Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Reexamination Certificate
2007-11-27
2007-11-27
Tolan, Ed (Department: 3725)
Metal deforming
By use of tool acting during relative rotation between tool...
During rotation of work
C072S082000, C072S107000
Reexamination Certificate
active
11349183
ABSTRACT:
A preparatory molding roll4having a convex push surface41is pushed to an outer peripheral surface of a work1A while the work1A is chucked by a pair of molds2and3and is rotated by applying axial propelling force, to bend inward the outer peripheral surface of the work in a radial direction. The work is then chucked by the preparatory molding roll and the upper and lower molds. Next, the preparatory molding roll is moved back and the work is crushed in the axial direction to form a bent portion1a. A molding roll5is pushed to mold the outer shape of the work. A grooved roll6is next pushed to the outer peripheral surface of the work and a groove1bis formed on the outer peripheral surface.
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Eguchi Yuji
Hattori Shigeo
Hayashi Tatsuji
Shohara Hiroshi
Denso Corporation
Tolan Ed
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