1. Resistance welding of welding process
In the mechanical manufacturing process, the non-standard fixture resistance welding is mainly the process of applying pressure with the positive and negative electrodes of the power supply after the various components are gathered together. The resistance heat generated by the joint part of the current and the surrounding area is heated to the melting or plastic state, and the welding is carried out after the metal is fully combined. In recent years, with the rapid development of electrical products and aerospace technology in China, resistance welding technology has attracted extensive attention from all walks of life. In addition, microelectronics technology and thermal expansion closed-loop monitoring technology provide necessary conditions for the future development of resistance welding to a certain extent, so as to expand the application field of resistance welding technology.

2. Stud welding of welding process
Stud welding in the welding process mainly heats the components and studs to the specified temperature, and a large amount of electric arc will be generated between the components and studs. The studs will be sent into the welding pool under the action of external forces, and finally form a welding joint. With the continuous improvement of China's economic level and the rapid development of the manufacturing industry, the stud welding technology in the welding process has begun to be related by all walks of life
It is adopted by enterprises and widely used in the process of automobile manufacturing.
3. Gas shielded welding of welding process
The so-called gas shielded welding is that the gas is regarded as the medium of the arc, and the arc welding of the numerical control fixture to protect the arc and the welding contact surface is the gas shielded welding. The welding process of gas shielded welding is characterized by good visibility, simple operation and easy automation. At present, gas shielded welding is widely used in petrochemical, power protection and other fields. In recent years, with the development of science and technology and mechanical raw materials in China, the rapid development of gas shielded welding has been further promoted.

4. Submerged arc welding of welding process
Submerged arc welding is mainly a kind of welding through flux layer in the process of arc burning
Operation method. This welding process has many advantages, such as no arc light, high quality, good stability and so on. Submerged arc welding is mainly used in the welding process of boilers, large pipes, etc
On the other hand, it will greatly promote the development of large equipment in many machinery manufacturing industries.

5. Friction stir welding of welding process
Friction stir welding is mainly used to rub the end faces of mechanical elements against each other, generate heat by numerical control fixture, and make the ends of mechanical elements reach melting or plastic properties
It is an operation method for timely upset welding. At present, friction stir welding technology has high productivity and future development prospects, so this welding technology has a large
Market demand space, which is widely used in railway, aircraft manufacturing and other fields.
