Process for coextrusion billets with multiple metallic cylindric

Details Process for coextrusion billets with multiple metallic cylindric Process for coextrusion billets with multiple metallic cylindric

1989-11-07

1990-12-11

Lechert, Jr., Stephen J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

419 8, 419 41, 419 49, 419 57, 428636, 428660, G22F 700

Patent

active

049770349

ABSTRACT:
Coextrusion billets of two or more concentric metallic layers treated by a hot isostatic pressing (HIP) process in order to form a defect-free bondline between the contiguous touching metal layers. The HIP process can also be applied to extruded or further reduced tubes in order to heal 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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