Pengaruh Metode Minimum Quantity Lubrication (MQL) Terhadap Nilai Kekasaran Permukaan

Dicky Aprilian Nugraha; Rika Dwi Hidayatul Qoryah; Mahros Darsin

doi:10.21107/rekayasa.v13i2.6259

Pengaruh Metode Minimum Quantity Lubrication (MQL) Terhadap Nilai Kekasaran Permukaan

Dicky Aprilian Nugraha, Rika Dwi Hidayatul Qoryah, Mahros Darsin

Abstract

Sebuah alat kendali semprotan cutting fluid pada minimum quantity lubrication (MQL) telah berhasil dibuat. Alat yang bekerja dengan sistem Arduino ini dihubungkan dengan sensor suhu yang diletakkan pada sisi pahat dan berhasil mengendalikan kapan cutting fluid harus disemprotkan dan kapan harus berhenti. Tujuan dari penelitian ini adalah untuk mempelajari efek penggunaan alat kendali ini terhadap kekasaran permukaan pada pembubutan baja AISI 4340. Metode Taguchi L9 digunakan untuk menyusun desain eksperimen dengan variasi parameter: metode pemberian cutting fluid, kedalaman permukaan dan komposisi campuran cutting fluid. Pahat sisipan berbahan karbida digunakan untuk memesin lurus dan roughness tester digunakan untuk mengukur kekesaran permukaan hasil pembubutan. Analisis S/N ratio dilanjutkan dengan analisis varians (ANAVA) membuktikan bahwa metode MQL yang dilengkapi sistem kendali ini mampu menghasilkan rata-rata permukaan paling halus dibandingkan metode lain. Nilai kekasaran optimum sebesar 1,941 µm diperoleh pada kombinasi permesinan dengan MQL dengan sistem kendali, depth of cut 2,0 mm, dan komposisi air terhadap minyak pada cutting fluid 7:3

Effect of Minimum Quantity Lubrication (MQL) Method on Surface Roughness

A device to control the spraying of cutting fluid in minimum quantity lubrication (MQL) has been initiated. This device was programmed with Ardunio and connected to a thermal sensor which is stick on the flank face of the tool. It succeeded in controlling when the cutting fluid should be sprayed and stopped. This research aim is to investigate the effect of using this device to the machined surface roughness. The Taguchi method L9 was used for designing the experiments. Variations were made on the method of applying cutting flood, depth of cut, and cutting fluid composition. Carbide insert tools were used and roughness tester was employed to measure the machined surface roughness. Analysis of S/N ratio following with analysis of variance (ANOVA) revealed that the controlled MQL cooling application results in the minimum surface roughness. The optimum surface roughness would be achieved when using MQL with temperature controller, depth of cut of 2.0 mm, and composition between water and oil for cutting fluid of 7:3.

Keywords

Minimum Quantity Lubrication (MQL); Surface roughness; Lubrication; Cutting fluid; Depth of cut; Surface roughness tester

Full Text:

PDF (Bahasa Indonesia)

References

Ali, S.M., Dhar, N.R., Dey, S. K. (2011). Effect of Minimum Quantity Lubrication (Mql) on Cutting Performance in Turning Medium Carbon Steel By Uncoated Carbide Insert At Different Speed-Feed Combinations. Advances in Production Engineering and Management, 6(3), 185–196. Retrieved from http://maja.uni-mb.si/files/apem/APEM6-3_185-196.pdf

Basuki, B. (2014). Pengaruh Metode Minimum Lubrication Keausan Pahat dan Kekasaran Permukaan Benda Kerja AISI 4340. Teknologi, 7(2), 112–117.

Darsin, M., & Pasang, T. (2019). Drillability of Titanium Alloy 6246 from Surface Quality Perspective. Material Science Research India, 16(1), 76–85. https://doi.org/10.13005/msri/160111

Dinata, G. G. S. (2019). Perancangan sistem kendali pemberian fluida permesianan berbasis MQL pada mesin bubut dan analisis performanya. Universitas Jember.

Fitri, N. (2009). Analisis Metode Desain Eksperimen Taguchi dalam Optimasi Karakteristik Mutu. Universitas Islam Negeri Maulana Malik Ibrahim Malang.

Jiang, Z., Zhou, F., Zhang, H., Wang, Y., & Sutherland, J. W. (2015). Optimization of machining parameters considering minimum cutting fluid consumption. Journal of Cleaner Production, 108, 183–191. https://doi.org/10.1016/j.jclepro.2015.06.007

Kedare, S. B., Borse, D. R., & Shahane, P. T. (2014). Effect of Minimum Quantity Lubrication (MQL) on Surface Roughness of Mild Steel of 15HRC on Universal Milling Machine. Procedia Materials Science, 6(Icmpc), 150–153. https://doi.org/10.1016/j.mspro.2014.07.018

Khanna, N., & Davim, J. P. (2015). Design-of-experiments application in machining titanium alloys for aerospace structural components. 61, 280–290.

Li, M., Yu, T., Yang, L., Li, H., Zhang, R., & Wang, W. (2019). Parameter optimization during minimum quantity lubrication milling of TC4 alloy with graphene-dispersed vegetable-oil-based cutting fluid. Journal of Cleaner Production, 209, 1508–1522. https://doi.org/10.1016/j.jclepro.2018.11.147

Patole, P. B., & Kulkarni, V. V. (2018). Optimization of Process Parameters based on Surface Roughness and Cutting Force in MQL Turning of AISI 4340 using Nano Fluid. Materials Today: Proceedings, 5(1), 104–112. https://doi.org/10.1016/j.matpr.2017.11.060

Upadhyay, V., Jain, P. K., & Mehta, N. K. (2012). Minimum Quantity Lubrication Assisted Turning- An Overview Machining with minimum quantity lubrication : a step towards green manufacturing Vikas Upadhyay *, P . K . Jain and N . K . Mehta. (January). https://doi.org/10.2507/daaam.scibook.2012.39

Zhang, Z., Wen, C., Liu, Y., Zhang, D., & Jiang, Z. (2019). End Milling of AISI 304 steel using Minimum Quantity Lubrication. (May).