There are five main forming methods in stainless steel seamless elbow processing. Let us learn about it together through this article!
1. Forging
The pipe end or part is stretched by a forging machine to reduce the outer diameter.
2. Rolling
Place the core inside the tube and push the outer circumference with a roller.
3. Stamping
Use a tapered core on a punch to enlarge the pipe end to the required size and shape.
4. Bending and forming
Usually there are 3-4 rollers and 2 fixed rollers and 1 adjusting roller, which are used to adjust the fixed roller distance. The finished pipe fittings are curved.
5. Bulging
Bulging can be divided into two methods:
①Place rubber inside the tube and compress it with a punch from above to make the tube bulge into shape.
② Pour the required liquid into the tube and use the liquid pressure to bulge the tube into the required shape.