A Brief Discussion on the Processing Methods of Marine Pipe fittings

2024-01-30

A Brief Discussion on the Processing Methods of Marine Pipe fittings
Pipe fitting processing is an organic combination of machining and metal pressure processing.
1. Forging method: Use a forging machine to punch and extend the end or part of the pipe to reduce the outer diameter. Commonly used forging machines include rotary, connecting rod, and roller types.
2. Stamping method: Use a tapered core on a punch to expand the pipe end to the required size and shape. Roller method: Place a core inside the tube and use a roller to push and press the outer circumference for circular edge processing.
3. Rolling method: generally does not require a core shaft, suitable for the inner circular edge of thick walled pipes.
4. Bending forming method: There are three commonly used methods, one is called stretching method, another is called stamping method, and the third is the familiar roller method, which has 3-4 rollers, two fixed rollers, one adjusting roller, and adjusting the fixed roller spacing. The finished pipe fittings are bent. This method is widely used, and if spiral tubes are produced, the curvature can also become larger.
5. Bulging method: One method is to place rubber inside the tube and compress it with a punch to make the tube protrude into shape; Another method is hydraulic bulging forming, which fills the middle of the pipe with liquid and uses liquid pressure to bulge the pipe into the desired shape. This method is mostly used in the production of corrugated pipes, which we commonly use.