1、 Intentionally left blank The American Society of Mechanical Engineers AN AMERICAN NATIONAL STANDARD SURFACE TEITURE SYMBOLS ASME Y 14.361-1 / !MI Revision of ANSI Y 14.36-1 978 (fll!l!l3) Date of Issuance: August 13, 1996 This Standard will be revised when the Society approves the issuance of a new
2、 edition. There will be no addenda or written interpretations of the requirements of this Standard issued to this edition. 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 Ame
3、rican National Standards. The Consensus Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment which provides an
4、 opportunity for additional public input from industry, 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 ass
5、erted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable Letters Patent, nor assume any such liability. Users of a code or standard are expressly advised that the determination of
6、the validity of any such patent rights, and the risk of the infringement of such rights, is entirely their own responsibility. Participation by federal agency representative(s) or persons(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or stand
7、ard. ASME accepts responsibility for only those interpretations issued in accordance with governing ASME procedures and policies which preclude the issuance of interpretations by individual volunteers. No part of this document may be reproduced in any form, in an electronic retrieval system or other
8、wise, without the prior written permission of the publisher. The American Society of Mechanical Engineers 345 E. 47th Street New York, NY 10017 Copyright 0 1996 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All Rights Reserved Printed in U.S.A. FOREWORD (This Foreword is not part of ASME Y14.36M-1
9、996.) Subcommittee 36, Surface Texture Symbols, was formed in November 1974, and is a Subcommittee of the ASME Standards Committee Y14, Engineering Drawing and Related Documentation Practices. The Subcommittee is charged with the responsibility of establishing surface texture symbols, and methods fo
10、r specifying them on engineering drawings. The basis for this Standard is ASME B46.1-1995, Surface Texture, which covers other subjects related to surface texture, such as definitions of terms, instrumentation, precision reference specimens, roughness comparison specimens, and reference material suc
11、h as notes on use and interpretation of profiling instruments, control and production of surface texture, and other methods of specification and measurement of surface qualities. This revision is also based on a review of and conforms in most respects with the international standard IS0 1302: 1992,
12、Technical Drawings-Method of Indicating Surface Texture. The following is a summary of the significant changes made to the 1978 Edition of this Standard. (a) The waviness designation is invoked by W, and a value placed in the symbol; (b) roughness values other than R, now have a place in the symbol;
13、 (c) other parameters can be invoked by a note; (d) the location in the symbol for designating processes now conforms with IS0 1302: 1992; (e) the roughness cutoff or sampling length no longer has a default value of 0.8 mm (.030 in.). Suggestions for improvement of this Standard will be welcome. The
14、y should be sent to The American Society of Mechanical Engineers, Att: Secretary, Y14 Main Committee, 345 East 47th Street, New York, NY 10017. This revision was approved as an American National Standard on February 5, 1996 iii Intentionally left blank ASME STANDARDS COMMITTEE Y14 Engineering Drawin
15、g and Related Documentation Practices (The following is the roster of the Committee at the time of approval of this Standard.) OFFICERS F. Bakos, Jr., Chair A. R. Anderson, Vice Chair C. J. Gomez, Secretary COMMllTEE PERSONNEL A. R. Anderson, Dimensional Control Systems F. Bakos, Jr., Eastman Kodak
16、Co. D. E. Bowerman, Copeland Corporation J. V. Burleigh, The Boeing Company R. A. Chadderdon, Southwest Consultants F. A. Christiana, ASEA Brown Boveri Combustion Engineering Systems M. E. Curtis, Rexnord Corporation R. W. DeBolt, Motorola, Government and Space Technology Group H. L Dubocq L. W. Fos
17、ter, L. W. Foster Associates, Inc. D. Hagler, E-Systems Inc., Garland Division C. G. Lance, Santa Cruz Technology Center P. E. McKim, Caterpillar Inc. C. D. Merkley, IBM Corporation E. Niemiec, Westinghouse Electric Corporation R. J. Polizzi D. L Ragon, Deere gener- ally accross the lay. 4.3 Roughne
18、ss Average (R,) The principal parameter specified for roughness is the roughness average, R, , defined in ASME B46.1. Its value is shown in position “a“ of the surface texture symbol in Fig. 3. 4.4 Roughness Cutoff or Sampling Length Standard ratings are listed in Section 9 of ASME B46.1 with some s
19、election criteria given in Section 3 of ASME B46.1. Drawings prepared six months after the date of issuance of ASME B46.1-1995 shall state the roughness cutoff or sampling length in position “c“ of Fig. 3. NOTE: Prior to the adoption of ASME B46.1-1995 the default rating was 0.8 mm if no other ratin
20、g was stated. 4.5 Roughness Parameters Other Than R, Roughness parameters other than R, are designated to the right position (f) in Fig. 31 of the cutoff rating. ASME Y14.36M-1996 NOTE: 1. UNLESS OTHERWISE SPECIFIED ALL SURFACES 3p FIG. 2 LOCATION OF SURFACE TEXTURE SYMBOLS I b a = roughness value R
21、, in micrometers b = production method, treatment, coating, other text, or note callout c = roughness cutoff or sompling length in millimeters d = direction of lay e = minimum moterial removal require- ment in millimeters f = roughness value other than R, in micrometers preceded by its parameter sym
22、bol (e.9. R, 0.4) FIG. 3 SYMBOL VALUE APPLICATION 3 ASME Y14.36M-1996 SURFACE TEXTURE SYMBOLS Both the symbol and the numerical value must be shown. See the R, examples in Fig. 5. 4.6 Waviness Height The principle parameter specified for waviness is the waviness height, W, defined in Section 1 of AS
23、ME B46.1. It must be specified to the right of the cutoff rating (similar to the placing of the S, in Fig. 5). 4.7 Lay Symbols for designating the direction of lay are shown and interpreted in Fig. 4. 4.8 Designations Other Than ASME B46.1- 1995 Defaults Certain measurement conditions are to be spec
24、ified by notes. Some examples are special tip radii, evaluation length, cutoff rating, and type of filter. 5 EXAMPLE DESIGNATIONS 5.1 Examples Fig. 5 illustrates examples of designations of R, lay, and roughness parameters other than R, by insertion of values in appropriate positions relative to the
25、 symbol. 5.2 Symbols for Special or Multiple Operations When surface roughness control of several operations is required within a given area, or on a given surface, surface qualities may be designated as in Fig. 6(a). If a surface must be produced by one particular process or a series of processes,
26、they shall be specified as shown in Fig. 6(b). Where a surface requirement is needed on a portion of a designated surface, a note should be added at the symbol giving the requirements and the area involved. An example is illustrated in Fig. 6(c). 4 SURFACE TEXTURE SYMBOLS ASME Y14.36M-1996 LOY Sym -
27、 bo1 - - 1, X M C R P Meoning Lay approxirnotely parallel to the line representing the surfoce to which the symbol is opplied. Loy opproximately per- pendiculor to the line representing the surfoce to which the symbol is applied. Loy angulor in both directions to the line representing the surfoce to
28、 which the symbol is opplied. Loy multidirectional. Lay opproxirnotely circulor relative to the center of the surface to which the symbol is opplied. Loy opproximately radial relative to the center of the surfoce to which the symbol is applied. Lay particulate, non- directionol, or protuberant. Exom
29、ple Showing Direction of Tool Marks n- 0- U 0- FIG. 4 LAY SYMBOLS 5 ASME-Y14.36M-1996 SURFACETEXTURE SYMBOLS .+ Roughness overoge roting is ploced ot the left of the long leg ond the roughness cutoff roting or sampling length is ploced ot the right. The spec- ification of only one roting for roughne
30、ss overoge sholl indicote the moximum value ond any lesser value sholl be occeptoble. Specify the roughness overoge in micrometers. 1 .,6 The specificotion of moximum and minimum roughness over- oge volues indicates o per- missible ronge of roughness. Specify in micrometers. 1p Removol of moteriol p
31、rohibited. 0. Roughness sampling length or cutoff roting is ploced below the horizontol extension ond is mondotory in oll coses when values ore applied to the symbol. Specify in millimeters. /0.8 Example of roughness 2.5/RZ 0.8 or cutoff roting sompling length for R, (2.5) when different thon thot f
32、or R, (0.8). /2.57R,o.4 ness porometer lndicotion of rough- other thon Ro V con also be spec- ified os o ronge seporoted by o dosh (ie. 0.4-0.8). / 2.5 /R7 0.8 roughness sompl- Example of V IL ing length or cutoff roting (2.5) applied to R, Lay designotion is indicoted by the lay symbol ploced at th
33、e right of the long leg. Exomple of mox- lmum roughness spacing, S M, ploced at the right of the cut- off roting ond obove the loy symbol. Any lesser roting sholl be occeptoble. Speclfy in millimeters. x mochining is required Moteriol removol by to produce the surface. The minimum omount of stock pr
34、ovided for moteriol removol is specified ot th,? left of the short leg of the symbol. Also, NOTE X” con be used to control designotions other thon those covered by defoults in ASME 846.1 -1995. FIG. 5 EXAMPLES OF SURFACE TEXTURE SYMBOL APPLICATION 6 SURFACE TEXTURE SYMBOLS Q) xx.xx f x.xx ASME Y14.3
35、6M-1996 u Q) xx.xx f x.xx xx xx u QI xx.xx f x.xx xx xx d- T (0) MILL GRIND J FIG. 6 EXAMPLES OF SPECIAL DESIGNATIONS I Intentionally left blank RELATED DOCUMENTS Abbreviations Yl. 1.1989 American National Standard Drafting Practices Decimal Inch Drawing Sheet Size and Format .Y14. 1.1995 Metric Dra
36、wing Sheet Size and Format .Y14.1 M.1995 Multiview and Sectional View Drawings Y14.3M-1994 Dimensioning and Tolerancing Y14.5M-1994 Mathematical Definition of Dimensioning and Tolerancing Principles Y14.5.1M-1994 Certification of Geometric Dimensioning and Tolerancing Professionals . Y14.5.2M-1995 S
37、crewThread Representation Y14.1978(R1993) Screw Thread Representation (Metric Supplement) Y14.6aM-l981(R1993) Spur, Helical, Double Helical and Racks . Y14.7.1-1971(R1993) Bevel and Hypoid Gears . Y14.7.2-1978(R1994) Castings and Forgings Y14.8M-l989(R1993) Mechanical Spring Representation . Y14.13M
38、-l981(R1992) Electrical and Electronics Diagrams Y14.15-1966(R1988) Fluid Power Diagrams Y14.17-1966(R1987) Optical Parts Y14.18M-l986(Rl993) Types and Applications of Engineering Drawings . .Y14.24 M.1989 Chassis Frames - Car and Light Truck - Ground Vehicle Practices Y14.32.1M-1994 Parts Lists, Da
39、ta Lists, and Index Lists .Y14.34 M.1989 Revision of Engineering Drawings and Associated Documents . Y14.35M-1992 SurfaceTextureSymbols Yl4.36M-1996 Digital Representation for Communication of Product Definition Data Y14.26M-1987 A Structural Language Format for Basic Shape Description . Y14 Technic
40、al Report 4-1989 Illustrations for Publication and Projection . Y15.1M-l979(R1986) TimeSeriesCharts . Yl5.2M-1979 (R1986) Lineconventionsand Lettering M.1992 Pictorial Drawings Yl4.4M-1989 (R1994) Gears and Splines InterconnectionDiagrams Y14.15 a.1971 Informationsheet Y14.15b-1973 . Graphic Symbols
41、 for: Process Charts Yl5.3M-l979(Rl986) Electrical and Electronics Diagrams . .Y32. 2.1975 Railroad Mapsand Profiles . Y32.7-1972(R1994) Fluid Power Diagrams Y32.10-1967(R1994) Process Flow Diagrams in Petroleum and Chemical Industries Y32.11-1961(R1993) Mechanical and Acoustical Elements as Used in
42、 Schematic Diagrams .Y32.1 8.1972(R1993) Pipe Fittings. Valves, and Piping Y32.2.3-1949(R1994) Heating. Ventilating, and Air Conditioning . Y32.2.4-1949(R1993) Glossary of Terms Concerning Letter Symbols . Y10.1-1972(R1988) Mechanics and Time-Related Phenomena Y10.3M-1984 HeatandThermodynamics Y10.1
43、982 (R1988) Quantities Used in Electrical Science and Electrical Engineering . .Y10. 5.1968 Acoustics YlO.11-19 Chemical Engineering Y10.12-1955(R1988) Guide for Selecting Greek Letters Used as Letter Symbols for Engineering Mathematics Y10.17-1961(R1988) Illuminating Engineering . .Y10.1 8.1967(R19
44、87) Plumbing 21977 (R1994) Heat Power Apparatus Y32.2.6-1950(R1993) Letter Symbols for: The ASME Publications Catalog shows a complete list of all the Standards published by the Society . For a complimentary catalog. or the latest information about our publications. call 1-800-THE-ASME (1.800.843.2763) . Intentionally left blank Intentionally left blank
