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ID:41517230
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页数:8页
时间:2019-08-26
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1、Inadditiontothesymbols,descriptionsaanddistanceareshownonthechart,thefollowinginformationshouldbeincluded:Job:Machiningoftheshroudangcoolingholesofturbineblade,AX611.Chartbegins:Unmachinedbladeinforgebladestores.Chartends:Machinedbladeinfinishpartstores.Summary::Operations2Inspections2Tr
2、ansports4Storages2Delays2FlowDiagramAdiagramormodel,substantiallytoscale,showsthelocationofspecificactivitiescarriesoutandtheroutesfollowedbyworkers,materialsorequipmentinthereexecution.Intheflowdiagram,layoutofworkareaandmovementsarerecorded,angtheexcessivedistances,convolutedroutesandn
3、on-value-addedactivitiesareindicated.Thentherearrangementofworkareacanbedonetoreducethetravelingdistancesandnon-value-addedactivities.OperationAnalysisOperationanalysisisusedtostudyallproductiveandnonproductiveactiviteswithinoneoperationatoneplace.Throughstudyingelementsofanoperation,its
4、purposesaretoincreaseproductivitypersuitoftimeandreduceunitcostswhilemaintainingorinprovingquality.Thedifferencebetweenprocessanalysisandoperationanalysisisthatprocessanalysisstudiesthewholeproductionprocessandtheendpointisoneactivitywithintheoperation.Operationanalysiscanbeclassifiedman
5、-machineoperatonanalysis,gangprocessanalysisandtwo-handoperationanalysis.PrimaryDemandofOperationAnalysis1.Reducingthequantitiesofoperationstothelowest,arrangingtheprocesseswithreasonablesequenceandmakingeveryoperationeasiestbyusingtheprinciplesofECRS.2.Exertingthefunctionoftwohands,bala
6、ncingtheburthenoftwohandsandavoidingholdingworkpieceforalongtimeandmakinguseoftoolstotheutmostextent.3.Lettingthemachinesdothemostwork.4.Reducingtheoperationalcyclesandfrequencies,decreasingthetransportationandtransfertimesofmaterialsandcuttingdownthedistanceoftransportationandmoving,mak
7、ingthemovingandtransportationeasily.5.Eliminatingtheunreasonablespaceandgivingtheworkerenoughworkspace.6.Eliminatingtheunreasonableidlenesstimeandrealizingthesynchronizationworkofthemachineandoperator.Inaword,theobjectiveofoperationanalysisistoarrangethereasonableworkconf
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