The outstanding performance of welding technology is the development of welding process from mechanization to automation, intellectualization and informationization. The application of intelligent welding robot is an important symbol of highly automated welding process. Welding robot breaks through the traditional way of welding automation, making it possible for small batch automatic production. Most of welding…
High frequency welding is based on the energy of solid resistance heat. The resistance heat generated by high frequency current in the workpiece is used to heat the surface of the workpiece to the melting or near plastic state, and then the metal is combined with or without the imposition of the top forging force.…
Filler metal is the filler metal forming brazing joint, and the quality of brazed joint depends largely on filler metal. The solder should have suitable melting point, good wettability and filling ability, which can be diffused with the parent material, and also have certain mechanical and physical and chemical properties to meet the application performance…
The brazing is used as a filler metal with a melting point below the base material. The filler metal is melted when heated and filled and kept in the gap between the wetting and capillary action. The parent material is in the solid, and the brazing joint is formed by the mutual diffusion between the…
Diffusion welding is usually a solid-phase welding method using indirect heat energy as energy source. It is usually carried out in a vacuum or in a protective atmosphere. When welding, the surface of the two welders is exposed to and heat for a certain time under high temperature and pressure to reach the distance between…
Friction welding is a solid phase welding with mechanical energy as energy source. It uses the heat generated by mechanical friction between the two surfaces to realize the connection of metal. The heat of friction welding is concentrated at the joint surface, so the heat affected zone is narrow. Two pressure must be applied to…
Brass welding methods are: gas welding, carbon arc welding, manual arc welding and argon arc welding. (1) brass gas welding. Because the flame temperature of gas welding is low, the evaporation of brass is less than that of electric welding when welding. Therefore, the most commonly used method of gas welding is brass welding. The…
The method of welding copper is gas welding, manual carbon arc welding, manual arc welding and manual argon arc welding. Large structure can also be welded by automatic welding. (1) copper gas welding. The most commonly used butt joints for welded copper are lap joints and T-joints. Two kinds of wire can be used in…
This is a kind of welding method that takes resistance heat as energy source, including electric slag welding with slag resistance heat as energy source and resistance welding with solid resistance heat as energy source. Resistance welding is usually a welding method to connect the contact surface between two pieces of the workpiece under the…
Laser welding is the welding of laser beams generated by high-power coherent monochromatic photon streams as heat sources. Such welding methods usually include continuous power laser welding and pulsed power laser welding. The advantage of laser welding is that it does not need to be carried out in vacuum. The drawback is that the penetration…
