1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 14744-5:2001 Th
2、e European Standard EN ISO 14744-5:2000 has the status of a British Standard ICS 25.160.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Welding Acceptance inspection of electron beam welding machines Part 5: Measurement of run-out accuracyThis British Standard, having been
3、prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 April 2001 BSI 04-2001 ISBN 0 580 34194 1 BS EN ISO 14744-5:2001 Amendments issued since publication Amd. No. Date Comments National foreword Thi
4、s British Standard is the official English language version of EN ISO 14744-5:2000. It is identical with ISO 14744-5:2000. The UK participation in its preparation was entrusted to Technical Committee WEE/47, Miscellaneous welding standards, which has the responsibility to: aid enquirers to understan
5、d the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this
6、 committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which
7、implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all
8、the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO ti
9、tle page, pages 2 to 11 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO147445 April2000 ICS25.160.00 Englishversion WeldingAcceptanceinspectionofelectronbeamwelding machinesPart5:Me
10、asurementofrunoutaccuracy(ISO 147445:2000) SoudageEssaisderceptiondesmachinesdesoudage parfaisceaudlectronsPartie5:Mesuredelaprcision gomtrique(ISO147445:2000) SchweienAbnahmeprfungvonElektronenstrahl SchweimaschinenTeil5:Messender Fhrungsgenauigkeit(ISO147445:2000) ThisEuropeanStandardwasapprovedby
11、CENon3January2000. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentra
12、lSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationals
13、tandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG CentralSecretariat:r
14、uedeStassart,36B1050Brussels 2000CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO147445:2000EPage2 ENISO147445:2000 Contents Page Foreword. 3 1 Scope 4 2 Normativereferences. 4 3 Termsanddefinitions 4 4 Testarrangementandprocedure 4 4.1 General .
15、 4 4.2 Scopeofmeasurement 4 4.3 Instrumentsandinstructionsfortheiruse. 4 5 Evaluationofmeasurements. 5Page3 ENISO147445:2000 Foreword ThetextofENISO147445:2000hasbeenpreparedbyTechnicalCommitteeCEN/TC121“Welding“,the secretariatofwhichisheldbyDS,incollaborationwithTechnicalCommitteeISO/TC44“Weldinga
16、ndallied processes“. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2000,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2000. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardso
17、rganizationsof thefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden, SwitzerlandandtheUnitedKingdom. ThisdraftEuropeanStandardiscomposedofthesixfoll
18、owingparts: Part1:Principlesandacceptanceconditions; Part2:Measurementofacceleratingvoltagecharacteristics; Part3:Measurementofbeamcurrentcharacteristics; Part4:Measurementofweldingspeed; Part5:Measurementofrunoutaccuracy; Part6:Measurementofstabilityofspotposition.Page4 ENISO147445:2000 1Scope This
19、standardisintendedforusewhentherunoutaccuracyofthemovingpartsofelectronbeamweldingmachines complyingwithENISO147441istobemeasuredinconnectionwithanacceptanceinspection.Itprovides informationontheprocedureandapparatustobeusedformakingthemeasurements.Giventhegreatvarietyof electronbeamweldingmachines,
20、thescopeofmeasurementsrequiredforacceptanceinspectionpurposesshould bespecifiedseparatelyforthemachineconcerned. Runoutaccuracyasdefinedhereisasystematicerrorandthuscountsasoneoftheparametersbywhichthe performanceofamachinetoolcanbecharacterized.Otherfactorsinfluencingperformance(e.g.dynamicforces,
21、vacuumlevel,positioningaccuracyofCNCmachines)andmethodsofstatisticalevaluationarenotcoveredinthis standard. Electronbeamweldinginvolvesmovementoftheworkpieceand/oroftheelectrongun.Successfulwelding presupposesthatthismovementiseffectedbythedevicesconcerned(e.g.worktableandrotatingfixture)witha given
22、degreeofaccuracy.Thepurposeofthemeasurementisthustocheckwhetherandtowhatextentthe requiredrunoutaccuracyismaintained. 2Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthep
23、ublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). ENISO147441:2000 WeldingAc
24、ceptanceinspectionofelectronbeamweldingmachinesPart1:Principlesandacceptance conditions(ISO147441:2000) 3Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermanddefinitionapplies, 3.1 Runoutaccuracy maximumdeviationmeasuredwithintheworkspaceusedforweldingatrightanglestothedirecti
25、onoffeedinthe X,YandZdirections,or,inthecaseofrotationoftheworkpiece,bytheaxialandradialrunout. NOTE Runoutaccuracyisalsoafunctionofthedeviationoftheactualspotpositionfromthedesired positioninthebeamaxis,referredtotheweldpointontheworkpiecesurface,insofarasthisdeviationis duetothepositioningdevices.
26、 Therunoutofeachindividualaxisshallbemeasuredtoprovideaguidetotheoverallrunoutaccuracyof thebeamrelativetothejointaxis. Incaseswhereanumberofaxesoperatetogetherduringwelding,specialmeasurementproceduresshould bespecified. 4Testarrangementandprocedures 4.1General Unlessotherwisespecified,acceptancete
27、stingofrunoutaccuracyisnormallyperformedwithaventedwork chamber. 4.2Scopeofmeasurement Measurementsshallbemadeinallsignificantdirectionsandaxesundertheloadingconditionsspecifiedin6.4of ENISO147441:2000. 4.3Instrumentsandinstructionsfortheiruse Measurementsshallbemadewithinstruments,suchasmechanicali
28、nstruments,opticalinstruments(laser instrument)orinductivedisplacementtransducers,permittingmeasurementstobemadewithanaccuracy correspondingtothelimitingvaluesspecifiedinENISO147441.Theresponsetimeofthemeasurementinstrument shallbecompatiblewiththefeedrateofthepositioningdevice.Page5 ENISO147445:200
29、0 Table1providesrecommendationsoftheapparatusandprocedureswhichmaybeusedwhenmeasuringtherun outaccuracyoftheworktableoroftheelectrongunmovementandtherotatingfixture.Inanycase,the measurementproceduresandlimitdeviationshavetobeagreedandspecified. IncaseswheretheelectrongunmovesinbothXandYdirections,m
30、easurementsintheZdirectionwillalsobe necessaryasthesepermittheparallelismbetweentheXYplaneoftheelectrongunmovementandtheXYplane oftheworktabletobechecked. Inthecaseofrotatingfixturesitshouldalsobenotedthat,incaseswheretherotationalaxisishorizontal,therun outaccuracyisnotonlyinfluencedbythemaximumper
31、missibleworkpieceloadingbutalsobythetiltingmoment andbyanyunequaldistributionofthemass. 5Evaluationofmeasurements ThedeviationsestablishedbymeasurementshallbecomparedwiththelimitingvaluesspecifiedinENISO147441.Table1Examplesofsetupsformeasuringtherunoutaccuracyoftheworktable,electrongun,orrotatingfi
32、xture No Object Diagram Equipment Procedure 1 StraightnessoftheX(Y)direction ofworktablemovementinY(X) direction Key 1Straightedge 2Dialgauge 3XYworktable Straightedge Dialgauge Positionstraightedgeinx(y)direction(e.g.byaligning itwiththereferenceslotoftable)andattachdial gauge. Traversetablethrough
33、entirefeedlengthinthe XdirectionandmeasuredeviationsinYdirection, a y . Thentraversetablethroughentirefeedlengthinthe YdirectionandmeasuredeviationsinXdirection, a x . 2 StraightnessoftheX(Y)direction ofworktablemovementin Zdirection Straightedge Dialgauge Setstraightedgeatposition1andmountdialgauge
34、. Traversetablethroughentirefeedlengthinthe X(Y)directionandmeasuredeviationinZdirection, a z . Repeatmeasurementwithstraightedgesetat position2. 3 StraightnessoftheX(Y)direction ofelectrongunmovementin Y(X)direction Key 1Electrongun Straightedge Dialgauge PositionstraightedgeinX(Y)direction(e.g.bya
35、ligning itwiththereferenceslotoftable)andattachdial gauge. Traverseelectrongunthroughentirefeedlengthinthe XdirectionandmeasuredeviationsinYdirection, a y . Thentraverseelectrongunthroughentirefeedlength intheYdirectionandmeasuredeviationsin Xdirection, a x . (continued)Table1 (continued) No Object
36、Diagram Equipment Procedure 4 StraightnessoftheX(Y)direction ofelectrongunmovementin Zdirection Straightedge Dialgauge Setstraightedgeatposition1andmountdialgauge. Traverseelectrongunthroughentirefeedlengthinthe X(Y)directionandmeasuredeviationinZdirection, a z . Repeatmeasurementwithstraightedgeset
37、at position2. 5 ParallelismoftheXYplaneof electrongunmovementtothe X(Y)directionoftheworktable movement Dialgauge Positionelectrongunatthe4cornerpointsandcentre oftheworktable.Maintainelectronguninallpositions onthesameZcoordinatesandmeasuredeviationsin Zdirection, a z . (continued)Table1 (continued
38、) No Object Diagram Equipment Procedure 6 Squarenessofmovementof worktableinXandYdirections Steelsquare Dialgauge PlacesteelsquarewithoneleginXdirectionofthe worktablemovement. TraverseworktableinYdirectionandmeasure deviationsfromsquarenessintheXdirectionalongthe square. 7 Squarenessofelectrongun m
39、ovementinXandYdirections Steelsquare Dialgauge PlacesteelsquarewithoneleginXdirectionofthe electrongunmovement. TraverseinelectronguninYdirectionandmeasure deviationsfromsquarenessintheXdirectionalongthe square. (continued)Table1 (continued) No Object Diagram Equipment Procedure 8 Squarenessof workt
40、able surfaceto movementin Zdirection Cylinderorsteel square Dialgauge Setupcylinder,squareandtraverseworktableor electronguninZdirection. MeasuredeviationfromsquarenessinX(Y)direction alongthecylinderorsquare. (continued)Table1 (continued) No Object Diagram Equipment Procedure 9 Axialrunoutinhorizon
41、talplane orinverticalplane Dialgauge Positiondialgaugeapproximately20mmawayfrom theoutsideedgeofthefaceplate,rotatefixtureand measuredeviation. 10 Radialrunoutinhorizontalor verticalplane Dialgauge Positiondialgaugeonthecentrallocationholeoron thecylinder,rotatefixtureandmeasuredeviation. (continued
42、)Table1 (concluded) No Object Diagram Equipment Procedure 11 Runout,inhorizontalplane, underload Dialgauge Subjectrotatingfixture(eccentrically)tomaximum load. Positiondialgaugeapproximately20mmawayfrom theouteredgeoffaceplate.Rotatefixtureand measuredeviation. 12 Axialrunout,inverticalplane, underl
43、oad Dialgauge Subjectrotatingfixturetomaximumload. Positiondialgaugeapproximately20mmawayfrom theouteredgeoffaceplate.Rotatefixtureand measuredeviation.BS EN ISO 14744-5:2001 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
44、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment o
