Method for manufacturing screw rotor
AssigneeDaikin Industries, Ltd.
InventorTadashi Okada
Life of this patent
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Abstract
A plurality of helical grooves are formed in a workpiece having a cylindrical shape. Each of grooves is divided into a first portion including an end portion on a first end side of the workpiece and a second portion including an end portion on a second end side of the workpiece. A method of manufacturing a screw rotor of a screw compressor includes attaching a first end of the workpiece to a holder of a machine tool, finishing the first portion of each of the plurality of helical grooves by cutting, detaching the workpiece from the holder, attaching a second end of the workpiece detached from the holder to the holder, and finishing the second portion of each of the plurality of helical grooves by cutting.
Claims9
A method for manufacturing a screw rotor for a screw compressor by forming a plurality of helical grooves in a workpiece having a cylindrical shape, each of the plurality of helical grooves being divided into a first portion including an end portion on a first end side of the workpiece and a second portion including an end portion on a second end side of the workpiece, the method comprising:
- a first attachment step of attaching a first end of the workpiece to a holder of a machine tool;
- a first finishing step of finishing the first portion of each of the plurality of helical grooves by cutting after completion of the first attachment step;
- a detachment step of detaching the workpiece from the holder after completion of the first finishing step;
- a second attachment step of attaching a second end of the workpiece detached from the holder in the detachment step to the holder;
- and
- a second finishing step of finishing the second portion of each of the plurality of helical grooves by cutting after completion of the second attachment step.
Dependencies are inferred from the claim text.