Views: 2 Author: DURMAPRESS Publish Time: 2021-08-06 Origin: DURMAPRESS
With the development of industry, handheld fiber laser welding machine price technology is constantly researched and innovated. Let's take a look at the application information of laser wire feed welding technology:
Principle and advantage of laser wire feed welding
Laser wire feeding welding is divided into laser brazing welding and laser wire filling welding.
Laser brazing refers to the use of melting point lower than or similar to the base metal metal material as a filler metal, with a laser heat source to weld and solder to solder melting point above. A method of welding at a temperature below the base metal, using a liquid filler metal to wet the base metal, fill the joint gap and diffuse with the base metal to achieve the connection handheld fiber laser welding machine.
Laser wire filling welding:
It refers to the use of welding wire as the filler metal, with a laser heat source will weld and fill the metal to the molten state, thus forming welding joint welding method. Laser wire feeding welding system mainly includes single wavelength wire feeding welding system, double wavelength composite wire feeding welding system and swing wire feeding welding system.
Advantages of single wavelength wire feed welding system:
1. Concentrated energy, small thermal deformation, large depth to width ratio.
2, effectively prevent welding crack.
3. High welding efficiency.
4, low requirements for workpiece tooling.
With the development of society, the depletion of traditional energy, and people's requirements for the environment are becoming higher and higher. Body weight reduction to reduce energy consumption and the use of new energy has become an inevitable development, requiring more low-density materials: such as aluminum alloy, magnesium alloy, titanium alloy are applied to the body structure, so as to achieve the purpose of reducing the weight of the body. The above car body parts samples involve carbon steel, cast steel, cold-rolled plate, deformed aluminum alloy, cast aluminum alloy and copper alloy. According to different needs, copper alloy welding wire should be filled.
Carbon steel wire and aluminum alloy wire.
Advantages of dual-wavelength wire feeding welding system:
1. Concentrated energy, small thermal deformation, large depth to width ratio.
2, effectively prevent welding crack.
3, weld porosity is less, high strength.
4. The appearance of the weld is smooth and smooth.
5. High welding efficiency.
6, low requirements for workpiece tooling.
Advantages of swing wire feeding welding system:
1. Concentrated energy, small thermal deformation, large depth to width ratio.
2, effectively prevent welding crack.
3, high weld quality, weld tracking, focal length automatic compensation.
4, laser beam is easy to guide, focus, realize a direction change.
5, high production efficiency and automation.
6, low requirements for workpiece tooling.
The fluctuation of parts and the error of fixture often make laser brazing more difficult, and various welding defects follow, resulting in the debugging process of laser welding is very difficult. However, the system has many advantages: weld tracking and auto-focus compensation, easy to guide and focus the laser beam, and the ability to weld arbitrarily complex shapes
High dynamic attitude, fast welding speed, high production efficiency, stable and reliable processing quality. Therefore, the system has great advantages in BIW laser welding. Superalloy and stainless steel, copper alloy and stainless steel wire should be filled according to the corresponding requirements.