Processing method of stainless steel square tube and its fittings

Due to the special shape of the stainless steel square pipe, there are different ways to process the pipe fittings. 
1. The price of pipe fittings is divided into methods such as forging, stamping, rolling, rolling, bending, and expansion. Several processing methods are introduced as follows:
2. Forging method: Use a swage forging machine to stretch the end or part of the pipe to reduce the outer diameter. Commonly used swage forging machines include rotary type, connecting rod type, and roller type.
3. Stamping method: use a tapered core on the punching machine to expand the pipe end to the required size and shape.

4. Bulging method: one is to place rubber in the tube, and compress it with a punch to make the tube protrude; the other method is hydraulic bulging, filling the middle of the tube with liquid, and the pressure of the liquid bulges the tube into the desired shape. Shape, most of the production of corrugated pipes use this method

5. Bending method: There are three commonly used methods, one method is called stretching method, the other method is called stamping method, and the third method is roller method. There are 3-4 rollers, two fixed rollers, and one adjustment roller. With a fixed roll gap, the finished pipe is bent.
6. Roller method: place a core in the tube, and push the outer circumference with a roller for round edge processing.
7. Rolling method: Generally, no mandrel is used, and it is suitable for the inner round edge of thick-walled tubes.