Introduction to Pipe Fitting Processing Methods

1.Forging method: Use a die forging machine to extend the end or part of the pipe to reduce the outer diameter. Commonly used die forging machines include rotary type, connecting rod type and roller type.

2.Stamping method: On a press, the tube end is expanded to the required size and shape using a conical core.

3.Roller method: Place the core inside the tube and press the outer edge with a roller, which is used for round edge processing.

4.Rolling method: Generally, no mandrel is used and it is suitable for the inner round edge of thick-walled tubes.

Pipe fitting

5.Bending forming method: There are three commonly used methods. One is called the stretching method, another is called the stamping method, and the third is the roller method3－4There are two fixed rollers and one adjusting roller. By adjusting the distance between the fixed rollers, the finished pipe fitting will be bent.

6.The bulging method: One approach is to place rubber inside the tube and compress it with a punch above to make the tube protrude and form a shape. Another method is hydraulic bulging forming. Liquid is filled in the middle of the pipe, and the liquid pressure bulges the pipe into the required shape. This method is mostly used in the production of corrugated pipes.