| 摘要 |
A vacuum-forming system (40) for deforming a forming blank (16) is disclosed. The system includes a tool (22) and at least one regulator bag (42) disposed adjacent to the tool (22). The regulator bag (42) includes a sealed bag having an exterior and an interior and a first volume and a defined passage from the interior to the exterior of the regulator bag. The passage is configured such that the regulator bag (42) has a rate of deflation wherein the sealed bag will deflate from the first volume to a second volume over a determined period of time while the exterior of the sealed bag is at a determined reduced pressure. The system also includes a vacuum membrane (46) coupled to the tool (22), the membrane configured to form a vacuum space (48) enclosing the forming blank (16) and the at least one regulator bag (42). |
