| 摘要 |
<p>A method including the steps of forming an inner ring (3) of a wheel hub (1), by joining a spindle (7) and an insert ring (8) fitted onto the spindle, on the side of a first end (9) of the spindle; axially blocking the insert ring on the spindle by plastically deforming the first end of the spindle so as to form an upset collar (10) therewith, which axially protrudes from the insert ring; and once the step of forming the upset collar has finished, frontally obtaining on the collar, on the side opposite to the insert ring a frontal toothing (5) by means of a single creator tool (11) provided, towards the collar, with a toothing (12) which is complementary to that to be obtained, by impressing onto the collar, in sequence, one or more teeth (13) of the complementary toothing, which have ridges (14) with a rounded profile having a curvature radius (R) varying in the direction of an axis of symmetry (A1) of the tool (11).</p> |
