Application Research of Laser Cladding Remanufacturing Technology to Repair Worn Mold

Abstract

In recent years, with the development of laser technology and the transformation and upgrading of domestic manufacturing industry, the application of laser cladding remanufacturing technology is increasing. Mold as a common equipment of industrial production, its service life directly affects the production cost and efficiency of the enterprise.Wear is a common form of mold failure. In order to restore the performance of the mold and prolong the service life of the mold, The laser cladding remanufacturing technology to repair worn mold is studied in this paper. Firstly, the laser cladding remanufacturing is outlined, and the main technological process of the mold laser cladding remanufacturing is introduced. Then, taking 45 mold steel as an example, based on the analysis of the die material and weldability, the laser cladding material is selected reasonably, the mold is remanufactured by the experimental method, and the metallographic microscope analysis, hardness test and wear test are carried out.The research results show that the average hardness of the worn mold surface is about 55.5HRC after being remanufactured by laser cladding, and the wear resistance is doubled, and a good application effect has been achieved. Therefore, the laser cladding remanufacturing technology has a broad application prospect in repairing worn mold.