International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056
Volume: 11 Issue: 05 | May -2024 www.irjet.net p-ISSN: 2395-0072
Experimental Investigation of the Effect of Brass Electrode on Incolen 800 on Electrical Discharge Machine
Mr. Ravat Jigar P.1 , Mr. Patel Rakesh H. 2
1Student, Dept. of Mechanical Engineering, Sankalchand patel university,Gujarat, India
2Professor, Dept. of Mechanical Engineering, Sankalchand patel university,Gujarat, India
Abstract - Componentswithcomplicatedfeatures,which are challenging to obtain using traditional manufacturing procedures, are often made using electrical discharge machining (EDM), a non-traditional machining technique. Thecurrent,pulseontime,andpulseofftimearetheinput parameters in this study, whereas the MRR and surface roughness are the output parameters. The experiment is designed according to Taguchi L9 orthogonal array with three different level of each input parameter. For result interpretation,analysisofvariance(ANOVA)wasconducted andoptimumparametersselectedonthebasisofthesignal tonoiseratio,whichconfirmstheexperimentalresult.Find out most important role of input parameter on output parameter. Experimentwillbeperformedonprofilesuchas Flat,Concave,ConvexofInconel800.Tangibleobservation will be analyzed with parameters like MRR, Surface roughnesstest.Conclusionwillbedisplayedindurabilityof Inconel800withrespecttoElectricDischargeMachine.
Keywords: EDM, Incolen-800, Taguchi method, Minitab.
1. INTRODUCTION
ElectricitydischargeTheunconventionalmachiningprocess knownasmachininginvolvestheremovalofmaterialbyuse ofthethermalenergyofaspark.Thisisachievedthrougha series of electrical ejections that occur in recurrent sequencesbetween a small gapbetweenanelectrodeand the work piece. For cutting electrically conductive hard metalsandalloys,EDMiswidelyutilisedinthedie-making, automotive, and aerospace sectors. Electrode machining (EDM) is a technique that shapes metal sections by repeatedly ejecting an electrical current between a tool (cathode) and a work piece (anode) in an environment of dielectricliquid,thereforeremovingdebrisandunwanted material.Inthismachiningtechnique,theanodereferstothe work piece connected to the positive terminal and the cathode to the negative terminal. Some examples of dielectricfluidsarekerosene,transformeroil,anddistilled water.
2. OBJECTIVE
I have selected Inconel 800 sheet material for carried outtheexperiment.
Using a Taguchi method, establish the correlation betweentheinputparameters(Peakcurrent,Pulseontime,
Pulse off time) and the response variable (Surface Roughness).
Examinethevariedeffectsofvariousinputfactorsand analysetheirimpactonoutputprocessparameter,aswellas determinetheirrelativerelevance.Thisisaccomplishedby usinganL9orthogonalarraybasedontheTaguchimethod to investigate their major effects as well as interaction effects.
Optimizationtofindthebestvaluesfortheinputprocess parameters.
3. DESIGN OF EXPERIMENT
3.1 Different Techniques of DOE
1. Factorialdesign
2. ResponseSurfaceMethod
3. MixtureExperiments
4. TaguchiDesign
3.2 Application of DOE
Theproduct'smostidealdesign
Optimalprocessparametercombinations
Long-termanswerstoissueswithproduction
Themostimportantcriteriaforvalidationanddurability tests
Beststrategyforcollectingsurveydata
3.3 Process Parameters
Input Parameter
FactorA:-Current(A)
FactorB:-PulseOnTime (��s)
1. FactorC:-PulseOffTime (��s)
2.
Output Parameter
MRR(mm3/min)
SurfaceRoughness(��m)
Table-1: Levelofprocessparameter
13 17 28
OnTime 150 180 265 PulseOffTime 15 16 20
Table-2: L9OrthogonalArrayLevel
Table-3: ResultsTableForConvexProfile
Table-4: ResultsTableForFlatProfile
Table-5: ResultsTableForConcaveProfile
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056
Volume: 11 Issue: 05 | May -2024 www.irjet.net p-ISSN: 2395-0072
4. ANALYSIS & RESULTS
Fig-3: MainSNratioeffectplot(MRR-Convex)
This figure shows the principal plot for MRR at 3 mm thickness for current, pulse on time, and pulse off time. ExperimentaldataindicatesthehighestMRRat28A,180��s pulseontime,and15��spulseofftime.ThelowestMRRwas observedat13A,150��spulseontime,and15��spulseoff time.
Fig-4: MainSNratioeffectplot(SR-Convex)
Current,pulseontime,andpulseofftimeaffectthemainplot for surface roughness at 3 mm thickness, as seen above. Experimental results indicate that surface roughness was maximumat28Acurrent,265��spulseon,and16��spulse off,andlowestat13Acurrent,150��spulseon,and15��s pulseoff.
Fig-5: MainSNratioeffectplot(MRR-Flat)
This figure shows the principal plot for MRR at 3 mm thicknessforcurrent,pulseontime,andpulseofftime.The largestMRRwasseenat28Acurrent,150��spulseontime, and 20 ��s pulse off time in experiments. The lowest MRR wasobservedat13A,150��spulseontime,and15��spulse offtime.
Fig-6: MainSNratioeffectplot(SR-Flat)
Current,pulseontime,andpulseofftimeaffectthemainplot for surface roughness at 3 mm thickness, as seen above. Maximumsurfaceroughnesswasattainedat28Acurrent, 180��spulseontime,and15��spulseofftime,accordingto experimental results. The lowest surface roughness was observedat13A,150��spulseontime,and15��spulseoff time.
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056
Volume: 11 Issue: 05 | May -2024 www.irjet.net p-ISSN: 2395-0072
Fig-7: MainSNratioeffectplot(MRR-Concave)
This figure shows the principal plot for MRR at 3 mm thicknessforcurrent,pulseontime,andpulseofftime.The highestmaximumreturnratio(MRR)wasobservedat28A, 180��spulseontime,and15��spulseofftime,accordingto experimentalresults.ThelowestMRRwasobservedat17A, 150��spulseon,and16��spulseoff.
Fig-8: MainSNratioeffectplot(SR-Concave)
Current,pulseontime,andpulseofftimeaffectthemainplot for surface roughness at 3 mm thickness, as seen above. Theexperimentfoundthatthemaximumsurfaceroughness wasachievedat28A,150��spulseontime,and20��spulse offtime.Thelowestsurfaceroughnesswasobservedat13A, 180��spulseonand16��spulseoff.
5. CONCLUSION
In present work experiment carried out on EDM machine withinconel-800materialbyusingtaguchidesignConvex, Flat, Concave shape brass electrode can be used in experimentalworkForgettinghighMRRthencurrentmust
behighPulseofftimeisinsignificantforMRRPulseontime up-to certain range impact on MRR The most significant parameteriscurrent for more effect on outputparameter Comparedtoelectrodeswithflatorconcaveprofiles,those withaconvexbottomprofileworkbetter.
Flat profile electrode performs better than the concave profileelectrode.
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International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395 -0056
Volume: 11 Issue: 05 | May -2024 www.irjet.net p-ISSN: 2395-0072
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