Because of the high price and high precision of a laser, an energy source, the laser welding market has long been promoting more high-end precision welding and other welding equipment. However, due to the increase in laser source production, the price of laser sources continues to decrease. The price of handheld laser welding is also declining, and it is gradually occupying the entire welding market. The laser welding system provided by Riselaser provides more welding equipment possibilities, including freely customizable welding heads, laser sources, water chillers, etc. Let us understand the composition of laser welding machines today
1. Overall machine structure and working principle
Handheld continuous laser welding: It is mainly composed of a laser, welding system, handheld laser gun, and cooling system. It is a new generation of semiconductor-pumped pulse fiber laser in the near-infrared spectrum range. It has good beam quality, fiber output, and high electro-optical conversion. Efficiency and other characteristics, it is mainly used for welding thin-walled materials and rapid welding. The welding process is of heat conduction type, that is, laser radiation heats the surface of the workpiece, and the surface heat diffuses to the interior through heat conduction. By controlling the width, energy, peak power, and repetition frequency of the laser pulse and other parameters to melt the workpiece and form a specific molten pool. Due to its unique characteristics, it has been successfully used in the welding of micro and small parts.
1.1 Laser welding head
The laser welding head adopts QBH fiber optic handheld laser welding head. Its characteristics are as follows:
1. The unique laser control box has three light emission modes: QCW (quasi-continuous), PWM (pulse), and CW (continuous).
2. It adopts an ergonomic design, and compact structure, and is easy to use.
3. The welding head is equipped with an air blow control and a security lock.
Gun head air nozzle: The appropriate air nozzle can be replaced according to different angles. The air nozzle can adjust the distance from the light spot to the metal surface. Can make the welding surface more integrated and smoother in appearance.
Air inlet and water inlet: Two 4-centimeter tubes are connected to the water inlet and outlet. Make sure that the focusing mirror inside the gun body maintains a certain temperature to make the welding effect more stable.
QBH connector: Special connector for laser. Disassembly is prohibited for non-professionals.
2. Introduction to main functions
1. Smart internal design and a good interactive control system expand the tolerance range of processed parts and weld width, solve the disadvantage of small light spots, and achieve better weld formation.
2. The shape is light and adopts a body engineering design method, which makes it comfortable to hold; it can be easily controlled with one hand and the operation is simple and easy to use.
3. It has multiple safety alarms and automatically locks the light after removing the workpiece, which is highly safe.
4. The welds are beautiful, and fast, with no consumables, no weld marks, no discoloration, and no need for later polishing.
5. Various angle nozzles can be configured to meet the welding needs of different products.
3. Main technical features
1. The handheld laser welding machine uses a handheld welding gun to replace the previously fixed light path, subverting the previous working mode of the laser welding machine.
2. The precise positioning of the red light makes it easy to observe, and the operation is simple. You can weld immediately without spending a lot of money to hire a welding master.
3. Compared with fully automatic equipment deployment, handheld laser welding machines have lower production efficiency. However, for production workshops engaged in small-scale processing or non-large-scale welding, manual laser welding is the best choice. There is no need to set up equipment to deploy the welding station, and it takes up little space. The important point is that the welding products of small workshops are diversified and the product shapes are flexible. Manual laser welding can fully meet the needs of this kind of production and has better compliance.
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