Rolled stock of powder metallurgically-formed, nonductile materi

Details Rolled stock of powder metallurgically-formed, nonductile materi Rolled stock of powder metallurgically-formed, nonductile materi

1974-07-24

1977-05-24

Pendegrass, Verlin R.

Stock material or miscellaneous articles

All metal or with adjacent metals

Intermediate article

75208CS, B22F 700

Patent

active

040253139

ABSTRACT:
Rolled stock of a relatively nonductile material and a powder metallurgical method for its production. A precompact is formed including a body of powder of said nonductile material with generally parallel borders of a ductile metal powder compatible with the nonductile material along two side edges thereof. The precompact is compressed to form a compact of said nonductile metal with borders of said ductile metal and having two generally parallel faces extending between the outside edges thereof. The compact is sintered to form a bordered ingot which is then rolled in a direction parallel to its borders by applying rolling force to its faces. Initiation of edge cracks during the rolling operation is thereby inhibited.

REFERENCES:
patent: 3146099 (1964-09-01), Teja
patent: 3489531 (1970-01-01), Schreiner
patent: 3538550 (1970-11-01), Durrwachter
patent: 3560170 (1971-02-01), Durrwachter
patent: 3666456 (1972-05-01), Haller

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