| 摘要 |
Deforming of a workpiece wherein a workpiece is clamped between high friction and low friction surfaces and frictional forces are utilized to transport the workpiece over the low friction surface and into engagement with a die surface. Further, the forming of a projection, in particular a flange, on a plastically deformable member by flaring a portion of the member and by building up hydrostatic pressure in the member, including the flared portion, sufficiently high to place the member in a plastic state and cause a portion of the member, including the flared portion, to flow and increase in thickness thereby forming the projection. The hydrostatic pressure is built up in the member by the application of hydrostatic pressure from a pressurized fluid medium, or by the mechanical application of pressures. |
