Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Characteristics of Ball End Milling and Rotary Die-sinking Electrical Discharge Machining for the Cutting Inclination Location

가공경사면 위치에 따른 볼엔드밀가공과 회전식 형조방전가공 특성

  • 왕덕현 (경남대학교 기계자동화공학부) ;
  • 김원일 (경남대학교 기계자동화공학부) ;
  • 박성은 (경남대학교 대학원 기계공학과) ;
  • 박창수 (경남대학교 대학원 기계공학과)
  • Published : 2002.10.01
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Abstract

In this study, work materials of the ree form surface shape was machined by ball end mill cutter according to the change of cutting location and depth, and the acquired data of cutting force, tool deflection and shape accuracy were analyzed. Cutting force results were obtained with tool dynamometer and tool deflection values were measured by a couple of eddy-current sensors. Shape accuracy was obtained by roundness tester and surface profile measuring machine. As inclination angle was decreased, cutting force was increased. Cutting force showed large value at $105^{\circ}$ and $150^{\circ}$. Tool deflection was less at down milling than at up milling, decreased at 45$^{\circ}$ and 120$^{\circ}$, and shown large tool deflection at $150^{\circ}$. Roughness values were found to be bad in the inside of surface shape tool deflection. Surface accuracy was obtained better precision in down milling than in up milling.

Keywords

References

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