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A Study on the Characteristics of Deep Hole Drilling Process Using Single Edge Drill with Small Diameters  

최성주 (한국기술교육대학교 기계정보공학부)
이우영 (한국기술교육대학교 기계정보공학)
박원규 (충남대학교 대학원 기계공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.13, no.2, 2004 , pp. 1-8 More about this Journal
Abstract
Applications of the deep hole drilling process can be found in many industries ranging from large aerospace manufacturer to small tool and die shop. Deep hole drilling process with small diameter generally requires high quality and accuracy. But problems which may arise or result from the deep hole drilling process include drill breakage, the generation of a finished part surface which does not satisfy required quality, and process instability. To guaranty the required machining quality and accuracy, it is important to understand and improve the deep hole drilling process. In this study, deep hole drilling experiments using tingle edge drill with small diameter under 2mm have been carried out for difficult to cut materials such as C42CrMo4 and C45pb and the experimental results were analyzed. Feed force and torque versus feed showed linear relationship in both materials. The feed force and torque are decreased as cutting speed is increased but the trends are not uniform in C42CrMo4.
Keywords
Deep Hole Drilling; Single Edge Drill; Torque; Feed Force; Chip Formation;
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