For the mechanical parts and parts, the general weld will not be too long. Different welding methods can be selected according to the different requirements for the welding accuracy. The general accuracy and thickness of the parts are mostly gas shielded welding, heavy duty parts are electroslag welding, gas welding, thin parts resistance welding, the circular section can be selected by friction welding, and the workpiece with high accuracy can be selected by electron beam welding.
Mechanical parts and components, such as all kinds of machine parts.
The welds of structural parts are generally long, and automatic submerged arc welding and gas shielded welding can be selected. The short weld and bottom welds are suitable for manual arc welding and argon arc welding.
There are several kinds of welding methods for different types of products to choose from. Which way is more appropriate, besides the type of products, we should also consider the thickness of workpiece, the form of joint, the location of weld, the function of parent material, the precondition of production and the economic benefit.
Structural parts: such as bridges, buildings, boiler and pressure vessels, shipbuilding, metal structural parts, etc.
The joint of microelectronic device usually requires sealing, point to point and precise positioning. It is often used in electron beam welding, laser welding, ultrasonic welding, diffusion welding, brazing and so on.
Microelectronic devices, such as circuit boards, semiconductor components, etc.
The weld of the semi-finished products is regular and large, and it can be easily mechanized, automatic, submerged arc welding, gas shielded welding and high frequency welding.
Semi finished products: such as steel, spiral steel pipe, welded pipe etc..