Welding Technology of Stainless Steel Welded Pipe for Automobile
The main methods for continuous welding of ferritic stainless steel are: TIG welding, high frequency induction HFI welding, plasma arc welding PAW and excitation welding. High-quality welded pipes are more frequently used for high-frequency induction welding and excitation welding.
Welding characteristics of stainless steel tubes for automobiles:
Compared with traditional fusion welding, laser welding and high-frequency welding have the characteristics of fast welding speed, high energy density, and small 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 realize automatic welding and single-pass penetration of thick plates. The most important feature is that the I-shaped groove butt welding does not require filler materials.
The use of laser welding and high-frequency welding of ferritic stainless steel pipes can meet the requirements of the cold working process for the production of automobile exhaust pipes after welding, with a high yield rate and a scrap rate of less than 1%.
Related References:
1. Welding Process and Letter Designations
2. Welding Stainless Steel to other Steel
3. Welding and Post Fabrication Cleaning for Construction and Architectural Application
4. Welded Stainless Steel Pipe
5. Post weld cleaning and finishing of stainless steel
6. Avoid PWHT Post Weld Heat Treatment
7. Fume Associated With Welding Stainless Steel
8. Avoiding Distortion During Welding Stainless Steel
9. Design Strength of Welded Connections
10. Processes for Welding Stainless Steel
11. Brazing Stainless Steel
12. Soldering Stainless Steel
13. Welding Stainless Steel
14. Selection of Welding Consumables Filler
15. Selection of Welding Consumable for Welding Stainless Steel
16. Filler Metals For Welding Stainless Steel
17. Schaeffler and Delong Diagrams for Predicting Ferrite Levels
18. Welding Properties of Stainless Steel
19. 308L 309L 316L 347 Filler Metal Introduction