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    DIN EN ISO 2692-2015 Geometrical product specifications (GPS) - Geometrical tolerancing - Maximum material requirement (MMR) least material requirement (LMR) and reciprocity requir.pdf

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    DIN EN ISO 2692-2015 Geometrical product specifications (GPS) - Geometrical tolerancing - Maximum material requirement (MMR) least material requirement (LMR) and reciprocity requir.pdf

    1、December 2015 English price group 21No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 17.040.30!%Izp“2388777www.din.d

    2、eDIN EN ISO 2692Geometrical product specifications (GPS) Geometrical tolerancing Maximum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR) (ISO 2692:2014);English version EN ISO 2692:2014,English translation of DIN EN ISO 2692:2015-12Geometrische Produkts

    3、pezifikation (GPS) Geometrische Tolerierung Maximum-Material-Bedingung (MMR), Minimum-Material-Bedingung (LMR) und Reziprozittsbedingung (RPR) (ISO 2692:2014);Englische Fassung EN ISO 2692:2014,Englische bersetzung von DIN EN ISO 2692:2015-12Spcification gomtrique des produits (GPS) Tolrancement gom

    4、trique Exigence du maximum de matire (MMR), exigence du minimum de matire (LMR) et exigence de rciprocit (RPR) (ISO 2692:2014);Version anglaise EN ISO 2692:2014,Traduction anglaise de DIN EN ISO 2692:2015-12SupersedesDIN EN ISO 2692:2007-04www.beuth.deDocument comprises 55 pagesDTranslation by DIN-S

    5、prachendienst.In case of doubt, the German-language original shall be considered authoritative.12.15DIN EN ISO 2692:2015-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 2692:2014) has been prepared by Technical Committee ISO/TC 213 “Dimensional and geometrical pro

    6、duct specifications and verification” in collaboration with Technical Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was DIN-Normenausschuss Technische Grundlagen (DIN Sta

    7、ndards Committee Technical Fundamentals), Working Committee NA 152-03-02 AA CEN/ISO Geometrische Produktspezifikation und prfung. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 286-1 DIN EN ISO 286-1 ISO 1101 DIN EN ISO 1101 ISO 5458 D

    8、IN EN ISO 5458 ISO 5459 DIN EN ISO 5459 ISO 7083 DIN ISO 7083 ISO 8015 DIN EN ISO 8015 ISO 14253-1 DIN EN ISO 14253-1 ISO 14405-1 DIN EN ISO 14405-1 ISO 14660-2 DIN EN ISO 14660-2 ISO 17450-1 DIN EN ISO 17450-1 ISO 22432 DIN EN ISO 22432 ISO/TR 14638 DIN V 32950*)Amendments This standard differs fro

    9、m DIN EN ISO 2692:2007-04 as follows: a) the text of the standard has been completely revised. Previous editions DIN ISO 2692: 1990-05 DIN EN ISO 2692: 2007-04 *) Will be superseded by ISO 14638:2015, and accordingly DIN EN ISO 14638:2015. DIN EN ISO 2692:2015-12 3 National Annex NA (informative) Bi

    10、bliography DIN EN ISO 286-1, Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 1: Basis of tolerances, deviations and fits DIN EN ISO 1101, Geometrical Product Specifications (GPS) Geometrical tolerancing Tolerances of form, orientation, location and run-ou

    11、t DIN EN ISO 5458, Geometrical product specification (GPS) Geometrical tolerancing Positional tolerancing DIN EN ISO 5459, Geometrical product specification (GPS) Geometrical tolerancing Datums and datum systems DIN EN ISO 8015, Geometrical product specifications (GPS) Fundamentals Concepts, princip

    12、les and rules DIN EN ISO 14253-1, Geometrical product specifications (GPS) Inspection by measurement of workpieces and measuring equipment Part 1: Decision rules for proving conformity or nonconformity with specifications DIN EN ISO 14405-1, Geometrical product specifications (GPS) Dimensional toler

    13、ancing Part 1: Linear sizes DIN EN ISO 14660-2, Geometrical Product Specifications (GPS) Geometrical features Part 2: Extracted median line of a cylinder and a cone, extracted median surface, local size of an extracted feature DIN EN ISO 17450-1, Geometrical product specifications (GPS) General conc

    14、epts Part 1: Model for geometrical specification and verification DIN EN ISO 22432, Geometrical product specifications (GPS) Features utilized in specification and verification DIN ISO 7083, Technical drawings Symbols for geometrical tolerancing Proportions and dimensions DIN V 32950, Geometrical pr

    15、oduct specification (GPS) Masterplan DIN EN ISO 2692:2015-12 4 Page intentionally left blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2692 December 2014 ICS 01.100.20 Supersedes EN ISO 2692:2006 English Version Geometrical product specifications (GPS) - Geometrical tolerancing - Maxi

    16、mum material requirement (MMR), least material requirement (LMR) and reciprocity requirement (RPR) (ISO 2692:2014) Spcification gomtrique des produits (GPS) - Tolrancement gomtrique - Exigence du maximum de matire (MMR), exigence du minimum de matire (LMR) et exigence de rciprocit (RPR) (ISO 2692:20

    17、14) Geometrische Produktspezifikation (GPS) - Geometrische Tolerierung - Maximum-Material-Bedingung (MMR), Minimum-Material-Bedingung (LMR) und Reziprozittsbedingung (RPR) (ISO 2692:2014) This European Standard was approved by CEN on 16 August 2014. CEN members are bound to comply with the CEN/CENEL

    18、EC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or

    19、 to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the offi

    20、cial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,

    21、 Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN D E NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of

    22、 exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2692:2014 E Contents Page Foreword .3Introduction .41 Scope 62 Normative references . 63 Terms and definitions 64 Maximum material requirement, MMR and least material requirement, LMR 104.1 Genera

    23、l . 104.2 Maximum material requirement, MMR . 114.2.1 Maximum material requirement for toleranced features . 114.2.2 Maximum material requirement for related datum features 124.3 Least material requirement, LMR . 134.3.1 Least material requirement for toleranced features. 134.3.2 Least material requ

    24、irement for related datum features 145 Reciprocity requirement, RPR .155.1 General . 155.2 Reciprocity requirement and maximum material requirement .155.3 Reciprocity requirement and least material requirement 15Annex A (informative) Examples of tolerancing with , and 16Annex B (informative) Concept

    25、 diagram .48Annex C (informative) Relation to the GPS matrix model 49Bibliography 512 EN ISO 2692:2015 (E) DIN EN ISO 2692:2015-12Foreword This document (EN ISO 2692:2014) has been prepared by Technical Committee ISO/TC 213 “Dimensional and geometrical product specifications and verification” in col

    26、laboration with Technical Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the

    27、 latest by June 2015, and conflicting national standards shall be withdrawn at the latest by June 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all su

    28、ch patent rights. This document supersedes EN ISO 2692:2006. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia

    29、, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The tex

    30、t of ISO 2692:2014 has been approved by CEN as EN ISO 2692:2014 without any modification. 3EN ISO 2692:2015 (E) DIN EN ISO 2692:2015-12Introduction0.1. GeneralThis International Standard is a geometrical product specification (GPS) standard and is to be regarded as a general GPS standard (see ISO/TR

    31、 14638). It influences the chain links 1, 2 and 3 of the chain of standards on size of linear “features of size” and form of a line (independent/dependent of a datum), form of a surface (independent/dependent of a datum), orientation and location of derived features based on “features of size” and d

    32、atums also based on “features of size”.The ISO GPS Masterplan given in ISO/TR 14638 gives an overview of the ISO GPS system of which this document is a part. The fundamental rules of ISO GPS given in ISO 8015 apply to this document and the default decision rules given in ISO 14253-1 apply to specifi

    33、cations made in accordance with this document, unless otherwise indicated.For more detailed information on the relation of this International Standard to the GPS matrix model, see Annex C.This International Standard covers some frequently occurring workpiece functional cases in design and tolerancin

    34、g. The “maximum material requirement”, MMR, covers “assembleability” and the “least material requirement”, LMR, covers, for example, “minimum wall thickness” of a part. Each requirement (MMR and LMR) combines two independent requirements into one collective requirement, which more accurately simulat

    35、es the intended function of the workpiece. In some cases of both MMR and LMR, the “reciprocity requirement”, RPR, can be added.NOTE In ISO GPS standards, threaded features are often considered as features of size of type cylinder. However, no rules are defined in this International Standard for how

    36、to apply MMR, LMR and RPR to threaded features. Consequently, the tools defined in this International Standard cannot be used for threaded features.0.2 Information about maximum material requirement, MMRThe assembly of parts depends on the combined effect ofa) the size (of one or more extracted feat

    37、ures of size), andb) the geometrical deviation of the (extracted) features and their derived features, such as the pattern of bolt holes in two flanges and the bolts securing them.The minimum assembly clearance occurs when each of the mating features of size is at its maximum material size (e.g. the

    38、 largest bolt size and the smallest hole size) and when the geometrical deviations (e.g. the form, orientation and location deviations) of the features of size and their derived features (median line or median surface) are also at their maximum. Assembly clearance increases to a maximum when the siz

    39、es of the assembled features of size are furthest from their maximum material sizes (e.g. the smallest shaft size and the largest hole size) and when the geometrical deviations (e.g. the form, orientation and location deviations) of the features of size and their derived features are zero. It theref

    40、ore follows that if the sizes of one mating part do not reach their maximum material size, the indicated geometrical tolerance of the features of size and their derived features may be increased without endangering the assembly to the other part.This assembly function is controlled by the maximum ma

    41、terial requirement. This collective requirement is indicated on drawings by the symbol . 0.3 Information about least material requirement, LMRThe least material requirement is designed to control, for example, the minimum wall thickness, thereby preventing breakout (due to pressure in a tube), the m

    42、aximum width of a series of slots, etc. It is indicated on drawings by the symbol . The least material requirement is also characterized by a 4 EN ISO 2692:2015 (E) DIN EN ISO 2692:2015-120.4 Information about reciprocity requirement, RPRThe reciprocity requirement is an additional requirement, whic

    43、h may be used together with the maximum material requirement and the least material requirement in cases where it is permitted taking into account the function of the toleranced feature(s) to enlarge the size tolerance when the geometrical deviation on the actual workpiece does not take full advanta

    44、ge of, respectively, the maximum material virtual condition or the least material virtual condition.The reciprocity requirement is indicated on the drawing by the symbol .0.5 General information about terminology and figuresThe terminology and tolerancing concepts in this International Standard have

    45、 been updated to conform to GPS terminology, notably that in ISO 286-1, ISO 14405-1, ISO 14660-2:1999 and ISO 17450-1:2011.5EN ISO 2692:2015 (E) DIN EN ISO 2692:2015-121 ScopeThis International Standard defines the maximum material requirement, the least material requirement and the reciprocity requ

    46、irement. These requirements can only be applied to features of size.These requirements are used to control specific functions of workpieces where size and geometry are interdependent, e.g. to fulfil the functions “assembly of parts” (for maximum material requirement) or “minimum wall thickness” (for

    47、 least material requirement). However, the maximum material requirement and least material requirement are also used to fulfil other functional design requirements.Considering this interdependence between size and geometry, the principle of independency defined in ISO 8015 does not apply when the ma

    48、ximum material requirement, least material requirement, or reciprocity requirement, are used.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies

    49、. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 1101:2012, Geometrical product specifications (GPS) Geometrical tolerancing Tolerances of form, orientation, location and run-outISO 5459:2011, Geometrical product specifications (GPS) Geometrical tolerancing Datums and datum systemsISO 14405-1:2010, Geometrical product specifications (GPS) Dimensional tolerancing Part 1: Linear sizesISO 14660-2:1999, Geometrical Product Specif


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