Method for necking a metal container body

Details Method for necking a metal container body Method for necking a metal container body

1991-07-01

1992-08-18

Larson, Lowell A.

Metal deforming

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

With metal deformation of different type

72 84, 723794, B21D 4104

Patent

active

051388588

ABSTRACT:
The present invention is directed to a novel processing for necking metal container bodies. The process comprises die-necking a container body to a first necked plug diameter, employing one or more operations, and thereafter spin-flow necking the container body to a second reduced plug diameter. The utilization of die-necking advantageously reduces plug diameter variability, thereby enhancing and complimenting the spin-flow necking operation.

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