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An Evaluation of Machining Characteristics in Micro-scale Milling Process by Finite Element Analysis and Machining Experiment  

Ku, Min-Su (부산대학교 대학원 기계공학부)
Kim, Jeong-Suk (부산대학교 기계공학부, 정밀정형 및 금형가공연구소(ERC/NSDM))
Kim, Pyeoung-Ho (부산대학교 기계공학부)
Park, Jin-Hyo (부산대학교 기계공학부)
Kang, Ik-Soo (부산대학교 기계공학부)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.20, no.1, 2011 , pp. 101-107 More about this Journal
Abstract
Analytical solution of micro-scale milling process is presented in order to suggest available machining conditions. The size effect should be considered to determine cutting characteristics in micro-scale cutting. The feed per tooth is the most dominant cutting parameter related to the size effect in micro-scale milling process. In order to determine the feed per tooth at which chips can be formed, the finite element method is used. The finite element method is employed by utilizing the Johnson-Cook (JC) model as a constitutive model of work material flow stress. Machining experiments are performed to validate the simulation results by using a micro-machining stage. The validation is conducted by observing cutting force signals from a cutting tool and the conditions of the machined surface of the workpiece.
Keywords
Micro-scale Milling Process; Size Effect; Feed Per Tooth; Finite Element Analysis;
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