Reinforced plastic retainer rings for sheet metal forming and me

Details Reinforced plastic retainer rings for sheet metal forming and me Reinforced plastic retainer rings for sheet metal forming and me

1986-05-19

1988-01-19

Lowe, James

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

By individually non-deforming clamps

72351, 72465, 264225, 264263, 264277, B21D 1102, B29C 3340

Patent

active

047197862

ABSTRACT:
A reinforced plastic retainer ring for use in a sheet metal stretch forming process. The ring is reinforced with a plurality of metal brackets embedded in the rim portion generally radially aligned toward the center of the ring.

REFERENCES:
patent: 2058938 (1936-10-01), Apple
patent: 2980046 (1961-04-01), McGregor et al.
patent: 3088174 (1963-05-01), Kolt
patent: 3101065 (1963-08-01), Kalis
patent: 3108853 (1963-10-01), Short et al.
patent: 4019075 (1977-04-01), Kagami
patent: 4509358 (1985-04-01), Krowl

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