인코넬의 미세구멍 가공에 관한 실험적 연구

The necessity of micro drilling becomes more and more increasing in the whole field of industry Micro drilling, however, has so many technical problems particularly when drilling the kinds of difficult to cut material such as Inconel It is, therefore, essential to select the proper cutting condition and steep feed etc for increasing the tool life and decreasing the cutting time. The purpose of this paper is to investigate experimentally about cutting speed and feed which affect on tool life and estimate about the effect of step feed in micro drilling for Inconel 718.