Title:
METHOD FOR MANUFACTURING SCREW ROTOR, SCREW ROTOR, AND SCREW COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2023/189873
Kind Code:
A1
Abstract:
Helical grooves (40) in this screw rotor (30) are divided into first portions (41) including end sections on a first-end (31) side of a workpiece (35), and second portions (42) including end sections on a second-end (32) side of the workpiece (35). The first end (31) of the workpiece (35) is received by a holding part (61) of a machine tool (60), and the first portions (41) of the helical grooves (40) are finished using a cutting process. The workpiece (35) is then temporarily removed form the holding part (61), and the second end (32) of the workpiece (35) is received by the holding part (61). In this state, the second portions (42) of the helical grooves (40) are finished using a cutting process.
Inventors:
OKADA TADASHI (JP)
Application Number:
PCT/JP2023/011066
Publication Date:
October 05, 2023
Filing Date:
March 22, 2023
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
B23C3/32; B23Q17/20; F04C18/16; F04C25/02
Domestic Patent References:
| WO2004089569A1 | 2004-10-21 |
Foreign References:
| JP2009281181A | 2009-12-03 | |||
| US6122824A | 2000-09-26 |
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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