Apparatus for manufacturing a formed body having a concentric hub
OwnerUdo Frieseinventor
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Abstract
An apparatus for manufacturing a formed body having a concentric hub. The concentric hub is formed from a round blank, with a rotating tool plate on which the round blank lies, a work roller and a follower roller capable of being infed axially and/or radially for shaping of the hub about a concentrically arranged mandrel. The work roller has a pressure surface on its side facing toward the mandrel, against which pressure surface material of the round blank is removed in flow-forming abuts. The pressure surface is inclined outwardly relative to the central axis of the mandrel.
Claims10
An apparatus for manufacturing a formed body having a concentric hub from a round blank, with a rotating tool plate on which the round blank lies, a work roller and a follower roller capable of being infed axially and/or radially for shaping of the hub about a concentrically arranged mandrel, the work roller having a pressure surface on its side facing toward the mandrel, against which pressure surface material of the round blank removed in flow-forming abuts, characterized in that the pressure surface is inclined outwardly relative to the central axis of the mandrel, specifically starting from the round blank.
A method for chipless manufacturing of a formed body having a hub from a round blank in which the round blank in rotating with respect to at least one work roller is reduced in thickness radially and/or axially from the outside inwardly by pressing with the work roller and the material removed is shaped about a centrically arranged cylindrical mandrel to make the hub, characterized in that the hub is initially shaped by the work roller in a funnel shape with its wall positioned obliquely outwardly relative to the central axis of the mandrel and is afterward brought to a cylindrical shape by pressing of the wall against the mandrel by a follower roller.
Dependencies are inferred from the claim text.