Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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5-axis Machining of Impellers using Geometric Shape Information and a Vector Net

기하학적 형상정보와 벡터망을 이용한 임펠러의 5축가공

  • Hwang, Jong-Dae (Department of Mechanical System, Busan Campus of Korea Polytechnics) ;
  • Yun, Il-Woo (Department of Mechanical System, Busan Campus of Korea Polytechnics)
  • 황종대 (한국폴리텍대학 부산캠퍼스 기계시스템과) ;
  • 윤일우 (한국폴리텍대학 부산캠퍼스 기계시스템과)
  • Received : 2020.01.06
  • Accepted : 2020.01.26
  • Published : 2020.03.31
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Abstract

Two rotational motions of the 5-axis machine tool maximize the degree of freedom of the tool axis vector, which improves tool accessibility; however, this lowers feed speed and rigidity, which impairs machining stability. In addition, cutting efficiency is lowered when compared with a flat end mill because typically, the ball-end mill is used when machining by rotational motion. This study increased cutting efficiency by using a corner radius flat end mill during impeller roughing. Furthermore, we proposed a fixed controlled machining of the rotary motion using geometric shape information to improve the feed speed and machining stability. Finally, we proposed a finishing tool path generation method using a vector net to increase the convenience and practicality of tool path generation. To verify its effectiveness, we compared the machining time, shape accuracy, and surface quality of the proposed method and an existing dedicated module.

Keywords

References

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