公开(公告)号：US4811582A

公开(公告)日：1989-03-14

申请号：US136743

申请日：1987-12-21

申请人： James M. Story ,  Matthew P. Sklad

发明人： James M. Story ,  Matthew P. Sklad

IPC分类号： B21D26/055 ,  B21D26/02

CPC分类号： B21D26/055 ,  Y10S72/709

摘要： A method of superplastically forming a part over period of a forming cycle in which a blank of the material is provided and heated to within a certain range of temperatures. An analytical model is provided that determines locations of the blank that will deform most rapidly when forming pressure is applied. As the forming pressure is applied, the displacements are monitored at such locations while the blank is being deformed. The strain rate is then calculated and feedback control is provided to affect the strain rate at such locations that will reduce the tendency of the blank or part to cavitate.

摘要翻译： 一种在成形周期的周期内超塑性地形成部件的方法，其中提供材料坯料并将其加热到一定温度范围内。 提供了一种分析模型，用于确定当施加压力时最快速变形的坯料的位置。 当施加成形压力时，在坯料变形的同时在这样的位置监测位移。 然后计算应变率，并提供反馈控制以影响在这些位置处的应变速率，这将降低坯料或部件气蚀的趋势。

公开(公告)号：US4741197A

公开(公告)日：1988-05-03

申请号：US856023

申请日：1986-04-25

申请人： Edwin H. Spuhler ,  James M. Story

发明人： Edwin H. Spuhler ,  James M. Story

IPC分类号： B21D26/055 ,  B21D45/02

CPC分类号： B21D26/055 ,  B21D45/02

摘要： A method of removing or ejecting a part from a first die after the part has been superplastically formed in a cavity of the die at an elevated temperature such that the part sticks to the surfaces of the die. The method includes the steps of forming a flange of the part between opposed die surfaces and providing movable plate within the die cavity and a ring on the opposed surface of the first die that engages the flange and the part in the cavity in a uniform manner. The movable plate and ring are then translated away from the die surfaces to uniformly move the part from the first die after the dies are separated.

摘要翻译： 在部件已经在模具的空腔中在升高的温度下被超塑性地形成以使得该部件粘附到模具的表面之后，从第一模具中去除或喷射零件的方法。 该方法包括以下步骤：在相对的模具表面之间形成部件的凸缘并且在模腔内提供可移动的板，以及在第一模具的相对的表面上以均匀的方式接合凸缘和腔体中的部件的环。 然后，可移动的板和环从模具表面平移，在模具分离之后使部件从第一模具均匀地移动。