In recent years, laser equipment has been used more and more widely in the field of industrial processing, and there are many types, mainly including laser welding machine, laser marking machine, laser cutting machine and other types. Because the names are too similar, many friends are often confused about laser welding machines and laser cutting machines. So what is the difference between laser welding machines and laser cutting machines?
1、 What is a laser cutting machine?
The laser cutting machine is a horizontal laser beam emitted by the laser, which is transformed into a vertically downward laser beam through a 45 ° total mirror, and then focused by a lens, and converges into a tiny spot at the focal point. The laser power density at the focal point is as high as 10 ^ 6~10 ^ 9 W/cm ^ 2.
The workpiece at its focus is irradiated by a high power density laser spot, which will produce a local high temperature of more than 10000 ° C, which will vaporize the workpiece instantaneously, and then blow away the vaporized metal with auxiliary cutting gas, so as to cut the workpiece into a small hole. With the movement of the CNC machine tool, countless small holes are connected to form the shape to be cut. Because the frequency of laser cutting is very high, the connection of each small hole is very smooth, and the finished product is very high.
2、 What is a laser welding machine?
Laser welding machine uses high-energy laser pulse to locally heat the material in a small area. The energy radiated by the laser is directed to the internal diffusion of the material through heat transfer, and the material is melted to form a specific molten pool.
Laser welding machine is a new type of welding method, mainly for the welding of thin-walled materials and precision parts, which can realize spot welding, butt welding, overlap welding, seal welding, etc., with high depth-width ratio, small weld width, small heat affected zone, small deformation, fast welding speed, flat and beautiful weld, no treatment or simple treatment after welding, high weld quality, no pores, precise control, small focus point, high positioning accuracy, Easy to realize automation.
3、 What is the difference between laser welding machine and laser cutting machine?
It is used to weld metal, while laser cutting machine is used to cut handicrafts.
The principle of laser welding machine is similar to that of cutting machine, but the purpose is the opposite. Although it is difficult to determine the specific difference between the internal parameters of the two in terms of their definitions and indirectness, according to experience, the two can actually achieve symbiosis on a machine, but the programming is slightly different, and the laser power used is different.