公开(公告)号：SE430481B

公开(公告)日：1983-11-21

申请号：SE8201982

申请日：1982-03-29

Applicant: ASEA AB

Inventor： EKBOM R E ,  GARVARE T

IPC: B23K20/02 ,  B23K20/00

Abstract: A method of welding by hot isostatic pressing for joining parts (2, 3) of a solid, preferably metallic material into a composite machine element (1). The parts (2, 3) are formed so that good contact is obtained between their surfaces which are to be joined together. The joint (4) is covered by a layer (5) of a powder or a mixture of powder with substantially the same composition as the material in the different parts. This powder layer (5) is covered by one or more layers (10, 11) of glass powder, which upon heating form a gas-impermeable layers. Between the powder layer (5) covering the joint (4) and a glass powder layer (10) nearest the said layer (5) there may be applied a powder layer (6) of a powder having a melting point higher than the pressing temperature. The parts (2, 3) are pressed isostatically in a known manner at such a temperature that diffusion bonding is achieved at the contact surfaces.

公开(公告)号：SE8201982L

公开(公告)日：1983-09-30

申请号：SE8201982

申请日：1982-03-29

Applicant: ASEA AB

Inventor： EKBOM R E ,  GARVARE T

IPC: B23K20/02 ,  B23K20/00

Abstract: A method of welding by hot isostatic pressing for joining parts (2, 3) of a solid, preferably metallic material into a composite machine element (1). The parts (2, 3) are formed so that good contact is obtained between their surfaces which are to be joined together. The joint (4) is covered by a layer (5) of a powder or a mixture of powder with substantially the same composition as the material in the different parts. This powder layer (5) is covered by one or more layers (10, 11) of glass powder, which upon heating form a gas-impermeable layers. Between the powder layer (5) covering the joint (4) and a glass powder layer (10) nearest the said layer (5) there may be applied a powder layer (6) of a powder having a melting point higher than the pressing temperature. The parts (2, 3) are pressed isostatically in a known manner at such a temperature that diffusion bonding is achieved at the contact surfaces.