Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Reexamination Certificate
2006-01-31
2006-01-31
Tolan, Ed (Department: 3725)
Metal deforming
By use of tool acting during relative rotation between tool...
During rotation of work
C072S084000, C072S121000, C072S125000
Reexamination Certificate
active
06990841
ABSTRACT:
A method and apparatus for spin forming a portion of a workpiece where the formed portion has a formed axis that is non-coaxial with the non-processed axis of the 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 pivoting mechanism rotates the rollers or workpiece about a pivot point from a first angular position to a second angular position during a forming operation to create a formed portion that is oblique to the non-processed portion or is substantially curved. 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.
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Boehnke John C.
Ciosek James M.
Desousa Egas Jose
Wagner Frederick D.
Delphi Technologies Inc.
Marshall Paul L.
Tolan Ed
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