Method of producing a sliding sleeve for the synchronizer means of a change-speed gear
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United States of America Patent
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Dec 23, 1997
Grant Date -
N/A
app pub date -
Feb 6, 1996
filing date -
Feb 16, 1995
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Abstract
A method of producing a sliding sleeve for a synchronizer of a speed-changing gear, the sliding sleeve being comprised of a sintered powder metal compact having a claw extending along an inner periphery of the sleeve, and the claw consisting of teeth having opposite end faces and a cross-section between the end faces which is reduced relative to an undercut portion at at least one of the end faces, which method comprises the steps of sintering the powder metal compact having the claw consisting of the teeth having the opposite end faces and the reduced cross-section extending between the end faces, and then applying solely an axial upsetting force to the one end face to form the undercut portion thereat while leaving the reduced cross-section unchanged.
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