Experimental investigation of drilling small hole on duplex stainless steel (SS 2205) using EDM

• Autorzy: Rajaram S. , Rajkumar G. , Balasundaram R. , Srinivasan D.

Identyfikatory

DOI

10.2478/mme-2019-0014

• Języki publikacji: EN

Abstrakty

EN

This work investigates drilling of small holes of 3 mm in diameter on duplex stainless steel. Its machinability index is very low (0.66) when compared to other steels; hence, electrical discharge machining is used. The input parameters are current, spark gap, and dielectric pressure. Each input parameter is considered for three levels. Therefore, the total number of experiments is 3 × 3 × 3 = 27. To reduce the number of runs, Taguchi L9 orthogonal array is used, which have the advantage of maximum and minimum trial runs in its design. The output response is metal removal rate (MRR). To find the best operating parameter, the regression model generated using ANOVA is given as input for MATLAB genetic algorithm (GA). The experimental results indicated that models are significant. The test result indicated that the contribution of the current on the MRR is 42.42%, dielectric pressure is 35.36%, and spark gap is 1.93%. From GA, it is observed that among these three factors, lower value of current and dielectric pressure produced the maximum MRR. The SS 2205 has wide variety of applications, such as high pressure components and control valves,which have large number of components attached to it. Hence, performing micro holes on such high hardness alloy is useful.

Słowa kluczowe

EN

electrical discharge machine; SS 2205; ANOVA; MRR

PL

obrabiarka elektroerozyjna; SS 2205; ANOVA; MRR

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 23, nr 1
• Strony: 98--102
• Opis fizyczny: Bibliogr. 14 poz., 1 fot. kolor., wykr.

Twórcy

autor

Rajaram S.

• K. Ramakrishnan College of Engineering, Trichy-621112

autor

Rajkumar G.

• K. Ramakrishnan College of Engineering, Trichy-621112

autor

Balasundaram R.

• K. Ramakrishnan College of Engineering, Trichy-621112

autor

Srinivasan D.

• K. Ramakrishnan College of Engineering, Trichy-621112

Bibliografia

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• [2] Gaikwad, V., Kumar Jatti. S.: Optimization of material removal rate during electrical discharge machining of cryo-treated NiTi alloys using Taguchi’s method, Journal of King Saud University - Engineering Sciences, 2016.
• [3] Urso, G.D., Merla, C.: Work piece And Electrode Influence On Micro-EDM Drilling Performance, Precision Engineering, 38(4), 903-914, 2014.
• [4] Jahan, M.P., Wong, Y.S., Rahman, M.: A study on the quality microhole machining of tungsten carbide by micro-EDM process using transistor and RC-type pulse generator ,Journal of materials processing technology, 209, 1706-1716, 2009.
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• [6] Egashir, K., Morit, Y., Hattori, Y.: Electrical dischargemachining of submicron holes using ultrasmall-diameter electrodes, Precision Engineering, 34, 139-144, 2010.
• [7] Li, M-S., Chi, G-X., Wang, Z-l., Wang, Y., Dai, L.: Micro electrical discharge machining of small hole in TC4 alloy", Transaction nonferrous met Soc, China, 19, 434-439, 2009.
• [8] Risto, M., Haas, R., Munz, M., Optimization of the EDM drilling process to increase the productivity and geometrical accuracy, Procedia CIRP, 42, 537-542, 2016.
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• [11] Uhlmann, E., Schimmelpfennig, T.M., Perfilov, I., Streckenbach, J., Schweitzer, L.: Comparative Analysis of Dry-EDM and Conventional EDM for the Manufacturing of Micro holes in Si3N4-TiN, Procedia CIRP, 42, 173-178, 2016.
• [12] Shuliang, D., Zhenlong, W., Yukui, W., Hong, Z.L.: An experimental investigation of enhancement surface quality of micro holes for Be-Cu alloys using micro-EDM with multi-diameter electrode and different dielectrics, Procedia CIRP, 42, 257-262, 2016.
• [13] Rajesh Purohit, Rana R.S., Dwivedi, R.K., Deepen Banoriya, Swadesh Kumar, S.: Optimization of electric discharge machining of M2 tool steel using grey relational analysis, Materials Today: Proceedings, 2, 3378-3387 2015.
• [14] Dastagiri. M., Hemantha Kumar, A.: Experimental Investigation of EDM Parameters on Stainless Steel&En41b, Procedia Engineering, 97, 1551-1564, 2014.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).