1、March 2012 Translation by DIN-Sprachendienst.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
2、17.040.30!$zat“1876281www.din.deDDIN EN ISO 22432Geometrical product specifications (GPS) Features utilized in specification and verification (ISO 22432:2011)English translation of DIN EN ISO 22432:2012-03Geometrische Produktspezifikation (GPS) Zur Spezifikation und Prfung benutzte Geometrieelemente
3、 (ISO 22432:2011)Englische bersetzung von DIN EN ISO 22432:2012-03Spcification gomtrique des produits (GPS) lments utiliss en spcification et vrification (ISO 22432:2011)Traduction anglaise de DIN EN ISO 22432:2012-03www.beuth.deIn case of doubt, the German-language original shall be considered auth
4、oritative.Document comprises 56 pages02.12 DIN EN ISO 22432:2012-03 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 213 “Dimensional and geometrical product specifications and verification”, Working Group 14 “Vertical GPS princ
5、iples”, 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 the Normenausschuss Technische Grundlagen (Fundamental Technical Standards Commi
6、ttee), Working Committee NA 152-03-02 AA CEN/ISO Geometrische Produktspezifikation und -prfung. The DIN Standards corresponding to the International Standards and publications referred to in this document are as follows: ISO 14660-1 DIN EN ISO 14660-1 ISO/TS 17450-1 DIN EN ISO 17450-1 ISO/TS 17450-2
7、 DIN EN ISO 17450-2 Bibliography DIN EN ISO 14660-1, Geometrical product specifications (GPS) Geometrical features Part 1: General terms and definitions DIN EN ISO 17450-1, Geometrical product specifications (GPS) General concepts Part 1: Model for geometrical specification and verification DIN EN I
8、SO 17450-2, Geometrical product specifications (GPS) General concepts Part 2: Basic tenets, specifications, operators and uncertainties EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 22432 November 2011 ICS 17.040.01 English Version Geometrical product specifications (GPS) - Features utili
9、zed in specification and verification (ISO 22432:2011) Spcification gomtrique des produits (GPS) - lments utiliss en spcification et vrification (ISO 22432:2011) Geometrische Produktspezifikation (GPS) - Zur Spezifikation und Prfung benutzte Geometrieelemente (ISO 22432:2011) This European Standard
10、was approved by CEN on 8 July 2011. CEN members are bound to comply with the CEN/CENELEC 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 nat
11、ional standards may be obtained on application to the CEN-CENELEC Management Centre or 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 lang
12、uage and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lat
13、via, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN natio
14、nal Members. Ref. No. EN ISO 22432:2011: EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGContents Page Foreword . 3 Introduction 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 Relations between the geometrical feature terms 3
15、9 Annex A (normative) Overview diagram 43 Annex B (informative) Examples of links between the features 49 Annex C (informative) Relation to the GPS matrix model . 52 Bibliography 54 DIN EN ISO 22432:2012-03EN ISO 22432:2011 (E) 2 Foreword This document (EN ISO 22432:2011) has been prepared by Techni
16、cal Committee ISO/TC 213 “Dimensional and geometrical product specifications and verification“ in collaboration 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 th
17、e status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2012, and conflicting national standards shall be withdrawn at the latest by May 2012. Attention is drawn to the possibility that some of the elements of this document may be the subje
18、ct of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bul
19、garia, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notic
20、e The text of ISO 22432:2011 has been approved by CEN as a EN ISO 22432:2011 without any modification. DIN EN ISO 22432:2012-03 EN ISO 22432:2011 (E) 3 Introduction This International Standard is a Geometrical Product Specifications (GPS) standard and is to be regarded as a global GPS standard (see
21、ISO/TR 14638). It influences all chain links in all chains of standards in the general GPS matrix. 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
22、default decision rules given in ISO 14253-1 apply to specifications made in accordance with this document, unless otherwise indicated. Geometrical features exist in three “worlds”: the world of nominal definition, where an ideal representa tion of the workpiece is defined by the designer; the world
23、of specification, where the designer has in mind several representations of the workpiece; the world of verification, where one (or more) representation(s) of a given workpiece is (are) identified in the application of measuring procedure(s). In the world of verification, mathematical operations can
24、 be distinguished from physical operations. The physical operations are the operations based on physical procedures; they are generally mechanical, optical or electromagnetic. The mathematical operations are mathematical treatments of the sampling of the workpiece. This treatment is generally achiev
25、ed by computing or electronic treatment. It is important to understand the relationship between these three worlds. This International Standard defines standardized terminology for geometrical features principally in the world of specification and the world of verification, to be used in communicati
26、on between each world. The features defined in this International Standard are well suited for the specification of rigid parts and assemblies, and may also be applied to non-rigid parts and assemblies by specifying allowable variation according to rigid solids. DIN EN ISO 22432:2012-03EN ISO 22432:
27、2011 (E) 4 1 Scope This International Standard defines general terms and types of features for geometrical features of specifications for workpieces. These definitions are based on concepts developed in ISO/TS 17450-1. This International Standard aims to serve as the “road map” mapping out the inter
28、relationship between geometrical features, thus enabling future standardization for industry and software makers in a consistent manner. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited appl
29、ies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 14660-1:1999, Geometrical Product Specifications (GPS) Geometrical features Part 1: General terms and definitions ISO/TS 17450-1:2005, Geometrical product specifications (GPS) General c
30、oncepts Part 1: Model for geometrical specification and verification ISO/TS 17450-2:2002, Geometrical product specifications (GPS) General concepts Part 2: Basic tenets, specifications, operators and uncertainties 3 Terms and definitions For the purposes of this document, the terms and definitions g
31、iven in ISO 14660-1, ISO/TS 17450-1 and ISO/TS 17450-2 and the following apply. 3.1 surface model model representing the set of features limiting the virtual or the real workpiece NOTE 1 All closed surfaces (see Figures 1 and A.1) are included. NOTE 2 The surface model allows the definition of singl
32、e features, sets of features, and/or portions of features. The total product is modelled by a set of surface models corresponding to each workpiece. EXAMPLE Case of a hollow surface. DIN EN ISO 22432:2012-03 EN ISO 22432:2011 (E) 5 Representation of a real surface of the workpiece Representation of
33、the real workpieceaRepresentation of nominal surface model Representation of skin model Representation of discrete surface model Representation of sampled surface model aFor the purpose of this International Standard. NOTE It is impossible to predict the total geometry of the real workpiece due to i
34、ts geometrical imperfections. In this International Standard, a real surface of the workpiece is illustrated in solid black. Figure 1 Example of real surface of the workpiece and its models 3.1.1 nominal surface model surface model of ideal geometry defined by the technical product documentation NOT
35、E 1 A nominal surface model is an ideal feature (See Figure 1 and Table 1). NOTE 2 A nominal surface model is a continuous surface composed of an infinite number of points. NOTE 3 Any feature on the nominal surface model (skin model) contains a continuous infinite number of points. 3.1.2 skin model
36、surface model of non-ideal geometry NOTE 1 The skin model is a virtual model used to express the specification operator and the verification operator considering a continuous surface (see Table 1 and ISO/TS 17450-1). NOTE 2 A skin model is a non-ideal feature (see Figure 1). NOTE 3 A skin model is a
37、 continuous surface consisting of an infinite number of points. NOTE 4 Any feature on the skin model contains a continuous infinite number of points. DIN EN ISO 22432:2012-03EN ISO 22432:2011 (E) 6 3.1.3 discrete surface model surface model obtained from the skin model by an extraction NOTE 1 In add
38、ition to the required points, the extraction implies an interpolation. NOTE 2 The discrete surface model is used to express the specification operator and the verification operator considering a finite number of points (see Table 1). NOTE 3 A discrete surface model is a non-ideal feature (see Figure
39、 1). 3.1.4 sampled surface model surface model obtained from the real workpiece model by a physical extraction NOTE 1 In addition to the sampled points, the verification may imply an interpolation. NOTE 2 The sampled surface model is used in verification by coordinate metrology, not, for example, in
40、 verification by a gauge because gauging makes no measurement of points. In verification by a gauge, the real surface of the workpiece is directly considered (see Table 1). NOTE 3 A sampled surface model is a non-ideal feature (see Figure 1). 3.2 geometrical feature point, line, surface, volume or a
41、 set of these previous items NOTE 1 The non-ideal surface model is a particular geometrical feature, corresponding to the infinite set of points defining the interface between the workpiece and the surrounding. NOTE 2 A geometrical feature can be an ideal feature or a non-ideal feature, and can be c
42、onsidered as a single feature or a compound feature. 3.2.1 nominal feature geometrical feature of ideal geometry defined in the technical product documentation by the product designer NOTE 1 See Figure B.1. NOTE 2 A nominal feature is defined by the technical product documentation. See Table 1. NOTE
43、 3 A nominal feature can be finite or infinite; by default it is infinite. EXAMPLE A perfect cylinder, defined in a drawing, is a nominal feature obeying a specific mathematical formula, which is defined in a coordinate system related to the situation feature, and for which dimensional parameters ar
44、e associated. The situation feature of a cylinder is a line which is commonly called “its axis”. Taking this line as an axis of a Cartesian coordinate system leads to writing x2 y2 D/2, D being a dimensional parameter. A cylinder is a feature of size, of which the size is its diameter D. 3.2.2 real
45、feature geometrical feature corresponding to a part of the workpiece real surface 3.2.3 discrete feature geometrical feature corresponding to a part of the discrete surface model 3.2.4 sampled feature geometrical feature corresponding to a part of the sampled surface model DIN EN ISO 22432:2012-03 E
46、N ISO 22432:2011 (E) 7 3.2.5 ideal feature feature defined by a parameterized equation ISO/TS 17450-1:2005, definition 3.13 NOTE 1 The expression of the parameterized equation depends on the type of ideal feature and on the intrinsic characteristics. NOTE 2 By default, an ideal feature is infinite. To change its nature, it is appropriate to specify it by the term “restricted”, e.g. restricted ideal feature. NOTE 3 For a complex surface defined by a cloud of points and an interpolation method, the cloud of points is considered the parameter. NOTE 4 This definition is also cont
