Cutting Characteristics in Down-End Milling with Different Helix Angles

하향엔드밀링시 헬릭스각에 따른 절삭특성변화

  • 이영문 (경북대학교 기계공학부) ;
  • 장승일 (경북대 기계공학부) ;
  • 서민교 (경북대 대학원 기계공학과)
  • Published : 2003.10.01


In end milling process, undeformed chip thickness and cutting force vary periodically with phase change of the tool. Recently, a model has been proposed to simulate the shear and friction characteristics of an up-end milling process in terms of the equivalent oblique cutting to this. In the current study, the varying undeformed chip thickness and the cutting forces in a down-end milling process have been replaced with the equivalent ones of oblique cutting. And, the down-end milling characteristics of SM45C has been compared with that of the up-end milling previously presented with different helix angles.