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The Characteristics of the Milling Tool Deflection According to the Variation of Helix Angle

헬릭스각의 변화에 따른 밀링공구의 변위 특성 연구

  • 맹민재 (동서울대학 기계공학부) ;
  • 정준기 (홍익대학교 기계ㆍ시스템디자인공학과)
  • Published : 2004.06.01

Abstract

In the end milling operation the deflection of the cutter is an important factor affecting the accuracy of machining, with implications on the selection of cutting parameters and economics of the operation. Several studies were devoted to the end mill deflection and its effects, notably, providing a useful insight into the problem. Although the deflection affects adversely the accuracy, the flexibility of the cutter is beneficial in attenuating the overload in a sudden transient situation, as well as in attenuating chatter. The deflection of the end mill was studied both experimentally with strain gauge, tool dynamometer, laser measuring apparatus and on a finite element model of the cutting using ANSYS software. The deflection of machining tool with various helix angles was studied with FEM simulation and experiment. ANSYS analysis performed on the finite element model of the end mill provides deflection results which agree within 15.0% with the experimental ones.

Keywords

End Milling;Deflection;Strain Gauge;Helix Angle;Tool Dynamometer;Laser Vibrometer Controller

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