Mechanical Engineering Practice 金工實習知到章節(jié)答案智慧樹2023年南京理工大學

MechanicalEngineeringPractice金工實習知到章節(jié)測試答案智慧樹2023年最新南京理工大學緒論單元測試

Inthiscourse,whichpartdoestheknowledgeof“injectionmolding”belongto?

參考答案:

Manufacturing;

第一章測試

Thepartingplaneisthecontactsurfacebetweenthestationaryandmovingsidesofthemold.

參考答案:

對

Duringtheplasticationstage,thepolymermeltisforcedfromthebarrelofthemoldingmachineandintothemold.

參考答案:

錯

Afterthemoldcavityisfilledwiththepolymermelt,thepackingstageprovidesadditionalmaterialintothemoldcavityasthemoltenplasticmeltcoolsandcontracts.

參考答案:

對

Aninjectionmoldhasmanystructurestoaccomplishthefunctionsrequiredbytheinjectionmoldingprocess.

參考答案:

對

Aninjectionmoldisconstructedofanumberofplates,boltedtogetherwithsocketheadcapscrews.

參考答案:

對

第二章測試

Whetherapartisqualifieddependsfirstonwhetherithasreachedthebasicsize.

Justequaltothebasicsizemustbequalifiedproducts.（）

參考答案:

錯

Dimensionaldeviationisthedifferenceofacertainsizeminusitsbasicsize,sothesizedeviationcanbepositive,negativeandzero.

（）

參考答案:

對

Positiontolerancecanbedividedintothreecategories:directionaltolerance,positioningtoleranceandrunouttolerance.（）

參考答案:

對

Thesurfaceroughnessofpartsisdirectlyrelatedtotheprocessingmethod.（）

參考答案:

對

Surfaceroughnessbelongstomicrogeometricerror.

（）

參考答案:

對

Thesurfaceroughnesssymbolrepresentsthemachinedsurfaceobtainedbymaterialremoval.

（）

參考答案:

錯

Whenmeasuringworkpiecewithverniercaliper,themeasurementerrorwillincreaseiftheforceistoolargeortoosmall.

（）

參考答案:

對

Theouterdiametermicrometerisameasuringtoolformeasuringapertureandgroovedepth.

（）

參考答案:

錯

Thevernieruniversalanglerulercanmeasureanyanglefrom0to360degrees.

（）

參考答案:

錯

Relativemeasurementmethodisusedwhenmeasuringlengthwithpercentilemeter.

（）

參考答案:

對

第三章測試

WhileearlierworkinJapanisquitewell-documented,provingthatthisconceptcouldberealized,itwasthepatentbyCharlesHullthatisgenerallyrecognizedasthemostinfluential

sinceitgaveriseto3DSystems.

參考答案:

對

WhichapparatuswasAMtechnologycommercializedwith?

參考答案:

Stereolithography(SLorSLA)

WhicharethecharacteristicsofAMtechnology？

參考答案:

instantlocalproductiononaglobalscale

;superiorflexibility;near-netshaping;shortleadtime

Near-netshapingisanotherimportantfeatureofAMtechnology,whichsignificantlyminimizesmaterialuseandwaste.AjointstudyhasshownthatAMisabletoreducetheconsumptionofrawmaterialsbyupto

參考答案:

75%

WhichisthemostwidelyusedAMtechniqueatthepresentday？

參考答案:

FusedDepositionModeling(orFDM)

WhicharethesametechniqueswithAdditiveManufacturing？

參考答案:

freeformfabrication;3Dprinting;additivefabrication;RapidPrototyping

WhichcanbeusedbyAdditiveManufacturing？

參考答案:

powders

;sheets;

liquids;wires

AMmachineisaWhatYouSeeIsWhatYouBuild(WYSIWYB)processthat’sparticularlyvaluablethemorecomplexthegeometryis.

參考答案:

對

Wellsuitingtherequestsofmodernmanufacturingclimate,AdditiveManufacturingisviewedasthenewindustrialrevolution,makingitswayintoacontinuouslyincreasingnumberofindustries.

參考答案:

對

WherecouldAdditiveManufacturingbeused?

參考答案:

automotive;defense

;architecture

;medical

;aerospace;jewelry;art

第四章測試

WecancompleteanautomaticprogrammingofNClathebasedon(

)software.

參考答案:

MasterCAM.

weneedtomakethemodelinginthesoftwaressuchas（

）

參考答案:

Solidworks;AutoCAD;Creo

Afterthepartspatternanalysis,weneedtoplaitthemachiningtool'spathanddynamic

simulatethepathbasedontheMasterCAM.

參考答案:

對

WhenwedoprogramminginMasterCAMweneedtomovethedrawingtotheoriginofthecoordinates.

參考答案:

對

Afterwechoosethelathe,weneedtoensuretherouteoftheknifeaccordingtotherequirementsofthepartsprocessing.

參考答案:

對

Wecanchoosethelatheaccordingtotherequirementsofthepartsprocessing.

參考答案:

對

Theprocessingmethodsincludemillingtheshape,millingtheplanar,chamferring,drillingholesandsoon.

參考答案:

對

WeChoosethe

keyseatcutteraccordingtotheprocessingrequirements.

參考答案:

對

Weneedselecttheparametersoftheroughmachiningandthefinishmachining.

參考答案:

對

InMasterCAMwecanseetherouteoftheknife.

參考答案:

對

第五章測試

Industrialdesignappearedbeforetheindustrialrevolution.（

）

參考答案:

錯

Serviceisalsoakindofproduct.（

）

參考答案:

對

Productdesignincludes（

）.

參考答案:

improveddesign

;innovativedesign;conceptualdesign

ThesuccessoftheOXOpeelerisdueto(

).

參考答案:

innovativeapplicationofmaterials;beautifulappearance

;antiskidfeatures

MUJIproductshaveveryrichcolors.（

）

參考答案:

錯

PayingattentiontoindustrialdesignisApple'swaytosuccess.（

）

參考答案:

對

Classicblueisthepopularcolorof(

).

參考答案:

2020

Whenweareresearchingexistingproducts,thefollowingpointsneedtobeconsidered.(

)

參考答案:

appreciation;

material;function

;price

Designsketchcanhelpdesignerstoclarifydesignideasquickly.

（

）

參考答案:

對

Whichofthefollowingisnotafunctionofrenderings?(

)

參考答案:

communicatewithdownstreamindustry

第六章測試

Theuseofmaterialsbeginsin().

參考答案:

stoneage

Naturalmaterialsinclude().

參考答案:

feather

;bone

;fibers;clay

Structuralmaterialsinclude().

參考答案:

iron

;steel

;aluminum

Functionalmaterialsinclude().

參考答案:

superconductingmaterials

;magneticmaterials

Ironcanbeclassifiedinto().

參考答案:

spheroidalgraphitecastiron

;whitecastiron;greycastiron

Stepsofmetallographicspecimenspreparationinclude().

參考答案:

mounting

;polishing;grinding

;etching

Materialscienceistheinvestigationoftherelationshipamong().

參考答案:

properties

;performance;processing

;structure/composition

Observedphasesduringopticalmicroscopyobservationofironandsteelinclude().

參考答案:

α-ferrite

;Cementite;δ-ferrite

;γ-austenite

Pearliteisatwo-phased,lamellarstructurecomposedofalternatinglayersof().

參考答案:

ferriteandcementite

Thedeterminationof()onspecimensisimportantforqualitycontrol.

參考答案:

grainsize

第七章測試

Digitaldesignandmanufacturemainlyincludes()

fordatatransmission.

參考答案:

Digitalmeans

Digitalistheprocessthatintegratedapplies

()totransformtraditionalcontentandtechnologysystem.

參考答案:

informationtechnology;

networktechnology;computertechnology

Digitizationisthroughouttheprocess

ofProductLifeCycle.（）

參考答案:

對

Manufacturingresources

just

include

technicalresources

and

materialresources.（）

參考答案:

錯

Inthecompany-wideprogramlayer,wegenerallyuse

ManufacturingExecutionSystems.（）

參考答案:

錯

Accordingtotheshapeandprocessingrequirements,programmercompilesmachiningprocessintomachiningprogram.（）

參考答案:

對

Industry4.0beganinthe18centurywiththeintroductionofmachinerymanufacturingequipment.