Optimization of process parameters during WEDM of EN-42 spring steel
Tóm tắt
The present work aimed to carry out the machining of EN-42 spring steel in wire electrical discharge machining with zinc-coated brass wire using distilled water as a dielectric medium. The effect of WS2 powder added in a dielectric medium, on the metal removal rate and surface roughness has been evaluated. With the use of WS2, the conductivity of the dielectric is found to be constantly equal to 10 S/m, which is a very promising feature. WS2 enhances dielectric life, metal removal rate, and surface roughness significantly. The effect of cryogenically treated wire on the metal removal rate and surface roughness during machining has been carried out. Taguchi method and genetic algorithm were used to optimize machining performance measures. Both methods provide optimum parameters and target value. The results of the Taguchi method show more error as compared to the genetic algorithm. The on time can be predicted as the most significant parameter according to the Taguchi method. From the results, it is observed that higher on time shows better metal removal rate and lower on time shows a better surface finish.
Tài liệu tham khảo
Takale AM, Chougule NK (2019) Effect of wire electro discharge machining process parameters on surface integrity of Ti49.4Ni50.6 shape memory alloy for orthopedic implant application. Mater Sci Eng 97:264–274
Bergs T, Tombul U, Herrig T et al (2018) Analysis of characteristic process parameters to identify unstable process conditions during wire EDM. Procedia Manuf 18:138–145
El-Bahloul SA (2019) Optimization of wire electrical discharge machining using statistical methods coupled with artificial intelligence techniques and soft computing. SN Appl Sci 2:49
Sharma H, Goyal K, Kumar S (2019) Performance evaluation of cryogenically treated wires during wire electric discharge machining of AISI D3 die tool steel under different cutting environments. Multidiscip Model Mater Struct 15:1318–1336
Prathipati R, Ch R, Dora SP (2019) Corrosion behavior of surface induced by wire EDM on 316L stainless steel: an experimental investigation. SN Appl Sci 1:952
Jeswani ML (1981) Electrical discharge machining in distilled water. Wear 72:81–88
Pujari SR, Koona R, Beela S (2018) Surface integrity of wire EDMed aluminum alloy: A comprehensive experimental investigation. J King Saud Univ Eng Sci 30:368–376
Konig W, Siebers F-J (1993) Influence of the working medium on the removal process in EDM sinking. In: American Society of Mechanical Engineers, Production Engineering Division (Publication) PED. pp 649–658
Leão FN, Pashby IR (2004) A review on the use of environmentally-friendly dielectric fluids in electrical discharge machining. J Mater Process Technol 149:341–346
Chow HM, Yang LD, Lin CT, Chen YF (2008) The use of SiC powder in water as dielectric for micro-slit EDM machining. J Mater Process Technol 195:160–170
Jeswani ML (1981) Effect of the addition of graphite powder to kerosene used as the dielectric fluid in electrical discharge machining. Wear 70:133–139
Kansal HK, Singh S, Kumar P (2005) Application of Taguchi method for optimisation of powder mixed electrical discharge machining. Int J Manuf Technol Manag 7:329
Furutania K, Saneto A, Takezawa H et al (2001) Accretion of titanium carbide by electrical discharge machining with powder suspended in working fluid. Precis Eng 25:138–144
Sinha DK, Kumar S, Kumar A, Yadav A (2018) Optimization of process parameters in continuous extrusion of aluminium alloy. In: 2018 International conference on computational and characterization techniques in engineering and sciences (CCTES). IEEE, pp 246–251
Pandey N, Singh R, Pant P, Yadav A (2018) Development of mathematical model for material removal and surface roughness in electrolytic magnetic abrasive finishing process. IOP Conf Series: Mater Sci Eng 404:012053
Dinesh Kumar SK, Selvanayagam R, Sivakumar M, Krishnaraj S (2016) A study on working process of wire-EDM by using two different dielectric fluids on HCHCr alloy steel. Appl Mech Mater 852:212–217
Ali Khan A, Abu Bakar MB, Faizi Al-Hazza MH et al (2017) Improving machining performance using alumina powder-added dielectric during electrical discharge machining (EDM). IOP Conf Ser Mater Sci Eng 184:012040
Prihandana GS, Mahardika M, Hamdi M et al (2009) Effect of micro-powder suspension and ultrasonic vibration of dielectric fluid in micro-EDM processes-Taguchi approach. Int J Mach Tools Manuf 49:1035–1041
Yan BH, Tsai HC, Huang FY (2005) The effect in EDM of a dielectric of a urea solution in water on modifying the surface of titanium. Int J Mach Tools Manuf 45:194–200
Jain VK, Adhikary S (2008) On the mechanism of material removal in electrochemical spark machining of quartz under different polarity conditions. J Mater Process Technol 200:460–470
Amorim FL, Dalcin VA, Soares P, Mendes LA (2017) Surface modification of tool steel by electrical discharge machining with molybdenum powder mixed in dielectric fluid. Int J Adv Manuf Technol 91:341–350
Hasçalýk A, Çaydaş U (2004) Experimental study of wire electrical discharge machining of AISI D5 tool steel. J Mater Process Technol 148:362–367
Kumar S, Bhatia R (2015) Comparative analysis of surface roughness of untreated H-11 die steel and deep cryogenic treated steel machined by WEDM. Int J Mech Eng Robot 3:30–35
Gaikwad V, Jatti VS (2018) Optimization of material removal rate during electrical discharge machining of cryo-treated NiTi alloys using Taguchi’s method. J King Saud Univ Eng Sci 30:266–272
Kapoor J, Singh S, Khamba JS (2012) Effect of cryogenic treated brass wire electrode on material removal rate in wire electrical discharge machining. Proc Inst Mech Eng Part C 226:2750–2758
Tan O, Zaimoglu AS, Hinislioglu S, Altun S (2005) Taguchi approach for optimization of the bleeding on cement-based grouts. Tunn Undergr Sp Technol 20:167–173