Mikro işlemede takım aşınması-kanal geometrisi ilişkisi üzerine deneysel bir çalışma

Yıl 2018, Cilt: 33 Sayı: 4, 1285 - 1298, 19.12.2018

Kubilay Aslantaş Adem Çiçek , Safiye Gülbin Çelik

https://doi.org/10.17341/gazimmfd.416425

Cited By: 1

Öz

Bu çalışmada, mikro frezeleme işleminde takımda meydana gelen aşınmanın kanal geometrisi üzerinde etkisi deneysel olarak araştırılmıştır. Deneylerde, iş parçası olarak Inconel 718 alaşımı tercih edilmiş olup, sabit kesme parametreleri dikkate alınmıştır. Deneyler kuru kesme şartlarında yapılmış olup, ardışık kesme işlemleriyle mikro kanallardaki boyutsal değişim, çapak oluşumu ve kesme kuvvetlerindeki değişim araştırılmıştır. Elde edilen sonuçlara göre takım çapında meydana gelen çevresel aşınma artan kesme mesafesi ile artmaktadır. Takımda çevresel aşınmanın yanı sıra eksenel bir aşınma da meydana gelmektedir. Eksenel aşınma, takım köşe radüsünün zamanla değişmesine neden olmaktadır. Köşe radüsünün artması kanal geometrisinin bozulmasına ve çapak oluşumunun artmasına neden olmaktadır. Ayrıca kesici takıma yapışan talaş ta köşe radüsünün büyümesine neden olmaktadır. Bunun sonucunda kesme işlemi, kazınma ağırlık bir kesmeye dönüşmekte ve kesme kuvvetleri de artmaktadır.

Anahtar Kelimeler

Mikro frezeleme, Takım aşınması, Çapak oluşumu, Kanal geometrisi

Kaynakça

• De Chiffre, L., Kunzmann, H., Peggs, G.N., Lucca, D.A., Surfaces in Precision Engineering, Microengineering and Nanotechnology Annals of the CIRP, 52(2), 561–577, 2003.
• Alting, L., Kimura, F., Hansen, H.N., Bissacco, G., Micro Engineering, Annals of CIRP, 52(2), 635-657, 2003.
• Dhanorker A., Özel, T., Meso/Micro Scale Milling for Micro-Manufacturing, International Journal of Mechatronics and Manufacturing Systems, 1(1), 23-42, 2008.
• Masuzawa, T., State of the Art of Micromachining, Annals of CIRP, 49(2), 473–488, 2000.
• Chae, J., Park, S.S., Freiheit, T., Investigation of Micro-Cutting Operations, International Journal of Machine Tools and Manufacture, 46, 313-332, 2006.
• Li, C., Lai, X., Li, J.N., Modeling of Three-Dimensional Cutting Forces in Micro-End-Milling, Journal of Micromechanics and Microengineering, 17, 671-678, 2007.
• Zhu, K., Wong, Y. S., Hong, G. S., Multi-Category Micro-Milling Tool Wear Monitoring with Continuous Hidden Markov Models . Mechanical Systems and Signal Processing, 23, 547– 560, 2009.
• Heamawatanachai, S., Bamberg, E., Design and Characterization of a PZT Driven Micromachining Tool Based on Single-Point Tool Tip Geometry, Precision Engineering, 33, 387-394, 2009.
• Vogler, M.P., DeVor, R.E., Kapoor, S.G., On the Modeling and Analysis of Machining Performance in Micro Endmilling Part I: Surface generation, ASME Journal of Manufacturing Science and Engineering, 126, 685- 694, 2004.
• Bao, W.Y., Tansel, I.N., Modeling Micro-End-Milling Operations. Part I: Analytical Cutting Force Model, International Journal of Machine Tools and Manufacture, 40, 2155–2173, 2000.
• Kang, I.S., Kim, J.S., Kim, J.H., Kang, M.C., Seo, Y.W., A Mechanistic Model of Cutting Force in the Micro End Milling Process, Journal of Materials Processing Technology, 187–188, 250-255, 2007.
• Shimada, S., Ikawa, N., Tanaka, H., Ohmori, G., Uchikoshi, J., Molecular Dynamics Analysis of Cutting Force and Chip Formation Process in Microcutting, Journal of the Japan Society for Precision Engineering, 59(12), 2015–2021, 1993.
• Yuan, Z.J., Zhou, M., Dong, S., Effect of Diamond Tool Sharpness on Minimum Cutting Thickness and Cutting Surface Integrity in Ultra Precision Machining, Journal of Materials Processing Technology, 62(4), 327–330, 1996.
• Kim, C.J., Bono, M., Ni, J., Experimental Analysis of Chip Formation in Micro Milling, Transactions of the North American Manufacturing Research Institute of SME, 30, 247-254, 2002.
• Sun, X., Cheng, K., Micro/Nano-Machining through Mechanical Cutting, Manufacturing Engineering and Technology, Editör : Qin, Y., Elsevier, 24-38, 2010.
• Spath, D., Huntrup, V., Micro-milling of Steel for Mold Manufacturing Influences of Material, Tools and Process Parameters, Precision Engineering Nanotechnology, Proceedings of the First International Euspen Conference, 31 May-4 June, Bremen, Germany, 203–206, 1999.
• Li, P., Micromilling of Hardened Tool Steels, Technical University of Delft, PhD Thesis, 160p, Delft, 2009.
• Liu, X., DeVor, R. E., Kapoor, S. G., An Analytical Model for the Prediction of Minimum Chip Thickness in Micromachining, Journal of Manufacturing Science and Engineering, 128, 474-481, 2006.
• Xiao, M., Sato, K., Karube, S., Soutone, T., The Effect of Tool Nose Radius in Ultrasonic Vibration Cutting of Hard Metal, International Journal of Machine Tools and Manufacture, 43, 1375–1382, 2003.
• Filiz, S., Conley, C.M., Wasserman, M.B., Özdoganlar, O.B., An Experimental Investigation of Micro Machinability of Copper 101 Using Tungsten Carbide Micro Endmill, International Journal of Machine Tools and Manufacture, 47, 1088-1100, 2007.
• Aramcharoen, A., Mativenga, P.T., Tool Wear Modes in Micro/Meso Scale Milling of Hardened Die Steel. 3rd Cirp International Conference High Performance Cutting, 12-13 June, Dublin, Ireland, 179-188, 2008.
• Li, H., Lai, X., Li, C., Feng, J., Ni, J., Modelling and experimental Analysis of the Effects of Tool Wear, Minimum Chip Thickness and Micro Tool Geometry on the Surface Roughness in Micro-End-Milling, Journal of Micromechanical and Microengineering, 18(2), 1-12, 2008.
• Schaller, T., Bohn, L., Mayer, J., Schubert, K., Microstructure Grooves with a Width of Less than 50 Micrometer Cut with Ground Hard Metal Micro End Mills, Precision Engineering, 23, 229–235, 1999.
• Fang, F.Z., Liu, Y.C., On Minimum Exit-Burr in Micro Cutting, Journal of Micromechanics and Microengineering, 14, 984-988, 2004.
• Günay, M., Kaçal, A., Turgut Y., Optimization of machining parameters in milling of Ti-6Al-4V alloy using taguchi method, Journal of New World Sciences Academy Engineering Sciences, 6-1(428-440), 2010.
• Korkut, İ., Dönertaş, M.A., Kesme parametrelerinin frezelemede oluşan kesme kuvvetleri üzerine etkileri, Politeknik dergisi, Ankara, 6(1),385-389, 2003,
• Ucun İ, Aslantas K, Bedir F., An experimental investigation of the effect of coat-ing material on tool wear in micro milling of Inconel 718 super alloy, Wear ;300(1–2), 8–19, 2013.
• Aslantas, K., Hopa, H.E., Percin, H., Ucun, İ., Çicek, A., Cutting performance of nano-crystalline diamond (NCD) coating in micro-milling of Ti 6 Al 4 V alloy, Precision Engineering, 45 (1), 55-66, 2016.