Method of making metal containers

Details Method of making metal containers Method of making metal containers

2005-09-20

2005-09-20

Tolan, Ed (Department: 3725)

Metal deforming

By extruding through orifice

Utilizing internal forming means

C072S256000, C072S379400, C072S715000, C413S001000

Reexamination Certificate

active

06945085

ABSTRACT:
Lightweight metal containers are formed from high-strength metal alloys by impact extrusion of a cup-shaped container having a substantially larger diameter than the finished container, drawing and wall ironing the extruded container to reduce its diameter and wall thickness while increasing the height of the container to the appropriate diameter, wall thickness and height.

REFERENCES:
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patent: 4854149 (1989-08-01), Porucznik et al.
patent: 5095730 (1992-03-01), Lauder
patent: 5572893 (1996-11-01), Goda et al.
patent: 5822843 (1998-10-01), Diekhoff et al.
patent: 6627012 (2003-09-01), Tack et al.
patent: 6779677 (2004-08-01), Chupak

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