公开(公告)号：US4989439A

公开(公告)日：1991-02-05

申请号：US272403

申请日：1988-11-17

Applicant: Lee R. Ewert ,  Sumner B. Sargent ,  Walter Leodolter

Inventor： Lee R. Ewert ,  Sumner B. Sargent ,  Walter Leodolter

IPC: B21D25/02

CPC classification number: B21D25/02 ,  Y10S72/702

Abstract: A device and method for taking to account the elasticity of materials during bending operations to cause the proper amount of overbending such that after springback and while at rest, the material assumes its intended shape.

Abstract translation: 一种用于在弯曲操作期间考虑材料的弹性以引起适当量的过度弯曲的装置和方法，使得在回弹之后并且在静止时材料呈现其预期的形状。

公开(公告)号：US4426032A

公开(公告)日：1984-01-17

申请号：US300767

申请日：1981-09-10

Applicant: Walter Leodolter

Inventor： Walter Leodolter

IPC: B21D26/055 ,  B23K20/18 ,  B23K20/14

CPC classification number: B21D26/055 ,  B23K20/18

Abstract: A peripheral seal is formed between a pair of metal blanks and spaced opposing tools of superplastic forming and diffusion bonding apparatus by heating the blanks and pressurizing a region between inner and outer weld seams formed in the marginal peripheral edge portions of the blanks. After the blanks are converted by the apparatus into the formed component, the peripheral edge portions containing the seals are trimmed off.

Abstract translation: 在一对金属坯料和超塑性成形和扩散接合装置的隔开的相对工具之间形成周边密封件，该加热装置通过加热坯件并加压形成在坯件的边缘周边部分中的内部和外部焊缝之间的区域。 在坯料通过设备转换成成形部件之后，将包含密封件的周缘部分修剪掉。

公开(公告)号：US4288021A

公开(公告)日：1981-09-08

申请号：US81483

申请日：1979-10-03

Applicant: Walter Leodolter

Inventor： Walter Leodolter

IPC: B21D26/055 ,  B23K20/14

CPC classification number: B21D26/055 ,  B23K20/14 ,  Y10T29/49805

Abstract: Tooling for use in an autoclave or a hot press for the superplastic forming and diffusion bonding of metals which tooling includes upper and lower portions with a labyrinth seal therebetween having inert counterflowing gas introduced thereto to prevent contamination from flowing across the seal to attack the metal being processed.

Abstract translation: 用于高压釜或热压机的模具用于金属的超塑性成形和扩散接合，该模具包括具有引入其中的惰性反流气体的上部和下部的迷宫式密封件，以防止污染物流过密封件以侵蚀金属 处理。