Metal deforming – By use of closed-die and coacting work-forcer – Forcing work into or within closed die; e.g. – forging
Patent
1983-06-03
1985-12-24
Crane, Daniel C.
Metal deforming
By use of closed-die and coacting work-forcer
Forcing work into or within closed die; e.g., forging
72357, 72358, 72472, 72404, 291483, B21D 2200
Patent
active
045598045
ABSTRACT:
A rectangular prism (FIG. 10A) is cut diagonally to form a pair of generally wedge-shaped billets (FIG. 10B). The generally wedge-shaped billets are heated and placed in a transversely elongated die cavity of a lower busting die (20). An upper busting die (22) presses the billet generally into conformity with the busting die cavity. The busting dies include a projection (36) which forms a recess in one planar surface of the billet (FIG. 10C). The busted billet is disposed axially in an axially elongated split ring die cavity (46) of a split ring die (40). A blocking punch (60) presses the billet generally into conformity with the split ring die cavity (FIG. 10D). The split ring die and the blocked billet are moved from a blocking well (14) to a finishing well (16) where a finishing punch (70) presses the blocked billet into conformity with the finishing die cavity (FIG. 10E). The flanges are trimmed from the finished billet and mounting apertures (80, 82) are punched to form an excavator tip (FIG. 10F).
REFERENCES:
patent: 172258 (1876-01-01), Chapman
patent: 189232 (1877-04-01), Rieckel
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patent: 2344803 (1944-03-01), Criley
patent: 4094183 (1978-06-01), Mettler
patent: 4294101 (1981-10-01), Diemer et al.
patent: 4304115 (1981-12-01), Martin
patent: 4321818 (1982-03-01), Bessho
patent: 4382324 (1983-05-01), Halene
patent: 4413496 (1983-11-01), Diemer et al.
Delio Ralph D.
Diemer Donald J.
Crane Daniel C.
Jones David B.
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