KESİCİ TAKIM BAĞLAMA UZUNLUĞUNUN MİKRO FREZELEMEDE TAKIM AŞINMASI,KUVVETLER VE ÇAPAK BOYUTU ÜZERİNDEKİ ETKİLERİ

Yıl 2017, Cilt: 19 Sayı: 55, 229 - 237, 01.01.2017

Emel Kuram

Öz

Bu çalışmada Inconel 718 süperalaşımının mikro
frezelenmesinde kesici takım bağlama uzunluğunun takım
aşınması, kesme kuvvetleri ve çapak oluşumu üzerindeki etkisi
incelenmiştir. Kanal işleme deneyleri sabit devir sayısı, ilerleme ve
talaş derinliği değerlerinde yapılmıştır. Kesici takım bağlama
uzunluğu ise 10, 15 ve 20 mm olarak üç farklı değerde seçilmiştir.
Takım aşınması olarak kesici takımdaki çap azalması dikkate
alınmıştır. Kuvvet olarak x ve y yönlerindeki ortalama kuvvetler
kaydedilmiştir. İşleme sonrasında kanal üst yüzeyinde meydana
gelen çapakların genişliği hem aynı yönlü frezeleme hem de zıt
yönlü frezeleme tarafında ölçülmüştür. Deneysel sonuçlardan
takım çapındaki azalmanın artan bağlama uzunluğu ile arttığı
bulunmuştur. Kuvvet ve çapak genişliği değerleri bağlama
uzunluğundaki artış ile artmıştır

Anahtar Kelimeler

Mikro Frezeleme, Kesici Bağlama Uzunluğu, Takım Aşınması, Kuvvet, Çapak Genişliği

Effects of the Cutting Tool Overhang Length on the Tool Wear, Forces andBurr Dimension in Micro-Milling

Öz

In this study, the effect of cutting tool overhang length on the tool wear, cutting forces and burr formation was investigated during micro-milling of Inconel 718 superalloy. Slot machining experiments were conducted at constant values of spindle speed, feed and depth of cut values. Three different values of cutting tool overhang length were selected, namely 10, 15 and 20 mm. Reduction in the diameter of cutting tool was chosen as a measure of tool wear. Average forces at x and y directions were recorded as force. Burr width occurred on the top of slot after machining was measured at both down and up milling side. From experimental results, it was found that the reduction in tool diameter increased with increasing overhang length. Force and burr width values increased with the increase in overhang length

Anahtar Kelimeler

Micro-Milling, Cutting Tool Overhang Length, Tool Wear, Force, Burr Width

Kaynakça

• Kuram, E., Ozcelik. B. 2013. Multi- Objective
• Taguchi Based Grey Relational Analysis for Micro-Milling of Al Material with Ball Nose End Mill, Measurement, Cilt. 46, s. 1849
• Kuram, E., Ozcelik, B. 2016. Effects of Tool Paths and Machining
• Parameters on the Performance in Micro-Milling of Ti6Al4V Titanium with Attachment, International Journal of Technology, Cilt. 84, s. 691-703. Kuram, E., Ozcelik, B. 2016. Micro
• Milling Performance of AISI 304 Stainless Steel Using Taguchi Method and Fuzzy Logic Modelling, Journal Manufacturing, Cilt. 27, s. 817-830. Intelligent Kuram, E., Ozcelik, B. Optimization of Machining Parameters during Micro-Milling of Ti6Al4V Titanium Alloy and Inconel 718 Materials Using Taguchi Method, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, article in press. Kuram, E. 2015. Yumuşak ve Sert Malzemelerin Frezelenmesinde Şartlarının
• Doktora Tezi, Kocaeli: Gebze Teknik Mühendisliği Bölümü. Makine Wu, T., Cheng, K. 2012. An
• Investigation on the Cutting Performance of Nano-Crystalline Diamond Coatings on a Micro-End Mill, Proceedings of the Institution of Mechanical Engineers, Part B: Journal Manufacture, Cilt. 226, s. 1421- Engineering
• Wu, T., Cheng, K., Rakowski, R. Investigation on Tooling Geometrical Effects of Micro Tools and the Associated Micro Milling Performance, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, Cilt. 226, s. 1442
• Foy, K., Wei, Z., Matsumura, T., Huang, Y. 2009. Effect of Tilt Angle on Cutting Regime Transition in
• Glass Micromilling, International Journal of Machine Tools & Manufacture, Cilt. 49, s. 315-324. Rahman, M., Kumar, A.S., Prakash, J.R.S. 2001. Micro Milling of Pure
• Copper, Journal of Materials Processing Technology, Cilt. 116, s. 43. Li, H.Z., Wang, J. 2013. A Cutting
• Forces Model for Milling Inconel Alloy Based on a Material Constitutive Law, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, Cilt. 227, s. 1761-1775.
• Mian, A.J., Driver, N., Mativenga, P.T. 2011. Identification of Factors that Dominate Size Effect in Micro
• Machining, International Journal of Machine Tools & Manufacture, Cilt. , s. 383-394. Lu, X., Jia, Z., Wang, H., Si, L., Liu, Y., Wu, Appearance Mechanism of Coated Carbide Tools in Micro-Milling of Inconel Lubrication and Tribology, Cilt. 68, s. 267-277. Industrial Gök, A., Göloğlu, C., Demirci, H.İ. Yüzeylerin Frezelenmesinde Takım Sehimine Bağlı Belirlenmesi, Mühendislik-Mimarlık Dergisi, Cilt. 29, s. 365-374. Parmak Küresel Form Hatalarının Üniversitesi Fakültesi Mamedov, A., Lazoğlu, İ. 2014. CNC ile Talaşlı İşlemede Kuvvet ve Titreşim Ölçümü, Mühendis ve Makina, Cilt. 55, s. 25-28.
• Oliaei, S.N.B., Karpat, Y. 2016.
• Influence of Tool Wear on Machining Deflections during Micro Milling, International Journal of Advanced Manufacturing Technology, Cilt. 84, s. 1963-1980. and Tool
• Uriarte, L., Herrero, A., Zatarain, M., Santiso, G., Lopez de Lacelle, L.N., Lamikiz, A., Albizuri, J. 2007. Error Budget
• Assessment in a Micromilling Machine Equipped with Tools Less than 0.3 mm in Diameter, Precision Engineering, Cilt. 31, s. 1-12. Rodrigues, P., Labarga, J.E. 2015. Tool
• Micromilling Process, International Journal of Advanced Manufacturing Technology, Cilt. 76, s. 199-207. Mijuskovic, G., Krajnik, P., Kopac, L. Analysis of Tool Deflection in Micro Electrodes, International Journal of Advanced Technology, Cilt. 76, s. 209-217. Fard, M.J.B., Bordatchev, E.V. 2013.
• Experimental Study of the Effect of Tool Orientation in Five-Axis Micro-Milling of Brass Using Ball- End Mills, International Journal of Advanced Technology, Cilt. 67, s. 1079-1089.
• Mian, A.J., Driver, N., Mativenga, P.T. 2010. A Comparative Study of
• Material Phase Effects on Micro- Machinability Materials, International Journal of Advanced Technology, Cilt. 50, s. 163-174. Aramcharoen, A., Mativenga, P.T. Size Effect and Tool Geometry in Micromilling of Tool Steel, Precision Engineering, Cilt. , s. 402-407. Chen, M.J., Ni, H.B., Wang, Z.J., Jiang, Y. 2012. Research on the Modeling of Burr Formation Process in
• Micro-Ball End Milling Operation on Ti-6Al-4V, International Journal of Technology, Cilt. 62, s. 901-912. Aurich, J.C., Reichenbach, I.G., Schüler, G.M. 2012. Manufacture and Application of Ultra-Small
• Micro End Mills, CIRP Annals – Manufacturing Technology, Cilt. 61, s. 83-86. Li, K.-M., Chou, S.-Y. 2010. Experimantal
• Minimum Quantity Lubrication in Near Micro-Milling, Journal of Materials Processing Technology, Cilt. 210, s. 2163-2170. of