Method of wheel manufacture for correcting rotational...

Details Method of wheel manufacture for correcting rotational... Method of wheel manufacture for correcting rotational...

B - Operations, Transporting

21

D

26/190

B21D 53/26 (2006.01)

Patent

CA 1295822

Abstract of the Disclosure A method and apparatus for forming bolt and center- pilot mounting openings in vehicle wheels, particularly styled-disc vehicle wheels. A preformed rim and disc assembly is engaged and fixtured around the rim bead seat with the inboard disc face resting on a lower die assembly and without plastic deformation to the rim or disc. An upper die assembly having an array of bolt hole punches is moved into piercing- and-coining engagement with the disc to form the bolt openings Continued motion of the upper die assembly against the wheel disc pushes the disc and lower die assembly into shearing engagement with a center punch which forms the center-pilot opening. The axes of the bolt openings and/or center pilot opening and/or bead seats may be aligned or offset from each other.

530468

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