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김형국(Hyung-Kook Kim),연규현(Kyu-Hyun Yon),송성종(Seung-Jong Song) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
On this study, technical aspects were reviewed to drill a series of micro holes (φ0.10) over 200 within a few micron tolerance in diameter and position on the stainless steel material. Dedicated tools & jigs were designed and manufactured and optimum cutting conditions were found. On this micro hole drilling process, guide drill and step feeding were applied to help chip discharge, prevent drill breakage and finally improve the accuracy of positioning and roundness. The processing results indicated that most holes are distributed within a few micron tolerance in diameter and position intervals.