High precision cutting methods are divided into: laser cutting machine and CNC plasma cutting machine. The gap between laser cutting machine and plasma cutting is mainly in two aspects of cutting thickness and operating cost.
In general, plasma cutting surface rough, cutting thick plate has the advantage, and the price is low, laser cutting cutting surface smooth, plasma is rough, need to send people to repair the burr. Laser cutting can cut more than 3MM heavy plate, plasma can cut more than 8MM heavy plate. Laser cutting surface smooth, compensation small precision is relatively high, a little more expensive. Plasma is about a third cheaper than laser. The cutting surface of fine plasma is thinner than that of laser, especially the Japanese equipment. The disadvantage of plasma is the slit width, about 3MM. Plasma is the most important part of the power supply, equivalent to the laser cutting machine, plasma power consumption is quite severe, common spare parts electrode protection nozzle is also quite expensive, especially electrode drilling is very expensive electrode.
Plasma cutting machine is a new type of thermal cutting equipment, its working principle is compressed air as the working gas, with high temperature and high speed plasma arc as the heat source, will be cut metal local melting, and at the same time with high speed airflow will have melted metal blown away, forming a narrow slit. Plasma cutting machine can be used for stainless steel, aluminum, copper, cast iron, carbon steel and other metal materials cutting, not only cutting speed, slit narrow, incision smooth heat affected area is small, the workpiece deformation is low, simple operation, and has significant energy saving effect. Ion cutting machine is suitable for all kinds of machinery, metal structure manufacturing, installation and maintenance, for medium and thin plate cutting, opening, digging, opening groove cutting processing. Plasma cutting is a processing method that uses the heat of high temperature plasma arc to locally melt (and evaporate) the metal of the workpiece incision, and eliminates the molten metal by the momentum of high speed plasma to form the incision. Plasma cutting machine is widely used in automobiles, locomotives, pressure vessels, chemical machinery, nuclear industry, general machinery, construction machinery, steel structure and other industries!
Laser cutting is the use of high power density laser beam scanning material surface, in a very short time to heat the material to thousands of degrees Celsius, so that the material melting or gasification, and then high pressure gas will melt or gasification material from the slit blown away, to achieve the purpose of cutting material. Laser cutting, due to the invisible beam of light instead of the traditional mechanical knife, laser head of the mechanical part of the work without contact, in the work will not cause scratches on the working surface; Laser cutting speed, smooth incision, generally without subsequent processing; Small cutting heat affected zone, small plate deformation, narrow slit (0.1mm~0.3mm); Incision without mechanical stress, no shear burr; High machining accuracy, good repeatability, no damage to the surface of the material; CNC programming, can process arbitrary plane graph, can cut the whole board with a large format, no need to open mold, economical and time-saving.
Post time: Aug-28-2021