밀링가공 시 공구 경로에 따른 채터링 분석
Abstract
During the milling process, interaction between the cutting tool and workpiece can result in a chatter phenomenon. This not only adversely affects the workpiece's surface finish, but also the performance of the machine tool system. Stability lobe diagram is a widely accepted method to prevent chatter, in which the maximum permissible depth of cut is calculated for a given spindle speed. This paper introduces a comprehensive approach for deriving the stability lobe diagram using a simulation model. The method encompasses the dynamic identification of the tool tip, cutting force analysis, and stability calculations. Moreover, while most existing chatter prediction studies focus on slot milling, this paper uniquely offers a method to predict chatter stability, particularly during pocket milling processes.
Keywords:
Chatter, Milling process, Toolpath, Stability lobe diagramAcknowledgments
이 논문은 한국연구재단의 기초연구사업 지원(과제번호: 2021R1I1A1A01051407) 및 2024년도 정부(산업통상자원부)의 재원으로 한국에너지기술평가원 지원을 받아 수행된 연구임(20214000000520, 자원순환(재제조) 산업 고도화 인력양성).
References
-
Altintas, Y., Budak, E. 1995, Analytical Prediction of Stability Lobes in Milling, CIRP Annals, 44:1 357-362.
[https://doi.org/10.1016/S0007-8506(07)62342-7]
-
Altintas, Y., 2001, Analytical Prediction of Three Dimensional Chatter Stability in Milling, JSME International Journal Series C Mechanical Systems, JSME Int. J. Ser. C-Mech. Syst. Mach. Elem. Manuf., 44:3 717-723.
[https://doi.org/10.1299/jsmec.44.717]
-
Quintana, G., Ciurana, J., Teixidor, D., 2008, A New Experimental Methodology for Identification of Stability Lobes Diagram in Milling Operations, Int. J. Mach. Tools Manuf., 48:15 1637-1645.
[https://doi.org/10.1016/j.ijmachtools.2008.07.006]
-
Biermann, D., Baschin, A., 2009, Influence of Cutting Edge Geometry and Cutting Edge Radius on the Stability of Micromilling Processes, Production Engineering, 44:1 357-362.
[https://doi.org/10.1007/s11740-009-0188-7]
-
Filiz, S., Cheng, C.-H., Powell, K. B., Schmitz, T. L., Ozdoganlar, O. B., 2009, An improved tool–holder model for RCSA tool-point frequency response prediction, Precis. Eng.-J. Am. Soc. Precis. Eng., 33:1 26-36.
[https://doi.org/10.1016/j.precisioneng.2008.03.003]
-
Novakov, T., Jackson, M. J., 2010, Chatter Problems in Micro-and Macrocutting Operations, Existing Models, and Influential Parameters—A Review, Int. J. Adv. Manuf. Technol., 47 597-620.
[https://doi.org/10.1007/s00170-009-2213-6]
-
Schmitz, T. L., 2003, Chatter Recognition by a Statistical Evaluation of the Synchronously Sampled Audio Signal, J. Sound Vibr., 262:3 721-730.
[https://doi.org/10.1016/S0022-460X(03)00119-6]
-
Al-Regib, E., Ni, J., Lee, S. H., 2003, Programming Spindle Speed Variation for Machine Tool Chatter Suppression, Int. J. Mach. Tools Manuf., 23:1 121-122.
[https://doi.org/10.1016/S0890-6955(03)00126-3]
Master Course in the Department of Mechanical Convergence Engineering, Gyeongsang National University. Her research interest is Machine Tool and Composite Machining Process.
E-mail: dong2@gnu.ac.kr
Undergraduate Student in the Department of Mechanical Convergence Engineering, Gyeongsang National University. His research interest is Machine Tool.
E-mail: leemcjk@gnu.ac.kr
Assistant Professor of Mechanical Convergence Engineering at Gyeongsang National University. His research interests mainly include Composite Machining and Advanced Manufacturing Processes.
E-mail: jseo7717@gnu.ac.kr