A mathematical model to choose effective cutting parameters in electroerosion, EDM

• Autorzy: Medfai, A. , Boujelbene, M. , Bayraktar, E.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Machining by electroerosion is a process of removal of material by fusion, vaporization and erosion, reserved essentially for conductor and semiconductor materials. It can be used to machine metals and alloys, the tempered steels, different type of ceramic alloys, other metallic carbides and even for harder materials such as polycrystalline diamond etc. The aim of this paper is to develop a mathematical model for the effect of cutting parameters on the machining by electro discharge machining used widely in industrial applications. Design/methodology/approach: It is about a study and detail analyzes effect of the cutting conditions in machining by electroerosion of steel 42CD4-42CrMo4 on the surface quality of the parts. The statistical method of the analysis of variance “ANOVA” makes it possible to release the considerable effects of the parameters of cut on the criteria of performance of machining by electroerosion, EDM. Findings: The result of the study shows that the nature of the electrode used and the different grades of the materials machined by Electro Discharge Machining, EDM, influence considerably the volume of the removal of material and the surface quality of the produced parts. However, more the resistivity of the electrode increases, more relative wear of the electrode will be important and more the volume of removal of material decreases. Research limitations/implications: This study needs more experimental results for evaluation of the cutting parameters in detail and introduce in the model developed here. Practical implications: This model developed based on the experimental study gives very simple choice of cutting parameters depending on the materials. Originality/value: A very simple model has been develop here after a comprehensive study and this model contains an experimental design, and application ANOVA analysis as a function of experimental results and allows to obtain a smooth surface and high quality machined pieces and can decrease at cost price of the pieces in the manufacturing engineering.

Słowa kluczowe

EN

electroerosion; EDM; material removal rate; MRR; electrode wear ratio; EWR; roughness; mathematical modelling

• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2011
• Tom: Vol. 47, nr 1
• Strony: 97--102
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Medfai, A.

• MA2I Laboratory, ENIT, National Engineering School of Tunis, Tunisia

autor

Boujelbene, M.

• Supmeca/LISMMA-Paris, School of Mechanical and Manufacturing Engineering, France

autor

Bayraktar, E.

• Supmeca/LISMMA-Paris, School of Mechanical and Manufacturing Engineering, France ,

Bibliografia

• [1] Y. Uno, A. Okada, S. Cetin, Surface modification of EDMed surface with powder mixed fluid, Proceedings of the 2nd International Conference on “Design and Production of Dies and Molds”, 2001.
• [2] I. Puertas, C.J. Luis, A study on the machining parameters optimization of electrical discharge machining, Journal of Materials Processing Technology 143-144 (2003) 521-526.
• [3] I. Puertas, C.J. Luis, L. Álvarez, Analysis of the influence of EDM parameters on surface quality, MRR and EW of WC-Co, Journal of Materials Processing Technology 153-154 (2004) 1026-1032.
• [4] W. Tebni, M. Boujelbene, E. Bayraktar, S. Ben Salem, Parametric approach model for determining electrical discharge machining (EDM) conditions: effect of cutting parameters on the surface integrity, The Arabian Journal for Science and Engineering 34/1C (2009) 101-114.
• [5] M.J. Haddad, A. Fadaei Tehrani, Material removal rate (MRR) study in the cylindrical wire electrical discharge turning (CWEDT) process, Journal of Materials Processing Technology (2007) 369-378.
• [6] M. Boujelbene, E. Bayraktar, W Tebni, S. Bensalem, Influence of machining parameters on the surface integrity in electrical discharge Machining, Archives of Materials Science and Engineering 37/2 (2009) 110-116.
• [7] D. Kremer, Usinage par électroérosion, Technique de l’ingénieur, BM 7251 (in French).
• [8] T. Ghrib, S. Ben Salem, Y. Noureddine, EDM effects on the thermal properties of 36NiCrMo16 steel, Tribology International 42 (2009) 391-396.
• [9] J. Goupy, La méthode des plans d’expériences, optimisation du choix des essais et de l’interprétation des résultats, 1988 (in French).
• [10] H. Zarepour, A.F. Tehrani, D. Karimi, S. Amini, Statistical analysis on electrode wear in EDM of tool steel DIN 1.2714 used in forging dies, Journal of Materials Processing Technology 187-188 (2007) 711-714.
• [11] E. Bayraktar, H. Xue, F. Ayari, C. Bathias, Torsional fatigue damage mechanisms in the very high cycle regime, Journal of Archives of Materials Science and Engineering 43/2 (2010) 77-86.
• [12] A. Daymi, M. Boujelbene, J.M. Linares, E. Bayraktar, A. Ben Amara, Influence of workpiece inclination angle on the surface roughness in ball end milling of the titanium alloy Ti-6Al-4V, Journal of Achievements in Materials and Manufacturing Engineering 35/1 (2009) 79-86.
• [13] H. Singh, R. Garg, Effects of process parameters on material removal rate in WEDM, Journal of Achievements in Materials and Manufacturing Engineering 32/1 (2009) 70-74.