Production Process of Pipe Fitting

There are many kinds of processing methods for carbon steel pipe fittings. Many of them also belong to the category of mechanical processing. Most of them are stamping method, forging method, roller processing method, rolling method, bulging method, drawing method, bending method, and combination processing method . Pipe processing is the organic combination of machining and metal pressure processing.

Examples are as follows:
Forging method: the use of forging machine to pipe or part of the end to be extended, so that the outer diameter reduction, commonly used forging machine has a rotary, connecting rod, roller type.

Stamping method: Use a tapered core on the punch to extend the pipe end to the desired size and shape.

Roller method: the tube placed in the tube, the outer wheel with a roller, for the round edge processing.

Rolling method: generally do not have mandrel, suitable for thick-walled mild steel pipe inside the round edge.

Bending method: there are three methods are more commonly used, one method is called extension method, the other method is called stamping method, the third is more familiar with the roller method, there are 3-4 rollers, two fixed roller, an adjustment Roller, adjust the fixed roller from the finished pipe is bent. This method is applied to a wider, if the production of spiral, the curvature can be increased.

Bulging method: one is placed in the tube rubber, the top with a punch compression, the tube protruding shape; another method is the hydraulic bulging forming, filling the middle of the tube liquid,  liquid pressure to the drum drum into the required shape , As most of our commonly used bellows production is used in this way.