Complex-shaped hollow body producing process involves preparing hollow blank and pair of sheet cutouts, placing them in common tool and pressurizing

摘要

The hollow body producing process involves preparing a hollow strip (1) as the first blank and then a pair of sheet cutouts (2, 3). These are all laid in a common molding tool (7), held tightly against each other in their contact region (4). The connection to the pressure supply is then made and a high-pressure fluid is supplied to deform the hollow strip and the sheet cutouts at the same time.