Cladding process: laser cladding is supplied by way of cladding materials, which can be broadly divided into two categories, namely, pre-synchronized laser cladding and laser cladding. Laser cladding preset cladding material is placed on the substrate surface prior to cladding portion, and scanning the laser beam irradiation melts cladding material is added in the form of powder, wire, plate, powder form which is most commonly used. Synchronized laser cladding cladding material sucked directly into the laser beam, so that the feed and cladding simultaneously. Cladding material mainly in powder form is also fed, and some also used to synchronize the wire feed or plate.
Laser Cladding preset main process is: the substrate surface pretreatment → preset cladding cladding materials →Preheat → laser melting → after heat treatment. The main synchronous laser cladding process is: the substrate surface pretreatment → send cladding material laser melting → after heat treatment. By the process, and laser cladding process is mainly related to the substrate surface pretreatment methods, feeding methods cladding materials, preheating and after heat treatment.
Laser high power density, the laser processing system under NC control in designated parts of the surface of the substrate to form a thin layer of micro-melting, self-fluxing powder while adding certain ingredients, such as nickel, cobalt, and iron-based alloys, so that they are evenly spread in the molten state in the part surface and a predetermined thickness, a good metallurgical bond with the matrix metal micro-melting material, and only a small inter- dilution, in the subsequent rapid solidification process, part formed on the surface of the substrate is completely different, having a predetermined function of the special properties of the cladding layer of material, which can completely change the surface properties of the material, the surface can be obtained inexpensive high wear and corrosion resistance, high temperature properties. The process can repair holes and cracks in the surface of the material , you can restore worn parts geometry and performance.
Post time: Aug-30-2019