The hand-held laser welding machine uses laser energy to achieve welding. It is a new type of machine that replaces traditional welding equipment. Compared with traditional laser welding machines, the welding speed is more convenient and faster. This article introduces the welding methods and characteristics of hand-held laser welding machines. .
Welding method of handheld laser welding machine
1. Resistance welding
When using a hand-held laser welding machine to weld thin metal parts, between the two electrodes, a large current is used to melt the electrode to contact the surface, resistance welding is welded through both sides of the joint, and laser welding is only performed in one direction, that is, through the resistance heat of the workpiece For welding, the electrodes used in resistance welding need to be held frequently to remove oxides and bonded metal on the workpiece, and laser welding does not touch the workpiece when joining thin metals. In addition, it is possible to access areas that are difficult to weld with ordinary welding, and the welding speed is also fast.
2. Argon arc welding
It is often used for welding thin workpieces with non-consumable electrodes and shielding gas, but the heat input is much larger than laser welding, the welding speed is slow, and the workpiece is easily deformed.
4. Plasma arc welding
Plasma arc welding is similar to argon arc welding, with a greater melting depth and faster argon arc welding, but not as good as laser welding. However, in order to increase the arc temperature and energy density, solder will generate a compressed arc.
5. Electron beam welding
Accelerated high-energy-density electron flow hits the workpiece for deep melting and welding. The surface of the workpiece is densely piled up, resulting in a "small hole" effect. Electron beam welding has problems with X-rays and magnetic deflection. If the electrons are charged, they will be affected by the deflection of the magnetic field, so electron beam welders need magnetic treatment before welding. Laser welding does not undergo magnetic treatment before welding the vacuum chamber and the workpiece, and can be carried out in the atmosphere, and there is no problem with X-rays. X-rays are particularly strong under high pressure, so the operator must be protected. Therefore, it can be operated online in the production line, and magnetic materials can also be welded.
Features of handheld laser welding machine
1. High welding efficiency
The welding speed is fast, more than twice that of argon arc welding, which can realize the doubling of production benefits on the basis of saving welding workers.
2. No welding consumables
The handheld laser welding machine is easy to learn and use, and the operator can easily realize welding without the effect of fixed-point station. There are no consumables for welding, which reduces the cost of materials in production and processing, and welding can be easily completed without filler wire during operation.
3. High energy density
With higher energy density, it can achieve better welding efficiency, continuous welding, and reduce subsequent grinding processes. The photoelectric conversion efficiency of the laser is as high as 30%, and the energy consumption is lower.
The above is the introduction of the welding method and characteristics of the handheld laser welding machine. Laser welding machines are widely used in the electronics industry. If you have other questions about laser welding machines, please call or leave a message.
