고정밀 가공을 위한 Bunishing Drill의 Guide Pad 영향

The influence of Guide Pads in the High Precision Cutting Process of Burnishing Drill

The effects of guide pads on burnishing action and accuracy of machined hole are investigated in drilling with burnishing drill using a speciaaly designed tool experimentally. The cutting forces are balanced at the small forward regions of guide pads. The burnishing action takes place under a high contact pressure between the bore wall and those regions. The over size mechanism of machined hole by the guide pads is discussed.