Method for forming barrel for two-piece can

Details Method for forming barrel for two-piece can Method for forming barrel for two-piece can

1990-06-27

1992-05-12

Spruill, Robert L.

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

72347, B21D 2220

Patent

active

051116790

ABSTRACT:
In a method for forming a barrel for a two-piece can, before the step of draw-forming the bottom, a taper portion having an inner diameter gradually decreasing toward the bottom surface is formed on a lower part of the side wall of a flat-bottom barrel, corresponding to the outer circumferential frustoconical portion of the bottom of the final barrel or an upper portion contiguous to the outer circumferential portion, and at the step of draw-forming the bottom, at least an upper part of the taper portion is outwardly expanded by insertion of the cylindrical punch. According to this method, a two-piece can having a bottom having a good appearance, a high pressure-resistant strength and an excellent corrosion resistance can be prepared at a high productivity and with a good operation adaptability.

REFERENCES:
patent: 3760751 (1973-09-01), Dunn et al.
patent: 4289014 (1981-09-01), Maeder et al.
patent: 4372143 (1983-02-01), Elert et al.
patent: 4620434 (1986-11-01), Pulciana et al.
patent: 4685322 (1987-08-01), Clowes
patent: 4790169 (1988-12-01), Johansson et al.

Affiliated with

Also associated with

Rating

Method for forming barrel for two-piece can does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for forming barrel for two-piece can, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for forming barrel for two-piece can will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2422974