AA2024 Alaşımlarının Delinmesinde Çevre Dostu İmalat için Kullanılan İçten ve Dıştan MMY Yöntemlerinin İşleme Performansına Etkisi: YSA ve Taguchi Analizleri için bir Karşılaştırma

Abstract

Son yıllarda sürdürülebilir imalata olan ilgi, ekonomik ve çevre dostu Minimum Miktarda Yağlama (MMY) yöntemine artan bir talep oluşturmuştur. Ancak, delme operasyonlarında içten ve dıştan MMY uygulamalarını karşılaştıran yeterli çalışma bulunmamaktadır. Bu çalışmanın amacı, MMY yönteminin içten ve dıştan uygulanmasının delme performansı üzerindeki etkilerini incelemektir. Taguchi L9 deney tasarımı kullanılarak AA2024 alüminyum alaşımı, üç farklı soğutma koşulunda (içten MMY, dıştan MMY, kuru), üç farklı kesme hızı (100, 125, 150 m/dk) ve üç farklı ilerleme (0.10, 0.15, 0.20 mm/dev) ile delinmiştir. Yüzey pürüzlülüğü (Ra) performans kriteri olarak belirlenmiş, her deneyde 30 tekrar yapılmış ve her şart için ortalama Ra değerleri hesaplanmıştır. Deneyler sonunda, en düşük Ra değeri (0.5 µm), en düşük kesme hızı (100 m/dk) ve ilerleme (0.1 mm/dev) parametrelerinin kullanıldığı içten MMY koşulunda elde edilmiştir. Dıştan MMY koşulunda kuru kesmeye yakın Ra sonuçları gözlenmiştir. Yapılan ANOVA analizi, Ra değerleri üzerinde en büyük etkiye sahip kontrol faktörünün soğutma koşulu olduğunu ortaya koymuştur. Ayrıca, 30. delikten sonra takımların aşınması SEM görüntüleriyle incelenmiş ve içten MMY'de minimum deformasyon gözlenmiştir. Deneylerde ölçülen Ra verilerine YSA ve Taguchi analizleri uygulanmıştır. Ölçülen Ra verilerinin, Taguchi yaklaşımı kullanılarak tahmin edilen verilerle %97, YSA yaklaşımı kullanılarak tahmin edilen verilerle %99 uyum sağladığı görülmüştür.

Keywords

• Delik delme
• İçten MMY
• Dıştan MMY
• Taguchi
• ANN

The Effect of Internal and External MQL Methods Used for Environmentally Friendly Manufacturing on Machining Performance in Drilling AA2024 Alloys: A Comparison for ANN And Taguchi Analyzes

Abstract

In recent years, the interest in sustainable manufacturing has created an increasing demand for the economical and environmentally friendly Minimum Quantity Lubrication (MQL) method. However, there are not enough studies comparing internal and external MQL applications in drilling operations. The aim of this study is to investigate the effects of internal and external MQL application on drilling performance. Using Taguchi L9 experimental design, AA2024 aluminum alloy was drilled under three different cooling conditions (internal MQL, external MQL, dry), three different cutting speeds (100, 125, 150 m/min) and three different feeds (0.10, 0.15, 0.20 mm/rev). Surface roughness (Ra) was determined as the performance criterion, 30 repetitions were made in each experiment and the average Ra values were calculated for each condition. At the end of the experiments, the lowest Ra value (0.5 µm) was obtained in the internal MQL condition where the lowest cutting speed (100 m/min) and feed (0.1 mm/rev) parameters were used. In the external MQL condition, Ra results close to dry cutting were observed. The ANOVA analysis revealed that the control factor with the greatest effect on Ra values was the cooling condition. In addition, tool wear after the 30th hole was examined with SEM images and minimum deformation was observed in the internal MQL. ANN and Taguchi analyses were applied to the Ra data measured in the experiments. It was observed that the measured Ra data were in agreement with the data estimated using the Taguchi approach by 97% and with the data estimated using the ANN approach by 99%.

Keywords

• Drilling
• Internal MQL
• External MQL
• Taguchi
• ANN

References

1. [1] Çakır, A., 2009. AA7075 and AA6013 Investigation of cutting parameter on aluminium alloys during drilling operations. Gazi University, Graduate School of Natural and Applied Sciences, Master Thesis, Ankara.
2. [2] Çakır, A., 2015. Investigation of the effect of cooling conditions on cutting performance in drilling AA7075 and AA2024 aluminum materials. Gazi University, Graduate School of Natural and Applied Sciences, Ph.D. Thesis, Ankara.
3. [3] Mills, B., Redford, A.H., 1983. Machinability of Engineering Materials. Applied Sci. Publishers Ltd.
4. [4] Akkurt, M., 1998. Metal Cutting Methods and Machine Tools. Birsen Press, pp. 23-90.
5. [5] Tonshoff, H.L., Spintig, W., Konig, W., Neises, A., 1994. Machining of holes developments in drilling technology. Annals of the CIRP, Vol. 43(2), pp. 551-561.
6. [6] Ogawa, M., Inose, M., Arai, M., Saga, T., 1994. Micro drilling of 5056 wrought aluminum alloy. Journal of Japan Institute of Light Metals, Vol. 44(9), pp. 486-491. DOI: 10.2464/jilm.44.486.
7. [7] Pirtini, M., Lazoglu, I., 2005. Forces and hole quality in drilling. International Journal of Machine Tools & Manufacture, Vol. 45(1), pp. 1271-1281. DOI: 10.1016/j.ijmachtools.2005.01.004.
8. [8] Taşgetiren, S., Aslantaş, K., 2000. A new design of hard metal insert holder for cutting on turning. 3rd GAP Engineering Congress, pp. 150-157.

9. [9] Mendi, F., 1996. Machine tool theory and calculations. Gazi Bookstore, pp. 5-40.
10. [10] Demir, H., Ulaş, H.B., Zeyveli, M., 2009. Desired properties of cutting fluids used in machining. 5th International Advanced Technologies Symposium (IATS’09), 13-15 May, Karabük, pp. 1327-1331.
11. [11] Silliman, J.D., 1992. Cutting and grinding fluids: selection and application. Society of Manufacturing Engineers.
12. [12] Yücel, E., Günay, M., Ayyıldız, M., Erkan, Ö., Kara, F., 2011. Effects of cutting fluids used in machining on human health and sustainable use. 6th International Advanced Technologies Symposium (IATS’11), pp. 116-121.
13. [13] Çakır, A., Kavak, N., Şeker, U., 2017. Recycling of cutting fluids used in machining for sustainable production. Engineer and Machinery, Vol. 58(684), pp. 15-30.
14. [14] Autret, R., Liang, S.Y., 2003. Minimum quantity lubrication in finish hard turning. Proceedings of International Conference on Humanoid. Nano Technology, Information Technology, Communication and Control, Environment and Management (HNICEM’03), Manila, Philippines, pp. 1-9.
15. [15] Çakır, M.C., 2017. Modern methods of chip removal. Dora Publishing.
16. [16] Dhar, N.R., Ahmed, N.T., Islam, S., 2007. An experimental investigation on effect of minimum quantity lubrication in machining AISI 1040 steel. International Journal of Machine Tools & Manufacture, Vol. 47(5), pp. 748-753. DOI: 10.1016/j.ijmachtools.2006.09.017.
17. [17] Sreejith, P.S., 2008. Machining of 6061 aluminium alloy with MQL dry and flooded lubricant conditions. Materials Letters, Vol. 62(2), pp. 276-278.
18. [18] Çakır, A., Yağmur, S., Kavak, N., Küçüktürk, G., Şeker, U., 2015. The effect of minimum quantity lubrication under different parameters in the turning of AA7075 and AA2024 aluminium alloys. International Journal of Advanced Manufacturing Technology, Vol. 81, pp. 2515-2521. DOI: 10.1007/s00170-015-7878-4.
19. [19] Rahim, E.A., Sasahara, H.A., 2011. A study of the effect of palm oil as MQL lubricant on high-speed drilling of titanium alloys. Tribology International, Vol. 44(3), pp. 309-317. DOI: 10.1016/j.triboint.2010.10.032.
20. [20] Bhowmick, S., Alpas, A.T., 2008. Minimum quantity lubrication drilling of aluminium-silicon alloys in water using diamond-like carbon coated drills. International Journal of Machine Tools & Manufacture, Vol. 48(12-13), pp. 1429-1443. DOI: 10.1016/j.ijmachtools.2008.04.010.
21. [21] Krishnan, P.G., Raj, S.D., 2023. Machinability and tribological analysis of used cooking oil for MQL applications in drilling AISI 304 using a low-cost pneumatic operated MQL system. Journal of Manufacturing Processes, Vol. 104, pp. 348-371. DOI: 10.1016/j.jmapro.2023.09.028.
22. [22] Buss, L., Schumski, L., Sölter, J., Avila, K., Karpuschewski, B., Fritsching, U., 2023. Minimum Quantity Lubrication (MQL) multiphase dynamics of a vibration-assisted drilling process. Procedia CIRP, Vol. 117, pp. 420-425.
23. [23] Kuzu, A.T., Alma, U.A., Rahimzadeh Berenji, K., Bakkal, M., 2014. Experimental investigation of CGI drilling adapted with external MQL system. 16th International Conference on Machine Design and Production (UMTIK), June 30 – July 03, İzmir, p. 63.
24. [24] Han, S., Faverjon, P., Valiorgue, F., Rech, J., 2018. Prediction and modeling of thermal distortion in sequential MQL drilling of AlSi7 cylindrical parts. Procedia CIRP, Vol. 77, pp. 336-339. DOI: 10.1016/j.procir.2018.09.029.
25. [25] Ali, S.Y., Yao, Y., Wu, B., Zhao, B., Ding, W., Jamil, M., Khan, A., Baig, A., Liu, Q., Xu, D., 2024. Recent developments in MQL machining of aeronautical materials: A comparative review. Chinese Journal of Aeronautics. DOI: 10.1016/j.cja.2024.01.018.
26. [26] Chen, Y.H., Tam, S.C., Chen, V.L., Zheng, H.Y., 1996. Application of Taguchi method in the optimization of laser micro-engraving of photomask. International Journal of Material & Product Technology, Vol. 11(3-4), pp. 333-334. DOI: 10.1504/IJMPT.1996.036336.
27. [27] Çetin, M.H., Ozcelik, B., Kuram, E., Demirbas, E., 2011. Evaluation of vegetable-based cutting fluids with extreme pressure and cutting parameters in turning of AISI 304L by Taguchi method. Journal of Cleaner Production, Vol. 19, pp. 2049-2056. DOI: 10.1016/j.jclepro.2011.07.013.
28. [28] Cobden, R., 1994. Aluminium: Physical properties, characteristics and alloys. European Aluminium Association, TALAT-1501, pp. 36-252.
29. [29] Rogov, V.A., Siamak, G., 2013. Optimization of surface roughness and vibration in turning of aluminum alloy AA2024 using Taguchi technique. International Journal of Mechanical, Industrial Science and Engineering, Vol. 7(11), pp. 869-878.
30. [30] Trent, E.M., 1989. Metal cutting. Butterworths Press, pp. 1-171.
31. [31] Kıvak, T., 2012. Investigation of the effects of cryogenic treatment applied to cutting tools on the drillability of Ti-6Al-4V alloy. Gazi University, Ph.D. Thesis, Ankara.