Forging weldingflange can be divided into free forging, upsetting, extrusion, die forging,
closed die forging, closed upsetting, closed forging and closed upsetting
because there is no flash material utilization is high . With a process or a
few processes may be completed complex forging finishing. Because there is no
forging to reduce the force of the forging area, to strictly control the volume
of blank control forging die relative position and measurement of forging to
reduce the wear of forging die.
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