한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

한국정밀공학회 (Korean Society for Precision Engineering)
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2단계공정을 이용한 헬리컬기어 압출에 관한 연구

A Study on the Extrusion Using Two-Step Processes for Manufacturing Helical Gear

  • 정성윤 (부산대학교 기계기술연구소) ;
  • 박준홍 (동아대학교 신소성재RIC센터) ;
  • 김창호 (동의대학교 기계공학과) ;
  • 장영준 (부산대학교 기계공학부) ;
  • 김철 (부산대학교 기계기술연구소)
  • 발행 : 2007.08.01
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초록

In this study, focusing on reducing a load in forming helical gears, the extrusion using two-step processes for manufacturing helical gear is proposed. The process is composed of the extrusion step in which spur gear to be used as a preform in next step is formed, and the torsion step in which the preform of spur gear is formed to helical gear. Upper-bound theory for the two-step process is applied and compared with the results of experiment. The result of upper-bound solution has a good agreement with that of the experiment and the FE analysis. The newly proposed method can be used as an advanced forming technique to remarkably reduce a forming load, to prolong a tool life, and to replace the conventional forming process of helical gears. Results obtained from the extrusion using two-step processes enable the designer and manufacturer of helical gear to be more efficient in this field.

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참고문헌

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  6. Choi, J. C., Choi, Y. and Tak, S. J., 'The forging of helical gears (II) : comparisons of the forging processes,' International Journal of Mechanical Sciences, Vol. 41, No.6, pp. 725-739, 1999 https://doi.org/10.1016/S0020-7403(98)00034-4
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