Analysis of the electro discharge dressing (EDD) process

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1、IntJAdvManufTechnol(2006)29:688694DOI10.1007/s00170-005-2579-zORIGINALARTICLEJoseA.Sanchez·NaiaraOrtega·LuisN.LopezdeLacalle·AitzolLamikiz·JoseA.Maranon˜Analysisoftheelectrodischargedressing(EDD)processoflarge-gritsizecBNgrindingwheelsReceived:4November2004/Accepted:24Jan

2、uary2005/Publishedonline:23November2005©Springer-VerlagLondonLimited2005AbstractTheapplicationofnon-conventionaltruing/dressingingrindingsuchasthehighefficiencydeepgrinding(HEDG)(T/D)methodstotherecoveryofconductive-bondsuperabrasiveprocessandtheso-calledquickpointprocessh

3、aveonlybeenwheelshasbeenamatterofgreatinterestinthelastyears,es-possibleafterthetechnologyofsuperabrasivegrindingwasde-peciallyinthecaseofsmall-gritsizewheels.However,whenitveloped.Thistechnologyhasgrowntogetherwiththedevelop-comestothedressingoflarge-gritsizesuperabrasiv

4、ewheels,ap-mentofnewmachineconcepts,includingstifferstructures,higherpliedinroughingoperations,littleinformationisavailable.Thespindlespeeds,ultra-highprecisionadvancedpositioningsystemselectrodischargedressing(EDD)processcanbeoptimallyap-andnewflushingsystemsathigherpress

5、uresandflowrates.pliedinthesecases.InthisworkadescriptionoftheparticularSuperabrasivegrindingopensnewfieldsandapplications,mechanismsinvolvedinbondingmaterialremovalintheEDDbutnewproblemsmustalsobefaced.Thehighhardnessofoflarge-gritsizecBNwheelsispresented.Indicatorsaredefin

6、edmetallicbondedsuperabrasivewheelsandtheneedforverytightinordertoquantifythestabilityandefficiencyoftheprocess,tolerancesmaketruing/dressing(T/D)operationsaverydifficultandtheinfluenceofthemainprocessvariables(wheelspeed,taskwithmanyproblems.electrodesizeandelectricalsettin

7、gs)isanalyzed.Practicalappli-MechanicalT/Dwithdiamondtoolsisnodoubtthemostcationshowsthatveryimportantimprovementsinthegrindingpopularmethodfortherecoveryofthegrindingcapabilityandperformanceofthewheelscanbeobtainedbymaximizinggritwheelgeometryofworngrindingwheels.However

8、,inthecaseprotrusionwhileavoidinggrainlossusingthistechnique.ofsuperabrasivewheelsthisprocesssho