321 stainless steel processing and attention points:
321 stainless steel deep processing: it is easy to generate friction heat, so the the attached oil on surface of 321 stainless steel should be removed after the completion of molding process.
321 stainless steel welding: Before welding, rust, oil, water, paint that is harmful to welding should be completely removed, and suitable electrode for 321 stainless steel should be selected. Spot welding distance of 321 stainless steel is shorter than spot welding distance of carbon steel. Stainless steel brush should be used when removing welding slag. After welding, the surface of 321 stainless steel should be ground or cleaned to prevent localized corrosion or strength drop.
321 stainless steel cutting and stamping: because 321 stainless steel strength is stronger than ordinary materials, so its stamping and shearing requires higher pressure, and the clearance between the knife and the knife is accurate before shearing and processing hardening can not occur, it is better to use plasma or laser cutting. When had to use air cutting or arc cutting, the heat affected zone should do grinding and necessary heat treatment.