第1页共10页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共10页制造技术基础复习基本概念、基本原理英语表达参考ReviewtheBasicConceptsandPrinciplesofFundamentalsofManufacturingTechnologyinEnglishCHAPTERONEDESIGNFORMECHANICALPROCESSPLANNINGSection1Basicconcepts•Productionprocedureofmechanicalproducts•ProcessprocedureofmachiningElementsofProcessprocedureofmachining1sequence工序；2installation安装；3station工位；4step工步；5pass走刀•Sequence:processprocedurethatconsistsofseveralsequencesduringwhichworkersoperateontheworkscontinuouslyinthesameplace;(操作者、加工地、工作对象——人为划分，相对可变)•Installation:inasequenceiftheworkisrequiredtoputintopositionandclampseveraltimes,thepartofsequencedoneinonepositioningandclampingiscalledaninstallation;(确定）•Station:Inaninstallation,byusingtheindexingormovingdevicetheworkischangeditspositionrelativelytothecuttingtool.Allthetasksdonefortheworkinonemachiningpositioninaninstallationistermedasthestation;(确定）•Step：Inonestationifthesurfacecut,cuttingtool,velocity,andfeedremainunchanged,theseworkingcontentsarethoughtofasthestep.(加工表面、刀具、切削速度、进给量任一改变均为另一工步）•Pass:Whenthesurfaceoftheworkiscutforanyonetime,suchtaskcarriedoutisnamedasthepass•(刀具在加工表面的每一次切削）•Processingsystem:•asystemthatcontainstheworktobemachined,fixturethatholdstheworkintheproperposition,cuttingtoolthatmachinestheworkdirectly,andmachinetoolthatgivesthepowerandprovidethemovementstoaccomplishtheprocessing.Inrecentyearsthegaugingandmeasuringisaddedtothesystem.RelationshipbetweenthebatchandthepatternofproductionN-programofproduction,Q-annualturnoutoftheproductn-numberofthecomponentsayear,-sharerate,-wasterate,F-annualworkingdays,A-numberofdaysforinventory,-numberofcomponentsinalotAProgramofproductionInaperiodofplanning,theturnoutofproductandscheduletobefulfillediscalledprogram.(计划期的产量加进度=生产纲领）Theturnoutinoneyearplanningisnamedtheannualprogram.第2页共10页第1页共10页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共10页BBatchofproductionAtatime,thenumberofidenticalproductstobeputintoproductionortobeproducedistermedasbatchofproduction.(一次投入生产的同一产品的数量=生产批量）Processplanningformachiningoperations:stipulateddocumentfortechnologicalprocess(机械加工工艺规程：以工艺文件形式规定的机械加工工艺过程)PatternsoftheprocessplanningformachiningGenerallyspeaking,theprocessplanningformachiningappearsintheformofsheetorcardwiththesamebasiccontentinthreepatterns:PatternA:sheetofprocessprocedures(工艺过程卡),averysimpleandconcisedocument,usuallyforsingle/smallbatchproductionPatternB:sheetofprocessoperation(机械加工工艺卡),oftenforbatchproductionPatternC:sheetofprocesssequence(机械加工工序卡),withdetailedandcompletecontents,frequentlyformassiveproductionSection2LocationandDatumoftheworkinmachiningInstallationandclamping(装夹）:concerningaboutthewaysinwhichtheworkisinstalledandclampedinthefixtureoronthemachinetool,includingtwoaspects,locating(定位)andclamping(夹紧).Locating:theprocedureduringwhichtheworkgainsitsproperpositioninthefixtureoronthemachinetool.Clamping:whentheworkpiecehasgaineditscorrectpositioninthefixture,itwillbesubjecttotheexternalforceswhilebeingmachined.So,toholdorkeeptheworkpieceinthecorrectpositionisdefinitelyrequired,whichiscalledclamping.Six-PointLocatingPrinciple...
