Internal high-pressure forming of tubes (hydroforming)
Description
In internal high-pressure forming (hydroforming) of shaped parts, metal tubes are expanded by water pressure from the inside in a closed die cavity.In this methodology straight or pre-formed tubing is placed into the die, which is then closed by a hydraulic press and thus held in place during the forming process. Sealing punches close the tube ends and the component is filled with the fluid medium. The material is subsequently formed by internal pressure. The forming process is supported by continued axial infeeding of the material. The component receives its finished contour by means of a final sizing/calibrating operation.
Advantages
- Greater rigidity and strength
- Reduced weight
- Integration of multiple manufacturing procedures
- Fewer joining/assembly operations
- High degree of repeat accuracy
- Manufacture of complex shapes possible
Contact - North America
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