• Title/Summary/Keyword: 직선 베벨기어 금형

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Application of CAD/CAM System to the Manufacturing and the Verification of Straight Bevel Gear with Crown Teeth (크라운 치형을 갖는 직선 베벨기어의 제작 및 검증을 위한 CAD/CAM 시스템 활용)

  • Lee, Kang-Hee;Park, Yong-Bok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.9 no.2
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    • pp.270-275
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    • 2008
  • The straight bevel gear for automobile part has been manufactured by the cold forging instead of the gear machining tool for the mass production. The application to CAD/CAM system has been necessary in order to develop the precision product quickly by forging through the minimization of trial and error and confirm the reproducibility. In the study, the straight bevel gear with the crown teeth has been modelled by the CAD/CAM system. The master gear after the gearing test has been machined after the modelling, NC data generation and verification. The die for forging and the jig for machining has been manufactured using the master gear.

Machining of Straight Bevel Gear Die with Crown Teeth Using Ball End Mill (볼 엔드밀을 이용한 크라운 치형을 갖는 직선 베벨기어 금형 가공)

  • Lee, Kang-Hee;Lee, Ki-Yong;Ahn, Dong-Gyu;Park, Yong-Bok
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.17 no.6
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    • pp.104-110
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    • 2008
  • A lot of straight bevel gears have been manufactured by the cold forging process in order to improve the productivity and mechanical property of the product. The die for the cold forging of the gear needs high precision and reproducibility. In the study, cold forging die has been modeled by CAD/CAM and manufactured by machining center using ball end mill coated by (Al, Ti)N for heat-treated alloy steel(STD11, HRC 60). Through the measurement of the machined die, satisfactory dimensional accuracy and surface roughness were obtained. In the future, many 3-d cold forging dies will be directly machined instead of electric discharge machining.