Manufacturing technology of stainless steel pipes for automobiles
At present, the main methods used for continuous welding of ferritic stainless steel in industry include TIG welding, high-frequency induction welding, plasma arc welding, and excitation welding. High quality welded pipes are more commonly used for high-frequency induction welding and excitation welding.
Welding characteristics of stainless steel pipes for automobiles:
Compared with traditional fusion welding, laser welding and high-frequency welding have the characteristics of fast welding speed, high energy density, and low heat input. Therefore, the heat affected zone is narrow, the degree of grain growth is small, the welding deformation is small, and the cold forming performance is good. It is easy to achieve automated welding and single pass penetration of thick plates. The most important feature is that I-shaped groove butt welding does not require filling materials.
The use of laser welding and high-frequency welding of ferritic stainless steel pipes can meet the cold working process requirements of automotive exhaust pipe production after welding, with a high yield and a scrap rate of less than 1%.
Welding characteristics of stainless steel pipes for automobiles:
Compared with traditional fusion welding, laser welding and high-frequency welding have the characteristics of fast welding speed, high energy density, and low heat input. Therefore, the heat affected zone is narrow, the degree of grain growth is small, the welding deformation is small, and the cold forming performance is good. It is easy to achieve automated welding and single pass penetration of thick plates. The most important feature is that I-shaped groove butt welding does not require filling materials.
The use of laser welding and high-frequency welding of ferritic stainless steel pipes can meet the cold working process requirements of automotive exhaust pipe production after welding, with a high yield and a scrap rate of less than 1%.
