Laser welding machine, also often called laser welding machine and laser welding machine, is one of the commonly used laser processing equipment. Its principle is to use high-energy laser pulses to locally heat the material in a small area, and the energy of laser radiation is conducted through heat Diffusing into the material, melting the material to form a specific molten pool to achieve the purpose of welding. Small heat-affected area, beautiful weld seam, high welding efficiency, fast welding speed, and automatic welding are considered as the next development focus of the laser industry.

1. Classification of laser welding machine:

At present, laser welding machines are mainly classified according to 4 methods:

1. According to the laser output energy mode, it can be divided into: pulse laser welding, continuous laser welding

2. According to the power density of the laser spot after focusing, it can be divided into: heat conduction laser welding, deep penetration welding

3. According to the laser, it can be divided into: lamp pump, fiber, YAG, fiber transmission, etc.

4. According to the nature and form of light, it can be divided into hard light path and soft light path

2. Advantages of laser welding machine:

1. High welding seam quality: the products welded by laser welding machine are smooth and beautiful, without pores.

2. Micro-welding can be performed: the laser beam can be focused to obtain a small spot, because it is not affected by the magnetic field and can be accurately positioned, it can be micro-welded.

3. It can be welded under special conditions: the laser welding machine is a non-contact welding machine. Can be welded at room temperature or closed conditions.

4. Fast welding speed: The laser beam under computer control can move at a high speed, and the welding process can be completed in a few seconds.

5. Strong flexibility: different waveforms can be set to match welding parameters and welding requirements to achieve excellent welding results.

6. Good toughness of the material after welding: laser welding is a welding method, and the toughness of the material after welding is equivalent to the parent material.

7. Simple operation: The operator only needs to control the computer software to drive the laser welding machine, which can complete automatic or semi-automatic spot welding, butt welding, superimposition welding, sealing welding, or for complex plane straight lines, arcs and arbitrary Track welding.

8. Environmental protection: non-contact coding, no consumables, no pollution, no harmful substances.

3. Safety matters needing attention when using laser welding machine:

The laser used in the laser welding machine belongs to the four types of lasers. The power density of the laser is very large. If there is no protection or improper protection, it will cause direct or indirect damage to human tissues (such as eyes, skin, etc.). In order to ensure the safety and protection when using the laser welding machine, Foshan Fulan Laser reminds everyone to pay attention to the following 3 safety matters when using laser welding:

1. Fire safety

① It is forbidden to stack flammable and explosive materials around the laser welding machine.

②. Do not place flammable and explosive materials on the optical path or where the laser beam may be irradiated. Because the laser power of the laser welding machine is relatively large, if the laser beam irradiates flammable and explosive materials, it may cause fire or explosion.

③ Once the machine catches fire, be sure to cut off all power and use carbon dioxide or dry powder fire extinguishers to extinguish the fire; or use dry sand to extinguish the flame.

2. Laser radiation safety

The laser welding machine series produced by Foshan Fulan Laser Technology Co., Ltd. all adopt a closed laser light path design, which can effectively prevent the leakage of laser radiation.

Foshan Fulan Laser Warm reminder: Because the laser power density of the laser welding machine welding is very high, the beam is very thin, it is easy to cause damage to human eyes and skin, so it is strictly forbidden to look directly into the laser beam during the startup process. To prevent eye damage. When there is laser output, the operator must wear laser protective glasses.

3. Electrical safety

① Please disconnect the power supply when the equipment does not need to work.

② If it is a pulse laser welding machine, the lamp tube needs to be replaced every 4 months or so. When replacing the lamp tube, the power supply of the equipment must be cut off.

③. Do not short-circuit or ground the laser power output lead.

④ The protective ground wire of the power supply must have a good external grounding.

The laser welding machine produced by Foshan Fulan Laser Technology Co., Ltd. (supports customization) is currently mainly used for welding various metal materials. It can realize spot welding, butt welding, stitch welding, sealing welding, etc., with high aspect ratio, small weld width, small heat-affected zone, small deformation, fast welding speed, flat weld without air holes, no need to handle or just need to be processed after welding Simple processing, precise control, small focus spot, high positioning accuracy, and automatic laser welding can be realized.