Preparation process for coextrusion billets with multiple metall

Details Preparation process for coextrusion billets with multiple metall Preparation process for coextrusion billets with multiple metall

1989-04-10

1991-02-26

Ramsey, Kenneth J.

Metal fusion bonding

Process

Encasing a rodlike core within a substantially coextensive...

228156, 228193, 2281732, 228200, B23K 2024

Patent

active

049955489

ABSTRACT:
Coextrusion billets of two or more concentric metallic layers are treated by a hot isostatic pressing process and, then, may be succeeded by heating to an elevated temperature followed by quenching in order to form a diffused bondline between the contiguous touching metal layers, which after extruding and reducing into tubing, is relatively free of bondline defects.

REFERENCES:
patent: 4049184 (1977-09-01), Rozengart et al.
patent: 4065302 (1977-12-01), Turillon
patent: 4372817 (1983-02-01), Armijo et al.
patent: 4478363 (1984-10-01), Imahashi et al.
patent: 4754911 (1988-07-01), Turner
patent: 4808485 (1989-02-01), Prewo et al.

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