Laser welding method
Resistance welding
It is used to weld thin metal parts, clamp the workpiece to be welded between two electrodes, and melt the surface of the electrode contacted by a large current, that is, the welding is carried out by product resistance heating.
Argon arc welding
Using non-consumable electrodes and shielding gas, it is often used to weld thin workpieces, but the welding speed is slower, and the heat input is much larger than laser welding, which is prone to deformation
Plasma arc welding
Similar to argon arc, but its welding torch will generate a compressed arc to increase arc temperature and energy density. It is faster than argon arc welding and has a larger penetration depth, but inferior to laser welding
Electron beam welding
It relies on a beam of accelerated high-energy-density electrons to hit the workpiece, generating huge heat in a small dense area on the surface of the workpiece to form a “small hole” effect, thereby implementing deep penetration welding.
Prospect of Laser Welding Method Automation Technology
The development of electronic technology, computer microelectronics and automation technology has promoted the development of welding automation technology.
In particular, the introduction of unit technologies such as numerical control technology, flexible manufacturing technology and information processing technology has promoted the revolutionary development of welding automation technology
(1) The intelligence of the welding process control system is one of the core issues of automatic welding , and it is also an important direction for our future research
(2) Flexibility welding technology is also the content of our research. In future research, we will organically combine various optical, mechanical and electrical technologies with welding technology to achieve precise and flexible welding
(3) The integration of welding control system is the integration of people and technology and the integration of welding technology and information technology. The information flow and material flow in the integrated system are its important components, promoting their organic combination can greatly reduce the amount of information and the requirements for real-time control
(4) Improving the reliability, quality stability and control of the welding power source, as well as the excellent dynamics, are also the subjects we focus on.
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