Ram for long stroke press

Details Ram for long stroke press Ram for long stroke press

1994-01-11

1995-11-14

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

72479, B21D 3701

Patent

active

054656010

ABSTRACT:
A ram (40,50) of a press comprises metal sleeve (41,51), a hollow core (42, 58), a first end piece 42A, 52 attached to one end of the rod and a second end piece 46, 54 attached to the other end 47 of the ram to support a tool, the hollowcore being made of a material lighter than that of the sleeve. The benefit is a ram of reduced weight to minimize inertia forces arising during use.

REFERENCES:
patent: 3402591 (1968-09-01), Maeder
patent: 3733881 (1973-05-01), Grigorenko
patent: 4425820 (1984-01-01), Swozil
patent: 4541304 (1985-09-01), Chikugo et al.
patent: 4779442 (1988-10-01), Welsh
patent: 5018915 (1991-05-01), Inokuma et al.
patent: 5095730 (1992-03-01), Lauder

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