A laser welding machine is equipment used to weld metals using a laser.
Based on their working mode, laser welding machines can be divided into several types, such as portable laser welding equipment (also known as laser mold welding machines), automatic laser welding machines, jewelry laser welding, laser welding machines, optical fiber transmission. laser welding machines, galvanometer welding machines and manual welding machines.
In addition to these commonly used types, there are also some specialized laser welding equipment available on the market. For example, laser welding machines with sensors, laser welding equipment for silicon steel sheets, and laser welding equipment with keyboard are some of the special types of laser welding machines.
Laser welding involves using high-energy laser pulses to heat a small area of a material. The laser energy is absorbed by the material, causing internal diffusion through heat transfer, resulting in the melting of the material and the formation of a specific molten pool.
This welding technique is relatively new and is mainly used to weld thin-walled materials and precision parts. Laser welding can be used for various types of welding, including spot welding, butt welding, lap welding and seal welding.
It has the following advantages:
- Depth-width relationship;
- Small weld width;
- Small zone affected by heat and deformation;
- Fast welding speed;
- The weld is flat and beautiful;
- No treatment or simple treatment after welding;
- High welding quality; No pores;
- Precise control;
- Small focus point;
- High positioning accuracy;
- Easy automation.
So how should we use the laser welding machine safely and correctly?
Analysis of precautions for safe and correct use of the laser welding machine:
1. Preparation before starting the laser welding machine
- Check whether the power supply and water circulation of the laser welding machine are normal;
- Check whether the gas connection of the machine's equipment is normal;
- Check whether the surface of the machine is free from dust, stains, oil stains, etc.
2. Laser welding machine on/off
Laser welding machine startup:
- Turn on the power supply and turn on the main switch;
- Turn on the water fountain and the laser generator in sequence;
- Open the argon valve and adjust the gas flow;
- Enter the job parameters to be currently executed;
- Carry out welding operations.
Laser welding machine shutdown:
- Exit the program and turn off the laser generator;
- Turn off the dust remover, drinking fountain and other equipment in sequence;
- Close the argon cylinder valve;
- Turn off the main power switch.
3. Precautions for safe use of laser welding machine
During operation, if an emergency occurs such as water leakage or abnormal laser sound, press the emergency stop immediately and turn off the power supply quickly.
Before operating the laser welding machine, turn on the external water circulation switch of the laser welding machine.
It is strictly prohibited to start the machine if the cooling system fails, as the laser system adopts water cooling mode and the laser power supply adopts air cooling mode.
Do not disassemble any part of the machine without authorization.
Do not weld when the machine's safety door is open.
To avoid eye injury, it is prohibited to look directly at the laser or reflect the laser with your eyes when the laser is working. Instead, look at the laser welding joint with your eyes.
To prevent fire and explosion, do not place flammable and explosive materials in the path of the laser light or where the laser beam can be irradiated.
During operation, the circuit is in a state of high voltage and strong current. Therefore, it is strictly prohibited to touch any circuit components of the machine during operation.
Only trained personnel are authorized to operate this machine.
The laser welding machine has a high degree of automation and a simple welding process. The non-contact operation method meets the requirements of cleanliness and environmental protection.
Using laser welding machine to process parts can significantly improve work efficiency. The finished parts have beautiful appearance, small weldment, large welding depth and high welding quality.
The laser welding machine is widely used in denture processing, keyboard welding, silicon steel sheet welding, sensor welding, battery seal cover welding and other applications.
