外文翻译--在干燥和潮湿的条件下研究高速切削的费用以及便于机械制造过程的优化.doc

《外文翻译--在干燥和潮湿的条件下研究高速切削的费用以及便于机械制造过程的优化.doc》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、附录1英文原文英文原文CHAPTERIIICOSTSTUDYOFHIGH-SPEEDCUTTINGUNDERDRYANDWETCONDITIONSFORMACHININGPROCESSESOPTIMIZATION3.1IntroductionTheaimofthisstudyistooptimizethemachiningprocessesbyinvestigatingtherelationshipbetweenthehighspeedmachining(HSM)andthetoollifeforthecuttingconditionsundertesting.Fur

2、thermore,studyingtheeffectofcuttingfluidontheselectedwearcriterion,andrelationshipbetweendifferentwearcriteriaandmachiningcostforthecuttinginsertsunderHSM.Thisinvestigationshowedthatwearrateisproportionaltocuttingspeedsupportedwithsimilarobservations[12,18,19].Studyingthecorrelationbetw

3、eenhighwearratesathighcuttingspeedandmachiningcosts,providesbetterunderstandingontheperformanceofthispolicyandthebenefitofitsadoption.Currently,littleornodatahavebeenpublishedrelatingthelife-cyclecosts,toolperformance,workpiecesurfaceroughnessandworkpiecedimensionalaccuracywhenusingsoli

4、dandindexablecutters[10].However,studieshavefoundthattoolcostsinmetalcuttingmachinesareathirdofthecostofproducingparts.Thereforereducingproductcostisthefirstobjectiveofatoolmanagementsystem[16].Thebenefitsofadoptingthisresearchguidelinewillhelpdeterminetheoptimalmachiningcostandtoolrepl

5、acementpolicybasedondifferentwearcriterionvalues.Additionallythisstudyprovidesinsightinprocesscontrolandhelpsthemanagersintheearlyprocessplanningstepstoassociatefactorssuchaspreventivemaintenance,levelsofinventory,andmachiningcost.3.2ExperimentalStudyThestudydevelopedaguidelineofchoosin

6、gtherightcuttingtool,cuttingspeed,andselectingtheappropriatewearcriteriaofthecuttingtoolinsertsfortheworkmaterialunderstudy.Inthisstudyvariablewearcriteriarangingfrom0.1mmto0.6mm(toollifelimit)weretakenintoconsideration.ThisexperimentwasconductedinaccordancewiththeInternationalStandardO

7、rganizationISO36851993[46].Thetestwasdoneona(Clausing1300)variablespindlespeedmachinewithamaximumpowerof7.5Hp(seeFigure3-1).Thetoolwearmeasurementswereperformedusinganopticalmicroscopewithamagnificationofupto300times,andaScanningElectronMicroscope(SEM).Therotationalspeedofthewo