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1、中国地质大学长城学院本科毕业设计外文资料翻译系别：工程技术系专业：机械设计制造及其自动化姓名：侯亮学号：052115072015年4月3日外文资料翻译原文IntroductionofMachining Haveashapeasaprocessingmethod,allmachiningprocessfortheproductionofthemostcommonlyusedandmostimportantmethod.Machiningprocessisaprocessgeneratedshape,inthisprocess,Driversdeviceonthewor
2、kpiecematerialtobeintheformofchipremoval.Althoughinsomeoccasions,theworkpieceundernocircumstances,theuseofmobileequipmenttotheprocessing,However,themajorityofthemachiningisnotonlysupportingtheworkpiecealsosupportingtoolsandequipmenttocomplete. Machiningknowtheprocesshastwoaspects.Small
3、groupoflow-costproduction.Forcasting,forgingandmachiningpressure,everyproductionofaspecificshapeoftheworkpiece,evenaspareparts,almosthavetospendthehighcostofprocessing.Weldingtorelyontheshapeofthestructure,toalargeextent,dependoneffectiveintheformofrawmaterials.Ingeneral,throughtheuseof
4、expensiveequipmentandwithoutspecialprocessingconditions,canbealmostanytypeofrawmaterials,mechanicalprocessingtoconverttherawmaterialsprocessedintothearbitraryshapeofthestructure,aslongastheexternaldimensionslargeenough,itispossible.Becauseofaproductionofspareparts,evenwhenthepartsandstr
5、uctureoftheproductionbatchsizesaresuitablefortheoriginalcasting,Forgingorpressureprocessingtoproduce,butusuallyprefermachining. Strictprecisionandgoodsurfacefinish,machiningthesecondpurposeistheestablishmentofthehighprecisionandsurfacefinishpossibleonthebasisof.Manyparts,ifanyothermean
6、sofproductionbelongingtothelarge-scaleproduction,WellMachiningisalow-toleranceandcanmeettherequirementsofsmallbatchproduction.Besides,manypartsontheproductionandprocessingofcoarseprocesstoimproveitsgeneralshapeofthesurface.Itisonlynecessaryprecisionandchooseonlythesurfacemachining.Forin
7、stance,thread,inadditiontomechanicalprocessing,almostnootherprocessingmethodforprocessing.Anotherexampleistheblacksmithpieceskeyholeprocessing,aswellastrainingtobeconductedimmediatelyafterthemechanicalcompletionoftheprocessing.PrimaryCuttingParameters Cuttingtheworkpieceandtoo
