Six advanced welding processes

With the continuous development of the welding industry, welding methods have become more and more abundant. Today I will show you a few advanced welding processes!

Laser welding: Laser radiation heats the surface to be processed, and the surface heat diffuses to the inside through heat conduction. By controlling the laser parameters such as the width, energy, peak power and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool. Laser welding technology is widely used in high-precision manufacturing fields such as automobiles, ships, airplanes, and high-speed railways. It has brought significant improvements to people's quality of life and has led the home appliance industry into the era of precision manufacturing.


Laser hybrid welding: It is the combination of laser beam welding and MIG welding technology to obtain the best welding effect, fast and weld bridging ability, and is the most advanced welding method currently. The advantages of laser hybrid welding are: fast speed, small thermal deformation, small heat-affected area, and ensure the metal structure and mechanical properties of the weld.


Friction stir welding: uses friction heat and plastic deformation heat as the welding heat source. The friction stir welding process involves a cylinder or other shape ( such as a threaded cylinder ) extending into the joint of the workpiece, and the high-speed rotation of the welding head causes it to rub against the welding workpiece material to make the connection part The material temperature rises and softens.


Electron beam welding: It is a method of welding using the heat generated by accelerated and focused electron beam bombardment of weldments placed in vacuum or non-vacuum.


Ultrasonic metal welding: It is a special method of using the mechanical vibration energy of ultrasonic frequency to connect the same metal or dissimilar metal.


Flash butt welding: The principle is to use a butt welder to make the two ends of the metal contact, through a low voltage strong current, after the metal is heated to a certain temperature and softened, the axial pressure upsetting is performed to form a butt welded joint.