1、September 2008DEUTSCHE NORM English price group 15No part of this standard 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!$QtJ“14681
2、39www.din.deDDIN EN ISO 8062-3Geometrical Product Specifications (GPS) Dimensional and geometrical tolerances for moulded parts Part 3: General dimensional and geometrical tolerances and machiningallowances for castings (ISO 8062-3:2007)English version of DIN EN ISO 8062-3:2008-09Geometrische Produk
3、tspezifikationen (GPS) Ma-, Form- und Lagetoleranzen fr Formteile Teil 3: Allgemeine Ma-, Form- und Lagetoleranzen und Bearbeitungszugaben frGussstcke (ISO 8062-3:2007)Englische Fassung DIN EN ISO 8062-3:2008-09SupersedesDIN EN ISO 8062-3:2007-10www.beuth.deDocument comprises 38 pagesDIN EN ISO 8062
4、-3:2008-09 2 National foreword This standard has been prepared by Technical Committee ISO/TC 213 “Dimensions and geometric product specification” in collaboration with Technical Committee CEN/TC 190 “Foundry technology” (Secretariat: DIN, Germany). The responsible German body involved in its prepara
5、tion was the Normenausschuss Gieereiwesen (Foundry Practice Standards Committee), Technical Committee GINA-AA-04 Geometrische Produktspezifi-kation und Technische Lieferbedingungen. Users of this standard should take note of an error in ISO 8062-3:2007-06 (see Annex A, Table A.3, National footnote N
6、1): “N1)Correction It shall read “Pressure die casting” instead of “investment casting” (an application for amendment has been submitted to ISO).” DIN EN ISO 8062 consists of the following parts, under the general title Geometrical product specifications (GPS) Dimensional and geometrical tolerances
7、for moulded parts: Part 1: Vocabulary Part 3: General dimensional and geometrical tolerances and machining allowances for castings Rules is to form the subject of a future Part 2 (Technical Specification). Part 1 and Part 3 supersede DIN ISO 8062:1998-08 only in parts. Part 2 dealing with the remain
8、ing subjects of DIN ISO 8062:1998 in accordance with the state of the art will be prepared at a later date. The DIN Standards corresponding to the International Standards referred to in clause 2 and in the Bibliography of the EN are as follows: ISO 1101 DIN EN ISO 1101 ISO 1302 DIN EN ISO 1302 ISO 5
9、459 DIN ISO 5459 ISO 8062-1 DIN EN ISO 8062-1 ISO 10135 DIN ISO 10135 ISO 10579-1 DIN ISO 10579 Amendments This standard differs from DIN ISO 8062-3:1998-08 as follows: a) The standard consists of three parts (see foreword). b) The title has been modified. c) Geometrical tolerances have been integra
10、ted. d) The values specified in Table 2 have been brought into line with the state of the art (especially as regards large castings). e) The standard has been editorially revised. Compared with DIN EN ISO 8062:2007-10, the following corrections have been made: a) In clause 2 “Normative references”,
11、ISO 129-1 has been deleted, ISO 286-1 and ISO 14405 have been added. DIN EN ISO 8062-3:2008-09 3 b) The correction in Annex C, subclause C.2, refers to the German version only. c) In subclause 5.2 on page 4, second sentence, the reference for casting tolerances has been changed from ISO 129-1 to ISO
12、 286-1 and ISO 14405. d) The correction in Annex E, subclause E.4.1, refers to the German version only. Previous editions DIN ISO 8062: 1998-08 DIN EN ISO 8062: 2007-10 National Annex NA (informative) Bibliography DIN EN ISO 1101, Geometrical Product Specifications (GPS) Geometrical tolerancing Tole
13、rances of form, orientation, location and run-out DIN EN ISO 1302, Geometrical Product Specifications (GPS) Indication of surface texture in technical product documentation DIN EN ISO 8062-1, Geometrical product specifications (GPS) Dimensional and geometrical tolerances for moulded parts Part 1: Vo
14、cabulary DIN ISO 5459, Technical drawings Geometrical tolerancing Datums and datum-systems for geometrical tolerances DIN ISO 10135, Technical drawings Simplified representation of moulded, cast and forged parts DIN ISO 10579, Technical drawings Dimensioning and tolerancing Non-rigid parts DIN EN IS
15、O 8062-3:2008-09 4 This page is intentionally blank EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 8062-3June 2007ICS 17.040.10English VersionGeometrical Product Specifications (GPS) - Dimensional andgeometrical tolerances for moulded parts - Part 3: Generaldimensional and geometrical toleran
16、ces and machiningallowances for castings (ISO 8062-3:2007)Spcification gomtrique des produits (GPS) - Tolrancesdimensionnelles et gomtriques des pices moules -Partie 3: Tolrances dimensionnelles et gomtriquesgnrales et surpaisseurs dusinage pour les picesmoules (ISO 8062-3:2007)Geometrische Produkts
17、pezifikation (GPS) - Ma-, Form-und Lagetoleranzen fr Formteile - Teil 3: Allgemeine Ma-,Form- und Lagetoleranzen und Bearbeitungszugaben frGussstcke (ISO 8062-3:2007)This European Standard was approved by CEN on 25 February 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulatio
18、ns which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This Europea
19、n Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national
20、 standards bodies of Austria, Belgium, Bulgaria, 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 United
21、 Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 8062-3:2007: E
22、2 DIN EN ISO 8062-3:2008-09 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Abbreviated terms .6 5 Tolerance grades .7 5.1 General7 5.2 Dimensional casting tolerance grades (DCTG) 7 5.3 Geometrical casting tolerance grades (GCTG).8 6 Surface mi
23、smatch (SMI) . 11 7 Wall thickness. 11 8 Required machining allowances (RMA) . 11 8.1 General. 11 8.2 Required machining allowance grades (RMAG) 12 9 Indication on drawings. 12 9.1 Indication of general dimensional casting tolerances 12 9.2 Indication of required machining allowances 13 9.3 Indicati
24、on of geometrical casting tolerances 13 10 Rejection 14 Annex A (informative) Casting tolerances and geometrical tolerances. 15 Annex B (informative) Required machining allowance grades (RMAG). 18 Annex C (informative) Concept of general tolerancing of characteristics. 19 Annex D (informative) Datum
25、s for general geometrical tolerances 21 Annex E (informative) Application of general geometrical tolerances for castings . 25 Annex F (informative) Relation to the GPS matrix model 33 Bibliography. 34 EN ISO 8062-3:2007 (E) Foreword 3 This document (EN ISO 8062-3:2007) has been prepared by Technical
26、 Committee ISO/TC 213 “Dimensional and geometrical product specifications and verification“ in collaboration with Technical Committee CEN/TC 190 “Foundry technology“, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publicati
27、on of an identical text or by endorsement, at the latest by December 2007, and conflicting national standards shall be withdrawn at the latest by December 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement t
28、his European Standard: Austria, Belgium, Bulgaria, 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 Un
29、ited Kingdom. Endorsement notice The text of ISO 8062-3:2007 has been approved by CEN as EN ISO 8062-3:2007 without any modifications. EN ISO 8062-3:2007 (E) DIN EN ISO 8062-3:2008-09 Introduction This part of ISO 8062 is a geometrical product specification (GPS) standard and is to be regarded as a
30、complementary process-specific tolerance standard (see ISO/TR 14638). It influences chain link 2 of the chain of standards on mouldings. For more detailed information about the relation of this part of ISO 8062 to other standards and the GPS matrix model, see Annex F. This part of ISO 8062 defines a
31、 system of tolerance grades and machining allowance grades for cast metals and their alloys. The specified system applies if the manufacturer provides a pattern or die equipment, or accepts responsibility for proving it. The tolerances specified for a casting may determine the casting method. It is
32、therefore recommended, before the design or the order is finalized, that the customer liaise with the foundry to discuss: a) the proposed casting design and accuracy required; b) machining requirements; c) the method of casting; d) the location of the parting surfaces and the necessary draft angles;
33、 e) the number of castings to be manufactured; f) the casting equipment involved; g) the consequences of the wear-out of the equipment during its life cycle; h) the datum system in accordance with ISO 5459; i) the casting alloy; j) any special requirements, e.g. individual dimensional and geometrica
34、l tolerances, fillet radii, tolerances and individual machining allowances; NOTE Because the dimensional and geometrical accuracy of a casting is related to production factors, tolerance grades which can be achieved for various methods and metals are described in Annex A. k) dimensional tolerances f
35、or long series and mass production, where development, adjustment and maintenance of casting equipment make it possible to achieve close tolerances; l) dimensional tolerances for short series and single production; m) geometrical tolerances. Information on typical required machining allowance grades
36、 is given in Annex B. 4 DIN EN ISO 8062-3:2008-09 EN ISO 8062-3:2007 (E) 1 Scope This part of ISO 8062 specifies general dimensional and geometrical tolerances, as well as machining allowance grades, for castings as delivered to the purchaser in accordance with ISO 8062-2. It is applicable for the t
37、olerancing of dimensions and geometry, and required machining allowance of castings in all cast metals and their alloys produced by various casting manufacturing processes. This part of ISO 8062 applies to both general dimensional and general geometrical tolerances (referred to in or near the title
38、block of the drawing), unless otherwise specified, and where specifically referred to on the drawing by one of the references in Clause 9. The dimensional tolerances covered by this part of ISO 8062 are tolerances for linear dimensions. The geometrical tolerances covered by this part of ISO 8062 are
39、: tolerances for straightness, flatness, roundness, parallelism, perpendicularity, symmetry, and coaxiality. This part of ISO 8062 can be used for the selection of tolerance values for individual indications. NOTE This part of ISO 8062 does not apply to 3D CAD models used without indicated dimension
40、s. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 286-1:1988, ISO sys
41、tem of limits and fits Part 1: Bases of tolerances, deviations and fits ISO 1101:2004, Geometrical Product Specifications (GPS) Geometrical tolerancing Tolerances of form, orientation, location and run-out 5 EN ISO 8062-3:2007 (E) DIN EN ISO 8062-3:2008-09 ISO 1302:2002, Geometrical Product Specific
42、ations (GPS) Indication of surface texture in technical product documentation ISO 5459:1), Geometrical product specifications (GPS) Geometrical tolerancing Datums and datum-systems ISO 8062-1:2007, Geometrical product specifications (GPS) Dimensional and geometrical tolerances for moulded parts Part
43、 1: Vocabulary ISO/TS 8062-2:2), Geometrical product specifications (GPS) Dimensional and geometrical tolerances for moulded parts Part 2: Rules ISO 10135:3), Geometrical product specifications (GPS) Drawing indications for moulded parts in technical product documentation (TPD) ISO 10579:1993, Techn
44、ical drawings Dimensioning and tolerancing Non-rigid parts ISO 14405:4), Geometrical product specifications (GPS) Dimensional tolerancing Linear sizes 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 8062-1, ISO 1101 and ISO 5459 apply. 4 Abbreviated
45、terms Abbreviated terms are given in Table 1. Table 1 Abbreviated terms Abbreviated term Interpretation Reference DCT Dimensional casting tolerance 5.2 DCTG Dimensional casting tolerance grade 5.2 GCT Geometrical casting tolerance 5.3 GCTG Geometrical casting tolerance grade 5.3 RMA Required machini
46、ng allowance Clause 8 RMAG Required machining allowance grade Clause 8 TP Taper + ISO 10135 TM Taper - ISO 10135 SMI Surface mismatch ISO 10135 1) To be published. Revision of ISO 5459:1981. 2) To be published. Revision of ISO 8062:1994. 3) To be published. Revision of ISO 10135:1994. 4) To be publi
47、shed. 6 DIN EN ISO 8062-3:2008-09 EN ISO 8062-3:2007 (E) 5 Tolerance grades 5.1 General Individual dimensional and geometrical tolerances shall be indicated in accordance with the relevant GPS standards on dimensional and geometrical tolerancing. If using general tolerances, the necessity of smaller
48、 tolerances (for functional reasons) or of larger tolerances (for economical reasons) needs to be ascertained (see Annex C). In both cases, individual tolerances shall be indicated. For drawings where the tolerances in accordance with this part of ISO 8062 only apply under specified, restricted cond
49、itions, ISO 10579 shall be referred to on the drawing. 5.2 Dimensional casting tolerance grades (DCTG) Sixteen linear dimensional casting tolerance grades are defined and designated as DCTG 1 to DCTG 16 (see Table 2). NOTE 1 For wall thicknesses, see Clause 7. Table 2 Linear dimensional casting tolerances (DCT) Dimensions in millimetres Linear dimensional tolerance for dimensional casting tolerance grade (DCTG) aNominal dimensions related to the moulded part DCTG
