버어 발생을 최소화하기 위한 미세 드릴가공의 절삭 조건

Cutting Conditions of Micro Drilling Process to Minimize Burr Generation

The micro drilling process is one of the most fundamental and popularly used process in the machining and assembling process because it has high productivity and high precision. However, the problems in micro-hole machining by micro drill, it is difficult to remove chip from drilled hole and supply cutting oil. So, it is necessary to establish optimum drilling condition and develop a new drilling process. The aim of the present study was to investigate the variation of thrust which was concerned with feed rate. Also, the optimum drilling condition which could minimize burr generation was examined in step feed machining process.