Method and apparatus for lean spin forming

Details Method and apparatus for lean spin forming Method and apparatus for lean spin forming

2006-11-07

2006-11-07

Tolan, Ed (Department: 3725)

Metal deforming

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

Tool orbiting or rotating about an axis

C072S084000, C072S125000

Reexamination Certificate

active

07131305

ABSTRACT:
A method and apparatus for spin forming a portion of a workpiece includes at least two rollers rotatable about a spin axis. Each one of the rollers is axially and radially offset from the others. An axial drive mechanism reciprocates the rollers or workpiece to causes the first roller and then the second roller to sequentially engage the workpiece. A higher reduction ratio is achieved which enables improved efficiency. The present invention reduces floor space requirements as the forming operation may be completed on a single machine.

REFERENCES:
patent: 5937516 (1999-08-01), De Sousa et al.
patent: 6216512 (2001-04-01), Irie
patent: 6591498 (2003-07-01), Irie et al.
patent: 6769281 (2004-08-01), Irie et al.
patent: 6823704 (2004-11-01), Nakamura et al.
patent: 02/07906 (2002-01-01), None
patent: 02/062500 (2002-08-01), None

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