METHOD OF SHEET BILLET MOLDING IN SUPERPLASTICITY MODE Russian patent published in 2019 - IPC B21D26/02

Abstract RU 2693222 C2

FIELD: metal forming.

SUBSTANCE: invention relates to pneumothermal molding of parts from sheet workpieces. Sheet workpiece is placed in matrix, heated to superplasticity temperature, non-uniform temperature field is created in it and deformed by working medium pressure. At that deformation of workpiece is carried out in vacuum chamber, and non-uniform temperature field in workpiece during its heating is created by means of elements contacting with workpiece surface, which prevent heating in places of maximum deformation of workpiece.

EFFECT: higher quality of parts due to reduced thicknesses.

1 cl, 2 dwg

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RU 2 693 222 C2

Authors

Petukhov Ivan Sergeevich

Sobolev Yakov Alekseevich

Dates

2019-07-01—Published

2017-04-12—Filed