Numerically controlled laser oxidizing fusion cutting machine with auxiliary gases

Abstract

The invention provides an electronically controlled laser oxidizing fusion cutting machine with auxiliary gases. The cutting machine is characterized in that a control unit adopts alternating current to load electricity to realize the functions of connecting, identifying and controlling load electrical appliances; oxygen or other active gases are adopted to carry out fusion cutting instead of the inert gases; the auxiliary gases adopt blast air manufactured by a compressor; the materials are heated by high power and density laser beams so that the speed at which the surface temperature of the materials rises to the boiling temperature is high enough to avoid melting caused by heat conduction; the cut materials are ignited under irradiation of the laser beams and carry out drastic chemical reaction with oxygen to generate more heat sources; and a part of materials are vaporized into vapor and disappear, and the other part of materials used as ejecta are absorbed back by the auxiliary gas flow from the bottoms of cutting joints. The cutting machine has the following beneficial effects: the laser cutting joints are fine; the laser cutting surface is smooth; the laser cutting speed is high; the heat distortion is slight; laser cutting can avoid contact with the surfaces of the materials; and the cutting machine is suitable for processing of large products, saves materials, and is applied to sheet metal processing in relevant industries such as heavy industry, light industry, medical treatment industry and the like, cutting forming of rotors, stators and blades, manufacturing of various chains and parts in the automobile industry, advertisement decoration, handicraft manufacturing and the like.