Importance

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Abstract

A process for producing bearing ring blanks, or gearwheel ring blanks or tubular connection-member blanks, comprises the steps of: •a) providing a steel tube; •b) dividing the tube into a plurality of slugs (30, 30′) each having an axial through cavity; •c) supplying the slugs (30, 30′) to a die assembly (20) of a cold-forming station, the forming station including a punch assembly (10); and •d) subjecting the slugs (30, 30′) to contained forward extrusion through the die assembly (20), wherein the thrust imparted by a pushing member (11) of the punch assembly (10) on a subsequent slug (30′) causes passage of a preceding slug (30) through the die assembly (20), with deformation thereof into a blank (40), while a restraining member (12) of the punch assembly (10) occupies the axial cavity of the subsequent slug (30′) and at least part of the axial cavity of the preceding slug (30).

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First Claim