ASME Y14 31-2008 Undimensioned Drawings《未标尺寸的图形》.pdf

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1、AN AMERICAN NATIONAL STANDARDASME Y14.31-2008Undimensioned DrawingsEngineering Drawing and Related Documentation PracticesCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME Y14.31ADOPTION NOTICE

2、ASME Y14.31, Undimensioned Drawings, was adopted on 16 September, 2008 for use by the Department ofDefense(DoD).ProposedchangesbyDoDactivitiesmustbesubmittedtotheDoDAdoptingActivity:Commander,U.S. Army Research, Development and Engineering Center (ARDEC), ATTN: AMSRD-AAR-QES-E, PicatinnyArsenal, NJ

3、07806-5000. Copies of this document may be purchased from The American Society of MechanicalEngineers (ASME), Three Park Avenue, New York, NY 10016-5990. http:/www.asme.orgCustodians: Adopting Activity:Army AR Army ARNavy SAAir Force 16 (ProjectDRPR-2008-002)Review Activities:Army CR, IE, MI, PT, TM

4、2Navy AS, CG, CH, EC, MC, NP, TDAir Force 13, 99DLADHOSDSENSANSOther CM, MP, DC2NOTE: Theactivitieslistedabovewereinterestedinthisdocumentasofthedateofthisdocument.Sinceorganizationsandresponsibili-ties can change, you should verify the currency of the information above using the ASSIST Online datab

5、ase at http:/assist.daps.dla.mil.AMSC N/A AREA DRPRDISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME Y14.31-2008

6、UndimensionedDrawingsEngineering Drawing and RelatedDocumentation PracticesAN AMERICAN NATIONAL STANDARDCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Date of Issuance: November 17, 2008This Stan

7、dard will be revised when the Society approves the issuance of a new edition. There willbe no addenda or written interpretations of the requirements of this Standard issued to this edition.Periodically certain actions of the ASME Y14 Committee may be published as Cases. Cases arepublished on the ASM

8、E Web site under the Committee Pages at http:/cstools.asme.org as they areissued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards. The Standards Comm

9、ittee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate. The proposed code or standard was madeavailable for public review and comment that provides an opportunity for additional public input from i

10、ndustry, academia,regulatory agencies, and the public-at-large.ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with anyitems mentioned in thi

11、s document, and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights, and the risk of

12、infringement of such rights, isentirely their own responsibility.Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations o

13、f this document issued in accordance with the establishedASME procedures and policies, which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publ

14、isher.The American Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2008 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networkin

15、g permitted without license from IHS-,-,-CONTENTSForeword ivCommittee Roster . vCorrespondence With the Y14 Committee vi1 General . 12 Undimensioned Drawing 33 Applications. 34 Media. 35 Dimensional Accuracy Methods . 36 Sheet Arrangement 47 Tolerances. 48 Dimensions 59 Revisions 510 Flat Pattern De

16、velopment. 5Figures1 Undimensioned Drawing Contributors 72 Forming and Bending Line Examples . 83 Brake Process Example . 94 Hydro Process Example 105 Contour Definition Drawing Example . 116 Printed Circuit Drawing Example . 127 Wire Harness Drawing Example 138 Template Example 149 Extrusion Drawin

17、g Example 1510 Art Layout Drawing Example . 1611 Assembly Drawing Example 1712 Paint Configuration Drawing Example 1813 Rotated Grid Lines . 1914 Dimensional Accuracy Points . 2015 Dimensional Accuracy Point Examples 2116 Dimensional Accuracy Point Example on Roll Drawing Form 2217 Registration Mark

18、 Examples 2318 Common Reference for Split Views on Same Sheet 2419 Common Reference for Split Views on Multiple Sheets 2520 Trim After Forming Example . 2621 Bend Instructions Example 2722 Flange Angle Examples . 2823 Variable Bend Angle Example . 2924 Joggle Material Displacement Example 1 3025 Jog

19、gle Material Displacement Example 2 3126 Hydro Joggle Example 3227 Hydro Joggle Offset Example . 33iiiCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWORDUndimensioned Drawings is the type des

20、ignation applied to engineering drawings preparedto a precise scale, from which the defined item and the supporting tooling are produced directly,by photographic or other processes. The drawing presents the engineering definition graphicallyrather than by use of numerical dimensions, although some d

21、imensions may be included toestablish a base when tolerances for specific features are smaller than those for surfaces controlledby the precision contour, and for verifying those surfaces controlled by the precision contour,and for verifying stability of the drawing material. The drawing may utilize

22、 flat patterns andsimilar processing information as necessary to economically present the definition.Suggestions for improvement of this Standard are welcome. They should be sent to TheAmerican Society of Mechanical Engineers; Attn: Secretary, Y14 Standards Committee; ThreePark Avenue; New York, NY

23、10016-5990.This Standard was approved as an American National Standard on August 25, 2008.ivCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME Y14 COMMITTEEEngineering Drawing and Related Docume

24、ntationPractices(The following is the roster of the Committee at the time of approval of this Standard.)STANDARDS COMMITTEE OFFICERSF. Bakos, Jr., ChairK. E. Wiegandt, Vice ChairC. J. Gomez, SecretarySTANDARDS COMMITTEE PERSONNELA. R. Anderson, Dimensional Control Systems, Inc.F. Bakos, Jr., Consult

25、antJ. V. Burleigh, ConsultantD. E. Day, TEC-EASE, Inc.K. Dobert, UGS PLM SolutionsC. W. Ferguson, WM Education ServicesC. J. Gomez, The American Society of Mechanical EngineersB. A. Harding, Purdue UniversityD. H. Honsinger, ConsultantW. A. Kaba, Spirit AeroSystems, Inc.K. S. King, BAE SystemsA. Kru

26、likowski, Effective Training, Inc.P. J. McCuistion, Ohio UniversityJ. D. Meadows, James D. Meadows in other cases,figures were deliberately left incomplete to illustrate aconcept or facet thereof. The presence or absence offigures has no bearing on the applicability of the statedrequirement or pract

27、ice.1.4 NotesNotes depicted in this Standard in capital lettersreflectactualdrawingentries.Notesinlowercaselettersare to be considered supporting data to the contents ofthis Standard and are, therefore, not intended for literalentry on drawings.1.5 UnitsIn the drawing examples, the U.S. Customary un

28、itsarefeatured.TheSIunits(InternationalSystemofUnits)could equally well have been used without prejudice tothe principles established.1In the text, values are stated in U.S. Customary unitsand in the SI units. The U.S. Customary units shall beconsidered as the standard.1.6 ReferencesThe following pu

29、blications form a part of thisStandard to the extent specified herein. A more recentrevision may be used provided there is no conflict withthe text of this Standard. In the event of a conflictbetweenthetextofthisStandardandthereferencescitedherein, the text of this Standard shall take precedence.ASM

30、E Y14.3-2003, Multiview and Sectional ViewDrawingsASME Y14.5M-1994, Dimensioning and TolerancingASMEY14.35M-1997,RevisionofEngineeringDrawingsand Associated DocumentsASME Y14.43-2003, Dimensioning and TolerancingPrinciples for Gages and FixturesPublisher: The American Society of MechanicalEngineers

31、(ASME), Three Park Avenue, New York,NY 10016-5990; ASME Order Department:22 Law Drive, Box 2300, Fairfield, NJ 07007-2300(www.asme.org)IPC-T-50G, Terms and Definitions for Interconnectingand Packaging Electronic CircuitsIPC-2221A, Generic Standard on Printed Board DesignPublisher: Institute for Inte

32、rconnecting and PackagingElectronic Circuits (IPC), 2215 Sanders Road,Northbrook, IL 60062 (www.ipc.org)L-P-519C, Plastic Sheet: Tracing, Glazed and MatteFinishMIL-PRF-5480G, Data, Engineering and Technical:ReproductionPublisher: Department of Defense, StandardizationDocument Order Desk, 700 Robbins

33、 Avenue,Building 4D, Philadelphia, PA 19111-5094(http:/assist.daps.dla.mil/quicksearch/)1.7 DefinitionsThe following terms are defined as their use appliesin this Standard.1.7.1 Bend Instructionbend instruction: notation of the number of degrees anddirection that a flange is formed relative to the s

34、urfaceupon which the bend instruction appears.Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME Y14.31-20081.7.2 Bend Radiusbend radius: the inside radius of a formed part.1.7.3 Bend Tangent Li

35、nebend tangent line: the line at which the flat surface of apart becomes tangent to the radius of the bend (seeFig. 2).1.7.4 Brake Processbrake process: a method of forming in which the punchis brought down on a flat pattern that is laid on the die,bending the sheet metal up and around the surface o

36、fthe punch.1.7.5 Center Line of Bend (CLB)center line of bend (CLB): a line half the distance betweenthe bend tangents that indicates the straight line of con-tact where the brake press bar will strike the flat patternto form the bend (see Fig. 3).1.7.6 Common Referencecommon reference: a reference

37、line provided for use as aguide in coordinating the alignment of an item acrossmultiple views or drawing sheets.1.7.7 Comparator Drawingcomparator drawing: adrawingdefining a2Dtrueprofile,used for overlay validation viewing of items with acomparator checking machine.1.7.8 Contour Definition Drawingc

38、ontour definition drawing: a drawing containing themathematical, numeric, or graphic definition requiredto locate and define a contoured surface, also known asloft drawing.1.7.9 Dimensional Accuracy Pointsdimensional accuracy points: a set of points located in arectangular pattern to establish a mea

39、ns of measuringhorizontally,vertically,ordiagonally acrossthedrawingto validate dimensional accuracy.1.7.10 Flangeflange: the portion of the item being bent.1.7.11 Form Block Line (FBL)formblockline(FBL):thelinerepresentingtheintersectionof the projected surfaces of the tool used for forming(see Fig

40、. 4).1.7.12 Grid Linesgrid lines: a pattern of perpendicular lines drawn to aprecise scale across the face of the drawing to validatedimensional accuracy.21.7.13 Hydro Processhydro process: a method of forming in which the sheetmetal is formed down over a die or form block by pres-sure applied throu

41、gh a rubber block affixed to thepress ram.1.7.14 Inside Mold Line (IML)inside mold line (IML): the line representing the intersec-tion of the projected inside surfaces of a formed item(see Fig. 2).1.7.15 Jogglejoggle:anoffsetdisplacementofmaterialfromitsoriginalplane or contour. Joggles are used to

42、provide structuralcontinuity between two adjacent surfaces.1.7.16 Outside Mold Line (OML)outside mold line (OML): the line representing the pro-jected outside surfaces of a formed item (see Fig. 2).1.7.17 Principal Planeprincipal plane: the flat surface of the item that flangesare developed from.1.7

43、.18 Printed Circuit Drawingprinted circuit drawing: a drawing defining the circuitrypattern that is etched, deposited, screened, or bondedto a base material.1.7.19 Registration Markregistration mark: a stylized pattern (symbol) that is usedas a reference point for registration (IPC-T-50).1.7.20 Repr

44、oductionreproduction: a copy that duplicates the original. Repro-ductions may be either reproducible or non-reproducible, depending on the media (MIL-PRF-5480).1.7.21 Templatetemplate: a tool that is a dimensionally stable full sizereproductionofanundimensioneddrawingthatdefinesthe profile of an ite

45、m.1.7.22 Tolerant Gagetolerant gage: accepts most part features that are withintolerance,rejectsmostpartfeaturesnotwithintolerance,acceptsasmallpercentageofborderlineout-of-tolerancefeatures, and rejects a small percentage of borderlinewithin-tolerance features (ASME Y14.43).1.7.23 True Geometry Vie

46、wstrue geometry views: views that show the actual shapedescription, and when it is a section view it shows theactual shape cut by the cutting plane (ASME Y14.3).1.7.24 Undimensioned Drawingundimensioned drawing: a drawingwhich defines an itemgraphically, predominantly without the use ofdimensions.Co

47、pyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME Y14.31-20081.7.25 Validationvalidation: the process used by the producer of the tem-plate to check template accuracy.1.7.26 Verificationverificat

48、ion: the process used by the user of the templateto check template accuracy.1.7.27 Wire Harness Drawingwire harness drawing: a drawing defining the configura-tion and item identification of a wire harness assembly.2 UNDIMENSIONED DRAWINGAn undimensioned drawing graphically defines theitem in true ge

49、ometry view(s). Dimensions may beincluded to establish a defined nominal value with atolerance that is a refinement from the tolerance appliedtothe undimensionedfeatures.Itemsthat aresymmetri-cal shall be completely delineated. Features are pre-sented full size, although some drawing types may beproduced to a larger or smaller scale to provi