SANS 10111-2-2-1993 Engineering drawing Part 2 Geometrical tolerancing Section 2 Datums and datum-systems for geometrical tolerances《工程制图 第2部分 几何公差 第2节 几何公差基准数及基准系统》.pdf
《SANS 10111-2-2-1993 Engineering drawing Part 2 Geometrical tolerancing Section 2 Datums and datum-systems for geometrical tolerances《工程制图 第2部分 几何公差 第2节 几何公差基准数及基准系统》.pdf》由会员分享,可在线阅读,更多相关《SANS 10111-2-2-1993 Engineering drawing Part 2 Geometrical tolerancing Section 2 Datums and datum-systems for geometrical tolerances《工程制图 第2部分 几何公差 第2节 几何公差基准数及基准系统》.pdf(92页珍藏版)》请在麦多课文档分享上搜索。
1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. SABS0111-2*ICS 01.100.20; 21.020ISBN 0-626-09405-4*This standard references other standardsEdition 11993SOUTH AFRICAN STANDARDCode of practiceEngineering
4、 drawingSABS 0111-2Part 2: Geometrical tolerancing(Equivalent to ISO 1101:1983, ISO 5459:1981,ISO 2692:1988, ISO 5458:1987 andISO 8015:1985)Published byTHE SOUTH AFRICAN BUREAU OF STANDARDSGr 16Please note that SANS 10111-2-1:1993, SANS 10111-2-3:1993, SANS 10111-2-4:1993 and SANS 10111-2-5:1993 are
5、 no longer applicable and have been superseded by SANS 10111-2-1:2007 (edition 2.0), SANS 10111-2-3:2008 (edition 2.0), SANS 10111-2-4:2005 (edition 2.0) and SANS 10111-2-5:1993 (edition 1.0 amended to change the designation from SABS to SANS, with no technical changes) respectively, published separ
6、ately. Only section 2 of this publication is still current. This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SABS 0111-2Ed. 1This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ICS 01.100.2
7、0; 21.020 SABS 0111-2Ed. 1SOUTH AFRICAN BUREAU OF STANDARDSCODE OF PRACTICEENGINEERING DRAWINGPART 2: GEOMETRICAL TOLERANCING(Equivalent to ISO 1101:1983, ISO 5459:1981, ISO 2692:1988,ISO 5458:1987 and ISO 8015:1985)Obtainable from theSouth African Bureau of StandardsPrivate Bag X191PretoriaRepublic
8、 of South Africa0001Telephone : (012) 428-7911Fax : (012) 344-1568E-mail : salessabs.co.zaWebsite : http:/www.sabs.co.zaCOPYRIGHT RESERVEDPrinted in the Republic of South Africa by theSouth African Bureau of StandardsThis s tandard may only be used and printed by approved subscription and freemailin
9、g clients of the SABS .SABS 0111-2Ed. 1iiNoticeThis part of SABS 0111 was approved in accordance with SABS procedures on 12 May 1993.NOTE 1 In terms of the Standards Act, 1993 (Act 29 of 1993), no person shall claim or declare that he or any other personcomplied with a standard unlessa) such claim o
10、r declaration is true and accurate in all material respects, andb) the identity of the person on whose authority such claim or declaration is made, is clear.NOTE 2 It is recommended that authorities who wish to incorporate any part of this part of SABS 0111 into any legislationin the manner intended
11、 by section 31 of the Act consult the SABS regarding the implications.This part of SABS 0111 will be revised when necessary in order to keep abreast of progress. Commentwill be welcome and will be considered when this part of SABS 0111 is revised.ForewordThe technical committee responsible for this
12、part of SABS 0111 accepted the texts of ISO 1101:1983,Technical drawings - Geometrical tolerancing - Tolerancing of form, orientation, location and run-out -Generalities, definitions, symbols, indications on drawings, ISO 5459:1981, Technical drawings -Geometrical tolerancing - Datums and datum-syst
13、ems for geometrical tolerances, ISO 2692:1988,Technical drawings - Geometrical tolerancing - Maximum material principle, ISO 5458:1987, Technicaldrawings - Geometrical tolerancing - Positional tolerancing, and ISO 8015:1985, Technical drawings -Fundamental tolerancing principle, as suitable for publ
14、ication, without technical modification and with verylimited language editing, as a South African standard, with the addition of cover, title, notice andcommittee list pages.Since each of these ISO standards has been adopted as a section of this part of SABS 0111, thenumbering of the clauses, subcla
15、uses and figures of each ISO standard has been preceded by therelevant section number of this part of SABS 0111.Where the words “International Standard“ appear, referring to this part of SABS 0111, they should beinterpreted as “part of SABS 0111“.SABS 0111 consists of the following parts under the g
16、eneral title Engineering drawing:Part 1 - General principles.Part 2 - Geometrical tolerancing.SABS 0111-2, in turn, consists of the following sections:- Section 1 - Tolerancing of form, orientation, location and run-out - Generalities, definitions, symbols,indications on drawings (equivalent to ISO
17、1101:1983).- Section 2 - Datums and datum-systems for geometrical tolerances (equivalent to ISO 5459:1981).- Section 3 - Maximum and least material principles (equivalent to ISO 2692:1988).- Section 4 - Positional tolerancing (equivalent to ISO 5458:1987).- Section 5 - Fundamental tolerancing princi
18、ple (equivalent to ISO 8015:1985).Attention is drawn to the references given in clauses 1.2,2.2, 3.2, 4.2 and 5.3 of this standard. These references areindispensable for the application of this standard.ISBN 0-626-09405-4This s tandard may only be used and printed by approved subscription and freema
19、iling clients of the SABS .SABS 0111-2Ed. 1iiiContentsPage Notice . iiForeword iiCommittee . viSECTION 1: Tolerancing of form, orientation, location and run-out -Generalities, definitions, symbols, indications on drawings(Equivalent to ISO 1101:1983)1.0 Introduction . 11.1 Scope and field of applica
20、tion . 11.2 References . 11.3 General 11.4 Symbols 31.5 Tolerance frame . 41.6 Toleranced features 51.7 Tolerance zones . 61.8 Datums 71.9 Restrictive specifications. 91.10 Theoretically exact dimensions 101.11 Projected tolerance zone 101.12 Maximum material condition 101.13 Definitions of toleranc
21、es . 111.14 Detailed definitions of tolerances 121.14.1 Straightness tolerance . 121.14.2 Flatness tolerance 121.14.3 Circularity tolerance . 131.14.4 Cylindricity tolerance 131.14.5 Profile tolerance of any line . 131.14.6 Profile tolerance of any surface 131.14.7 Parallelism tolerance 141.14.8 Per
22、pendicularity tolerance 171.14.9 Angularity tolerance . 181.14.10 Positional tolerance . 191.14.11 Concentricity and coaxiality tolerance . 211.14.12 Symmetry tolerance . 211.14.13 Circular run-out tolerance. 221.14.14 Total run-out tolerance . 24SECTION 2: Datums and datum-systems for geometricalto
23、lerances (Equivalent to ISO 5459:1981)2.0 Introduction . 252.1 Scope and field of application . 252.2 References . 252.3 Definitions 252.4 Establishing datums 262.5 Application of datums . 282.6 Indication of datums and datum-systems 312.7 Datum targets . 342.8 Three-plane datum-system . 392.9 Group
24、s of features nominated as datums 40This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SABS 0111-2Ed. 1ivBlankThis s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .Ed . 1 Contents Page SECTION
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