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Laser welding machine is a laser welding equipment that couples a high-energy laser beam into an optical fiber, transmits it over a long distance, collimates it into parallel light through a collimating mirror, and then focuses on the workpiece for welding. So what are the characteristics of the welding technology of the laser welding machine?

The working mode of the hand-held laser welding machine, hand-held welding, is flexible and convenient, and the welding distance is longer. Replace the previously fixed light path with a hand-held welding torch. The hand-held fiber laser welding machine is mainly used for laser welding of long-distance and large workpieces. The heat affected zone is small during welding, which will not cause deformation, blackening and traces on the back of the workpiece. The welding depth is large, the welding is firm, and the melting is sufficient. There is no unevenness at the joint between the convex part of the molten pool and the substrate!

Handheld laser welding machine has the advantages of simple operation, beautiful welding seam, fast welding speed and no consumables. When welding stainless steel sheet, iron plate, galvanized sheet and other metal materials, it can perfectly replace traditional argon arc welding, electric welding and other processes.

Advantages and disadvantages of handheld laser welding machine

Handheld laser welding machine can be widely used in complex and irregular welding processes in kitchen and bathroom cabinets, stair elevators, shelves, ovens, stainless steel door and window guardrails, power distribution boxes, stainless steel households and other industries.

The hand-held laser welding machine has a simple working method, flexible and convenient hand-held welding, and a longer welding distance.

high flexibility

Laser welding technology is the most advanced welding method in the field of processing. Compared with traditional welding technology, laser welding technology is non-contact welding. It does not require pressure during operation. The welding speed is fast, the efficiency is high, the depth is large, the residual stress is large, and the deformation is small. Small in size, laser welding technology can weld refractory materials such as high melting point metals, and even non-metallic materials such as ceramics and plexiglass, as well as special-shaped materials, with good effect and good flexibility. Flexible transmission non-contact welding for difficult-to-weld parts. The laser beam can realize the splitting of time and energy, and can process multiple beams at the same time, which provides conditions for more precise welding.

Difficult-to-weld materials can be welded

Laser welding is the use of very high energy density laser beams to melt materials. Laser welding machine has the advantages of fast welding speed, high strength, narrow weld seam, small heat affected zone, small workpiece deformation, less subsequent processing workload, and high flexibility. Advantage. Laser welding can not only weld ordinary carbon steel and stainless steel, but also weld materials that are difficult to weld by traditional welding, such as structural steel, aluminum, copper and other metals, and can weld various forms of welds.

Reduce labor costs

Since the heat input during laser welding is extremely low, the deformation after welding is very small, and a very beautiful welding effect can be achieved, so the subsequent processing volume of laser welding is very small, and the huge polishing and leveling process can be greatly reduced or eliminated. artificially. This is especially practical in today’s rising labor costs.

safer

The laser welding machine is carried out in a closed safety shield and is equipped with an automatic dust removal device, which not only ensures the health and safety of employees, but also maintains a clean and tidy working environment in the workshop.

What are the operation steps of laser welding machine?

1. First, make preparations before starting the laser welding machine, including: check the power supply of the laser welding machine and whether the water circulation is normal; check whether the gas connection of the equipment in the laser welding machine is normal; check whether the surface of the machine is free of dust, spots, oil, etc. .

2. After the laser welding machine is checked normally, it can be turned on, that is, turn on the power supply, turn on the main power switch; turn on the water cooler, laser generator, etc. in sequence; open the argon gas valve, and adjust the gas flow; working parameters; perform welding operations.

3. After the operation of the laser welding machine is completed, the last step is to shut down. First, exit the program and turn off the laser generator; turn off the dust remover, water cooler and other equipment in sequence; turn off the argon cylinder valve; turn off the main power switch.

What materials can laser welding machine weld?

laser welding machine can weld carbon steel, die steel, alloy steel, stainless steel, titanium, nickel, tin, copper, aluminum, chromium, niobium, gold, silver and other metals and their alloys, as well as steel, Kovar and other alloys. The welding between the same materials can also meet the laser welding between different steels.

Laser welding is the use of high-energy laser pulses to locally heat the material in a small area. The energy of the laser radiation diffuses into the interior of the material through heat conduction, and the material is melted to form a specific molten pool. It is a new type of welding method, mainly for the welding of thin-walled materials and precision parts, and can realize spot welding, butt welding, stitch welding, sealing welding, etc. Small deformation, fast welding speed, smooth and beautiful welding seam, no need or simple treatment after welding, high welding seam quality, no pores, precise control, small focusing spot, high positioning accuracy, and easy automation.

How does laser welding machine weld carbon steel?

Carbon steel is welded by laser welding machine, the welding effect is good, and the welding quality depends on the impurity content. In the case of carbon content greater than 0.25%, in order to obtain good welding quality. When steels with different carbon content are welded to each other, the welding torch can be biased towards low carbon materials to ensure the quality of the joint. Because the heating and cooling speed of laser welding machine is very fast, so when welding carbon steel. The higher the carbon content, the higher the susceptibility to weld cracks and nicks. Medium and high carbon steel and ordinary alloy steel can be laser welded well, but stress should be relieved to avoid cracking.