it is recommended that the traditional welding repair process be used in combination with the casting defect repair machine