Method of configuring open end of can body

Details Method of configuring open end of can body Method of configuring open end of can body

1992-06-23

1993-07-20

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72 96, 72110, B21D 1912

Patent

active

052283216

ABSTRACT:
A necked-in and flange portion is formed in the open end of a seamless can body by using a can end holder driven for rotation about its axis, an axially movable inner roll of a reduced diameter disposed adjacent the can end holder, and a spinning roll positioned axially stationary outside the can body. While the can body with the open end telescoped onto the can end holder and in contact with the inner roll is rotated together with the can end holder, the spinning roll is advanced toward the can end holder and forced into the open end, and simultaneously the can body is moved in an axial direction away from the can end holder together with the inner roll, to form the necked-in and flange portion.

REFERENCES:
patent: 4058998 (1977-11-01), Franek et al.
patent: 4070888 (1978-01-01), Gombas
patent: 4606207 (1986-08-01), Slade
patent: 4870847 (1989-10-01), Kitt

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