成组技术外文文献翻译、机械加工工艺方面外文翻译、中英文翻译

成组技术外文文献翻译、机械加工工艺方面外文翻译、中英文翻译外文原文GROUPTECHNOLOGYGROUPTECHNOLOGYGTISAVERYIMPORTANTMETHODOLOGYINTODAYSMANUFACTURINGSIGNIFICANTTHEREASONFORTHISISTHATGROUPTECHNOLOGY,WHENUTILIZEDTOITSFULLESTEXTENT,CANAFFECTMOSTAREASOFMANUFACTURING,INCLUDINGDESIGN,PROCESSPLANNING,SCHEDULING,ROUTING,FACTORYLAYOUT,PROCUREMENT,QUALITYASSURANCE,MACHINETOOLUTILIZATION,TOOLDESIGN,PRODUCIBILITYENGINEERING,ANDASSEMBLY1INTRODUCTIONGROUPTECHNOLOGYISASIMPLECONCEPTTHATISUSEDWIDELYINVARIOUSFORMSFORAVARIETYOFREASONS,ITISLOGICALTOCOLLECTANDASSOCIATETHINGSBASEDONFEATURESTHATTHEYHAVEINCOMMONTHISAPPROACHISFAMILIARTOEVERYONEFORPLANTS,ANIMALS,ANDCHEMICALSSUCHORGANIZATIONALSTRUCTURESHAVEALSOBEENUSEDFORHARDWAREANDOTHEROBVIOUSLYSIMILARPRODUCTSWITHINTHEMANUFACTURINGWORLDGROUPTECHNOLOGYREPRESENTSSTRUCTUREDCATEGORIZATIONOFPARTICULARVALUETOTHEMANUFACTURINGCOMMUNITYITISALREADYWIDELYUSEDPERHAPS50OFMANUFACTURINGCOMPANIESUSESOMEFORMOFGTBATHORLOTPRODUCTIONSUFFERSFROMMANYINEFFICIENCIESDUETOPARTVARIETYANDTHEGENERALPURPOSENATUREFLEXIBILITYREQUIREMENTSOFMACHINETOOLSINUSEONTHESHOPFLOORINFACT,ACINCINNATIMILACRONSTUDYSHOWEDTHAT95OFTHETIMEAPARTSPENDSONTHESHOPFLOORISIDLETIME,THEOTHER5ISDIVIDEDBETWEENSETUPANDTEARDOWNOFTHEMACHINETOOLTHEFUTUREBREAKDOWNOFTHE5OFONMACHINETIMEWASDEVELOPEDBYDUNLAPBASEDONTHISESTIMATE,ONLY24OFTHE5ISTIMEWHICHACTUALLYINVOLVESCUTTINGIE,PARTSAREBEINGMACHINEDDURINGONLY12OFTHETOTALTIMESPENTINMANUFACTURINGGROUPTECHNOLOGYMAKESPOSSIBLETHEAPPLICATIONOFSEVERALMETHODSOFANALYSISWHICHASSISTINMAKINGBATCHPRODUCTIONMOREEFFICIENTBYREDUCINGPARTVARIETYVIAPARTFAMILIESANDIMPROVINGTHROUGHOUTANDWORKINPROCESSINVENTORYITISFORTHISREASONTHATGROUPTECHNOLOGYISBECOMINGAKEYCONCEPTINMANUFACTURING2DEFINITIONMANUFACTURINGPHILOSOPHYTOSOME,FUNDAMENTALBUILDINGBLOCKFORMOREEFFICIENTPRODUCTIONTOMOST,GROUPTECHNOLOGYISASIMPLECONCEPTWHICHUTILIZES/EXPLOITSSIMILARITIESFORMOREEFFICIENTPRODUCTIONINBATHMANUFACTURINGGROUPTECHNOLOGYUSUALLYCLASSIFIESPARTSINTHEFORMOFACODEWHICHISASSIGNEDTOEACHPARTBASEDONITSSHAPEORPRODUCTIONPROCESSINGCHARACTERISTICSINUSE,CODINGPARTSASSISTSINTHECONTROLOFPLANNINGANDPROCESSINGTHISADDEDCONTROL,WHICHEXPLOITSSIMILARITIES,LEADSTOECONOMIESINTHEOVERALLMANUFACTURINGPROCESSTHEACTUALOPERATORONTHESHOPFLOORMAYNEVERKNOWTHISCODE,BUTDESIGNERS,ENGINEERS,ANDPLANNERSFINDITANINVALUABLETOOL,ALLOWINGTHEMTODOMOREPRODUCTIVEANDUSEFULANALYSIS3GENERALBENEFITSINPRACTICE,GROUPTECHNOLOGYISREALLYNOTHINGMORETHANANINFORMATION/INDEXINGSYSTEMHOWEVER,BECAUSEOFITSFOCUSONPARTDESIGNANDPROCESSINGSIMILARITIES,ANALYSISISPOSSIBLEWHICHCREATESMANUFACTURINGECONOMIESOFSCALE,ENCOURAGESSTANDARDIZATION,ANDELIMINATESDUPLICATIONINDESIGNANDPROCESSPLANNINGMASSPRODUCTIONENJOYSTHEBENEFITSOFWHATARECALLEDECONOMIESOFSCALEECONOMIESOFSCALEACHIEVEDBYPROCESSINGALARGENUMBEROFPARTSOVERTHESAMEWORKSTATIONSOREQUIPMENTTHISRESULTINLESSLABORPERPART,MOREEFFICIENTMACHINEUTILIZATION,ANDAFASTERTURNOVEROFINVENTORYBATCHPRODUCTIONINTHEPASTHASNOTENJOYEDECONOMIESOFSCALEBECAUSEOFTHENEEDTOREMAINFLEXIBLEFORCHANGINGPARTTYPESANDPRODUCTSHOWEVER,BYGROUPINGPARTSINTOFAMILIESBASEDONTHEIRSIMILARITIES,MUCHOFTHEMANUFACTURINGPROCESSINGOFTHESEPARTSCANBEDONEONENTIREFAMILIESTHISINCREASESTHENUMBEROFPARTSPROCESSEDWITHTHESAMEEQUIPMENTCONDITIONS,THEREBYPERMITTINGSOMEOFTHEECONOMIESOFSCALEOFMASSPRODUCTIONSTANDARDIZATIONISACHIEVEDINBOTHDESIGNANDPARTPROCESSPLANNINGESSENTIALLY,GROUPTECHNOLOGYCREATESANEFFICIENTDESIGNRETRIEVALSYSTEMSINCEPARTSHAVEBEENCODEBASEDONSHAPESIMILARDESIGNARELOCATEDQUICKLYANDASPECTSSUCHASPARTTOLERANCESANDPRODUCIBILITYCANBEBETTERUNDERSTOOD,MOREEASILYAPPLIED,ANDKEPTMORECONSISTENTFROMDESIGNTODESIGNWHENSTANDARDIZEDPROCESSPLANESAREDEVELOPEDANDINCLUDEINTHEGROUPTECHNOLOGYCODE,NEWPARTSANDREPEATORDERSCANFOLLOWSIMILARPROCESSINGROUTESTHROUGHTHESHOPFLOOR,SIMPLIFYINGSCHEDULINGANDFLOWTHROUGHTHESHOPGROUPTECHNOLOGYELIMINATESDUPLICATIONINBOTHDESIGNANDPROCESSPLANNING,THEREISMUCHLES“REINVENTINGOFTHEWHEEL”SINCETHEREISSUFFICIENTRETRIEVALOFSTANDARDDESIGNSANDPROCESSPLANS4APPLICATIONOFGTINPROCESSPLANNINGALTHOUGHMANYAREASOFBUSINESSOPERATIONCANBENEFITFROMGT,MANUFACTURING,THEORIGINALAPPLICATIONAREA,CONTINUESTOBETHEPLACEWHEREGTISMOSTWIDELYPRACTICEDTWOIMPORTANTTASKSINMANUFACTURINGPLANNINGANDMANUFACTURINGENGINEERINGARESCHEDULINGANDPROCESSPLANNINGJOBSCHEDULINGSETSTHEORDERINWHICHPARTSSHOULDBEPROCESSEDANDCANDETERMINEEXPECTEDCOMPLETIONTIMESFOROPERATIONANDORDERSPROCESSPLANNING,ONTHEOTHERHAND,DECIDESTHESEQUENCEOFMACHINESTOWHICHAPARTSHOULDBEROUTEDWHENITISMANUFACTUREDANDTHEOPERATIONSTHATSHOULDBEPERFORMEDATEACHMACHINEPROCESSPLANNINGALSOENCOMPASSESTOOL,JIG,ANDFIXTURESELECTIONASWELLASDOCUMENTATIONOFTHETIMESTANDARDSRUNANDSETUPTIMEASSOCIATEDWITHEACHOPERATIONPROCESSPLANNINGCANDIRECTLYAFFECTSCHEDULINGEFFICIENCYAND,THUS,MANYOFTHEPERFORMANCEMEASURESNORMALLYASSOCIATEDWITHMANUFACTURINGPLANNINGANDCONTROLSOMEOFTHELARGESTPRODUCTIVITYGAINSHAVEBEENREPORTEDINTHECREATIONOFPROCESSPLANSTHATDETERMINEHOWAPARTSHOULDBEPRODUCEDWITHCOMPUTERAIDEDPROCESSPLANNINGCAPPANDGTITISPOSSIBLETOSTANDARDIZESUCHPLANS,REDUCETHENUMBEROFNEWONES,ANDSTORE,RETRIEVE,EDIT,ANDPRINTTHEMOUTVERYEFFICIENTLYPROCESSPLANNINGNORMALLYISNOTAFORMA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