Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Reexamination Certificate
2011-03-22
2011-03-22
Bonk, Teresa M (Department: 3725)
Metal deforming
By use of tool acting during relative rotation between tool...
During rotation of work
C072S102000, C072S469000
Reexamination Certificate
active
07908897
ABSTRACT:
A spline rolling tool including a plurality of forming teeth that are to bite into a cylindrical workpiece so as to roll splines in the workpiece. Each of the forming teeth has an incomplete toothed region in which a crest of each forming tooth is removed such that an upper end of each forming tooth in the incomplete toothed region is defined by an incomplete-toothed region surface that includes a curved surface portion, a flat surface portion and a slant surface portion. The incomplete-toothed region surface is defined at its periphery by a chamfered edge that has a surface roughness of not larger than about 3.2 μm. Also disclosed is a process of manufacturing the spline rolling tool, which includes a chamfering step of forming the chamfered edge by using a wire brush having abrasive grains that are fixed to bristles of the wire brush.
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Asaga Nobuyoshi
Igarashi Masahiko
Igusa Manabu
Komuro Satoshi
Mochizuki Takeshi
Bonk Teresa M
Honda Motor Co. Ltd.
Muramatsu & Associates
OSG Corporation
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