钣金工程图及加工基础Sheet metal engineering drawing and processing basisWord文档格式.docx

钣金工程图及加工基础Sheet metal engineering drawing and processing basisWord文档格式.docx

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before

prone

Ontheleft

right

A,b

Adomesticthreeviewbforeignthreeviews

C.Thesizeofthelabelisnotthesame.Theforeignoceanisusuallymarkedincoordinates,withametricsystemoraBritishsystemoftwosizes.Thedomesticacceptanceofthedirectstandardsystem（theoneinch=25.4mm）

1.Knowledgemap:

（importantpoint:

longpairofpositive,highlevel,andwide）

Example1:

brickstereogramandthreeviewsathomeandabroad

2.CommonEnglishannotationsonthedrawings

Threadrib

Code/version

Item/rev

Copperplatoon

Cooperisr

（1）

SectionA-A

Unpaintedarea

Freeofpaintarea

PartialviewA

TheDetailA

Bakingvarnishprotection

Paintingmasking

4:

1ratio

SCAL4:

1

Materialbring

TheMaterial

Thenumberof

Quantity（Qty.）

OrtheAmount

Materialthickness

Thickness

（abbr.THongKong）

note

Remark

unit

TheUnit

screw

Metricsystem（internationalmetric）

Metric

（2）

Pressurerivetingunscrew

Captivescrew

stud

Standoff

Pressurerivetingscrew

Theself-clinchingstud

bolt

Bolt

Rivetingnut

Theself-clinchingthenut

Screw

Rivetingstud

Theself-clinchingstandoff

Surfacehandling

Finish

Theanchorrivetbush

Thelacquerthatbake

Coat

（orpaint）

Risingstud

Theanchorrivetbolt

Powderbakingvarnish

Powderpaint

electroplating

Plating

nut

Thenut

Screenprinting

Silkscreen

（OrPadprint）

TheDescription

Description,name

ScrewScrew

DeviceAssemble

spraying

Overspray

Versionbring

Wiredrawing

Revision

TheLinegrinding

（Or:

Brush）

（3）thesurfacearenotallowed.ThesurfaceisnotallowedtohaveaScratch,acollisiondefect.

（4）Removeallburrsandsharpedges,cleantheoilpollution.

（5）AlltheinsideradiusofthebentisR0.5exceptspecialaldeclaration.

（6）AlltheinsideAngleofthebendingis90?

Exceptforspecialspecialaldeclaration.Nospecialindicationthatallbendinganglesare90degrees

（7）Thesilkscreenshouldbeclear,withoutburrsandsharpedges,andThedimensionisaccurate.Thesilkscreenmustbeclear,withoutburrs,sharpcorners,andThedimensionsmustbeaccurate.

（8）ThefontofThesilkscreentextisArialtype.

（9）ThecolorofThesilkscreenisHUAWEIwhite.

（10）TheheightofThesilkscreentextis3mm,ThewideofThesilkscreenlinestobe0.3mm

3.Symbolscommonlyusedindrawings

1.Significanceofsurfaceroughnesssymbol:

Isthesurfaceavailablenomatterwhat

Thesurfacecanbeusedtoremovematerials

Themethodofsurfaceremovalofmaterialsisobtained

2.Featureitemsandsymbolsfortolerancetolerance

?

straightness

Positiondegrees

┻

Verticalscale

∥

Parallelscale

Planedegree

Degreeofsymmetry

<

gradient

cylindricity

a.

roundness

Lineprofile

Degreeofcircularshaft

profile

Therelevantpracticalcommonsenseofplank

1.Classificationofsteelplates（includingstripsteel）:

1.Classificationbythickness:

（1）thinplate

（2）mediumplate（3）thickplate（4）heavyplate

2.Classificationaccordingtoproductionmethods:

（1）hotrolledsteelplate

（2）coldrolledsteelplate

3.Classificationbysurfacecharacteristics:

（1）galvanizedsheet（hotgalvanizedsheet,electroplatedzincplate）

（2）tinplate（3）compositesteelplate（4）colorcoatedsteelplate

Four,accordingtouseclassification:

（1）thebridgeplate

（2）theeconomicsteelplate（3）theshipbuildingsteelplatearmorplate（4）（5）thecarplate（6）roofsteelplate（7）layout（8）electricalsteel,siliconsteelsheet（9）springplate（10）theother

Ii.OrdinaryandmechanicallayoutofJapaneseplatewithsteelplate

1.ThegenerallayoutSteelofJapaneseSteel（JISseries）ismadeupofthreemaincomponents:

thefirstdepartmentrepresentsthematerial,suchas:

S（Steel）representsSteel,andF（Ferrum）indicatesiron;

Theseconddivisionrepresentstheappearance,categoryanduseofthedifferences,suchasthe"

P"

（Plate）representationboard,andthe"

K"

（Kogu）meansthetool;

Thirdsectorsaidcharacteristicsofdigital,generallyfortheminimumtensilestrength,suchas:

SS400-thefirstSSteel（Steel）,thesecondS"

layout"

（Structure）,400forthelowertensilestrengthof400MPa,tensilestrengthof400MPagroupsaidthegenerallayoutoftheSteel

Ii.SPHC-thefirstreductionofSforSteelSteel,PforPlatePlatereduction,

HisthereductionofHeatHeat,thereductionofCtradeCommercial,thegrouprepresentsthegeneraluseofhotrolledsteelandsteelstrip

3.SPHD-indicatingstampingsteelplateandsteelstrip

4.SPHE-indicatesdeepflushwithhotrolledsteelandsteelstrip

Bring5,（SPCC）,generallyrepresentedbyColdrollingqualitycarbonsteelsheetandstrip,theequivalentofChinaQ195-215-abrandofthethirdletterCwrittenforColdColdreductiontoensuretensiletest,attheendofthebrandandTforSPCCT

6.SPCD-representsthecold-rolledhighqualitycarbonsteelsheetandsteelstrip,equivalenttoChina08AL（13237）high-qualitycarbonlayoutsteel

7.SPCE--representsthedeepimpactofcoldrolledhighqualitycarbonsteelsheetandsteelstrip,equivalenttotheChinese08AL（5213）deepsteelneedstoensurethenon-timeliness,attheendoftheplateisaddedNforSPCEN

Coldrolledhighqualitycarbonsteelsheetandsteelbandqualitycode:

theannealingstatusisA,thestandardadjustmentisS,1/8hardtobe8,1/4hardto41/2hardto2,hard1

Surfaceprocessingcode:

mattfinishingforD,shinyfinishingforB（SPCC）-SDsaidstandardconditioning,mattfinishingofcold-rolledcarboniscommonlyusedinsheetsuchasSPCCTagain-SBsaidstandardconditioning,brightnessprocessing,guaranteesofmechanicalfunctionofcold-rolledcarbonsheets

8.JISmechanicallayoutisrepresentedbysteelplatenumber:

S+carboncontent+lettercodename（C,CK）,carboncontentinthismediumisthecentralvaluex100,theletterC:

carbon

K:

itindicatesthatthecarboncontentofcarburizedsteelis0.18-0.23%

Iii.Electroplatingtinplateandhotgalvanizedsheet:

One,tinplate

Tinplatingsteelsheetandstrip,alsoknownastin,tinplatingonthesurfaceofthiskindofsteelplate（with）,hasgoodcorrosionresistance,non-toxic,canbeusedforpackingmaterialofcanned,cableinsideandoutsidetoprotectskin,telecomparts,flashlightsandotherhardware

2.Hotgalvanizedsheet

Inthethinsteelplateandsteelbeltonthesurfacewiththemethodofcontinuoushotdipplatingzinc,canpreventcorruptionrustthinsteelplateandsteelbeltsurfaceofgalvanizedsteelplateandsteelbeltiswidelyusedinmachinery,lightindustry,building,transportation,chemicalindustry,postsandtelecommunicationsandotherindustries

Itisusuallymadeofplate

One-galvanizedsteel

Galvanizedsteelmainiftwotypes:

1.Electroplatedzincplate（EG）2,hotdipgalvanizedsheet（GI）

Table1:

sheetofzincplateandhotdipgalvanizedsheet

material

content

project

Electroplatingzincplate

（EG/SECC）

Hotdipgalvanizedsheet

（GI）

Memo

Parentmetal

Coldrailannealedsteelplate

Coldrailallhardsteelplate

Beforeprocessing

Hotdip

Galvanizedquantity

Hardplating

Coatedsurface

Zinc-thicknessadsorptiontablesteel;

Thesurfaceissmoothwithoutzinc

Zinc-layeredagglutinationassociation,mayhavezincornozincflowers

Claddingclub

Purezincplating

Theouterlayerispurezinc,andtheinnerlayerisferrozincalloy

Mechanicalfunction

Sameasmotherboard

Afterannealing,sometimeseffectivehardening;

Materialisqualitativesoft

Processingfunction

Withtheparentmaterial,themoldingmachinecanbegood

Cansuffersimpleprocessing,complexprocessingcannotbeabletoholdcompletely

Commonmaterialsarethick

0.61.5mm

Thecorrosionresistance

Thincoating,poor

Coatingthickness,good