Sughrue Mion, PLLC
Die for forging rotor, forge production system and forging method using the die, and rotor
A forging die for forging a cylindrical rotor having a plurality of vane-accommodating grooves which extend toward the axis of the rotor, includes an upper die; a lower die having a mold cavity in its center portion, and a plurality of vane-accommodating-groove-forming portions which protrude inward from an inner wall which defines the mold cavity; and a spacer having a plurality of shell segments for determining a shape of a side wall of the cylindrical rotor which is segmented by the vane-accommodating grooves, and a flange for joining the shell segments is disclosed. The spacer is provided in the interior of the mold cavity of the lower die. A forging production system for producing the rotor; a method for producing the rotor; and the rotor are also disclosed. The forging die produces a rotor of high dimensional accuracy at low cost, which die enables production of vane-accommodating grooves of high accuracy, and enables prevention or reduction of working required for removing chamfers of the vane-accommodating grooves.
Showa Denko Kabushiki Kaisha
B B H B B B
B21J B21K H02K B21J B21K B21J
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Hidemi Yoshiyuki Keiichi
Yamada Anazawa Yokoi