Expansion die for manufacturing metal containers

Details Expansion die for manufacturing metal containers Expansion die for manufacturing metal containers

B - Operations, Transporting

21

D

B21D 37/00 (2006.01) B21D 51/26 (2006.01)

Patent

CA 2748426

The present invention provides an expansion die (5) for manufacturing containers including a work surface (10) including a progressively expanding portion (15) and a land portion (20), and an undercut portion (25) positioned following the land portion (25) of the work surface (10). The land portion has a surface finish Ra ranging from about 8 µ in. to about 32 µ in.

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