1、BRITISH STANDARD BS EN ISO 4288:1998 Incorporating Amendment No. 1 to BS ISO4288:1996 (renumbers the BS as BSENISO4288: 1998) Geometric Product Specification (GPS) Surface texture Profile method: Rules and procedures for the assessment of surface texture ICS 17.040.20BSENISO4288:1998 This British St
2、andard, having been prepared under the directionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes into effect on 15 March1997 BSI 04-1999 The following BSI references relate to the work on this standard: Committee reference MTE/27 Draft for comment 92/
3、78874 DC ISBN 0 580 27033 5 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee MTE/27, Properties and metrology of surfaces, upon which the following bodies were represented: The Association for the Instrumentation, Control
4、and Automation Industry in the UK (GAMBICA) The Gauge and Toolmakers Association (GTMA) Loughborough University National Physical Laboratory (NPL) Society of British Aerospace Companies (SBAC) Society of Motor Manufacturers and Traders (SMMT) University of Birmingham University of Warwick Co-opted m
5、embers Amendments issued since publication Amd. No. Date Comments 9918 March 1998 BS renumbered as BSENISO4288 BSENISO4288:1998 BSI 04-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Foreword ii Text of ISO 4288 1BSENISO4288:1998 ii BSI 04-1999 National
6、 foreword This British Standard is the English language version of EN ISO4288:1997. It is identical with ISO4288:1996. The UK participation in its preparation was entrusted to Technical Committee MTE/27, Properties and metrology of surfaces, which has the responsibility to: aid enquirers to understa
7、nd the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can b
8、e obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find”
9、 facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal o
10、bligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN title page, page2, the ISOtitle page, pageii, pages1 to8 and abackcover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated
11、 in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO4288 November 1997 ICS 17.040.20 Descriptors: See ISO document English version Geometrical product specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of
12、 surface texture (ISO4288:1996) Spcification gomtrique des produits (GPS) Etat de surface: Mthode du profil Rgles et procdures pour lvaluation de ltat de surface (ISO 4288:1996) Geometrische Produktspezifikationen (GPS) Oberflchenbeschaffenheit: Tastschnittverfahren Regeln und Verfahren fr die Beurt
13、eilung der Oberflchenbeschaffenheit (ISO 4288:1996) This European Standard was approved by CEN on 2 November 1997. 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
14、alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by t
15、ranslation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Irelan
16、d, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in
17、 any form and by any means reserved worldwide for CEN national Members Ref. No. EN ISO 4288:1997 EENISO4288:1997 BSI 04-1999 2 Foreword The text of the International Standard from Technical Committee ISO/TC57, Metrology and properties of surfaces, of the International Organization for Standardizatio
18、n (ISO) has been taken over as a European Standard by Technical Committee CEN/TC290, Dimensional and geometrical product specification and verification, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an ident
19、ical text or by endorsement, at the latest by May1998, and conflicting national standards shall be withdrawn at the latest by May1998. According to CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria
20、, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO4288:1996 has been approved by CEN as a European St
21、andard without any modification. NOTENormative references to International Standards are listed in Annex ZA (normative). Contents Page Foreword ii Introduction 1 1 Scope 1 2 Normative references 1 3 Definitions 1 4 Parameter estimation 1 4.1 Parameters defined over the sampling length 1 4.2 Paramete
22、rs defined over the evaluation length 1 4.3 Curves and related parameters 1 4.4 Default evaluation lengths 2 5 Rules for comparison of the measured values with the tolerance limits 2 5.1 Areas on the feature to be inspected 2 5.2 The 16% rule 2 5.3 The max.-rule 2 5.4 Uncertainty of measurement 2 Pa
23、ge 6 Parameter evaluation 2 6.1 General 2 6.2 Roughness profile parameters 3 7 Rules and procedures for inspection using stylus instruments 3 7.1 Basic rules for the determination of cut-off wavelength for the measurement of roughness profile parameters 3 7.2 Measurement of roughness profile paramet
24、ers 4 Annex A (informative) Simplified procedure roughness inspection 6 Annex B (informative) Relation to GPS matrix model 6 Annex C (informative) Bibliography 7 Annex ZA (normative) Normative references to international publications with their relevant European publication 8 Figure 1 3 Figure B.1 7
25、 Table 1 Roughness sampling lengths for the measurement of Ra, Rq, Rsk, Rku, R%q and curves and related parameters for non-periodic profiles 5 Table 2 Roughness sampling lengths for the measurement of Rz, Rv, Rp, Rc and Rt of non-periodic profiles 5 Table 3 Roughness sampling lengths for the measure
26、ment of R-parameters of periodic profiles, and RSm of periodic and non-periodic profiles 5BSISO4288:1996 ii BSI 04-1999 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International St
27、andards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also
28、 take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Internatio
29、nal Standard requires approval by at least75% of the member bodies casting a vote. International Standard ISO4288 was prepared jointly by Technical Committees ISO/TC57, Metrology and properties of surfaces, Subcommittee SC1, Geometrical parameters Instruments and procedures for measurement of surfac
30、e roughness and waviness, ISO/TC3, Limits and fits and ISO/TC10, Technical drawings, product definition and related documentation, Subcommittee SC5, Dimensioning and tolerancing. This second edition cancels and replaces the first edition (ISO4288:1985) which has been technically revised. It differs
31、from the previous edition in that filter cut-off values are chosen based on the workpiece texture rather than the drawing indication. Furthermore, this International Standard includes rules for the determination of parameters other than Ra and Rz. This second edition covers roughness profile paramet
32、ers, primary profile parameters and comparison of measured motif parameter values with given specification. It is envisaged that an amendment will be prepared covering M-system waviness profile parameters, for which there are currently no standardized rules. Annex A, Annex B and Annex C of this Inte
33、rnational Standard are for information only.BSISO4288:1996 BSI 04-1999 1 Introduction This International Standard is a geometrical product specification (GPS) standard and is to be regarded as a general GSP standard (seeISO/TR14638). It influences the chain links3 and4 of the chains of standards for
34、 roughness profile and primary profile. For more detailed information of the relation of this International Standard to other standards and the GPS matrix model see Annex B. The discrimination between periodic and non-periodic profiles is subjective and left to the discretion of the user. 1 Scope Th
35、is International Standard specifies the rules for comparison of the measured values with the tolerance limits for surface texture parameters defined in ISO4287, ISO12085, ISO13565-2 and ISO13565-3. It also specifies the default rules for selection of cut-off wavelength,2c, for measuring roughness pr
36、ofile parameters according to ISO4287 by using stylus instruments according to ISO3274. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated we
37、re valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid Internatio
38、nal Standards. ISO1302:1992, Technical drawings Method of indicating surface texture. ISO3274:1996, Geometrical Product Specifications (GPS) Surface texture: Profile method Nominal characteristics of contact (stylus) instruments. ISO4287:1996, Geometrical Product Specifications (GPS) Surface texture
39、: Profile method Terms, definitions and parameters of surface texture. ISC12085:1996, Geometrical Product Specifications (GPS) Surface texture: Profile methodMotif parameters. ISO13565-1:1996, Geometrical Product Specifications (GPS) Surface texture: Profile method; surfaces having stratified functi
40、onal properties Part1: Filtering and general measurement conditions. ISO13565-2:1996, Geometrical Product Specifications (GPS) Surface texture: Profile method; surfaces having stratified functional properties Part2: Height characterization using the linear material ratio curve. ISO13565-3: 1) , Geom
41、etrical Product Specifications (GPS) Surface texture: Profile method; surfaces having stratified functional properties Part3: Height characterization using the material probability curve. ISO14253-1: 1) , Geometrical Product Specifications (GPS) Inspection by measurement of workpieces and measuring
42、instruments Part1: Decision rules for proving conformance or non-conformance with specifications. 3 Definitions For the purposes of this International Standard, the definitions given in ISO3274, ISO4287, ISO12085, ISO13565-2 and ISO13565-3 apply. 4 Parameter estimation 4.1 Parameters defined over th
43、e sampling length 4.1.1 Parameter estimate An estimate of the parameters value is calculated using the measured data from only one sampling length. 4.1.2 Average parameter estimate An average parameter estimate is calculated by taking the arithmetic mean of the parameter estimates from all the indiv
44、idual sampling lengths. When the standard number of five sampling lengths is used for roughness profile parameters, no suffix needs to be added to the symbol. For a parameter evaluated over a number of sampling lengths other than five, that number shall be added as a suffix to the parameter symbol (
45、eg.Rz1, Rz3). 4.2 Parameters defined over the evaluation length For parameters defined over the evaluation length (Pt, Rt and Wt), an estimate of a parameters value is calculated by using measurement data from an evaluation length equal to the standardized number of sampling lengths. 4.3 Curves and
46、related parameters For curves and related parameters, an estimate of a parameters value is calculated by using measurement data from one curve, which has been computed based on the evaluation length. 1) To be published.BSISO4288:1996 2 BSI 04-1999 4.4 Default evaluation lengths If not otherwise indi
47、cated on the drawing or in the technical product documentation, the evaluation length is as follows: R-parameters: the evaluation length is defined in clause7; P-parameters: the evaluation length is equal to the length of the feature being measured; motif-parameters: the evaluation length is defined
48、 in clause5 of ISO12085:1996; parameters defined in ISO13565-2 and ISO13565-3: the evaluation length is defined in clause7 of ISO13565-1:1996. 5 Rules for comparison of the measured values with the tolerance limits 5.1 Areas on the feature to be inspected The surface texture of the workpiece under i
49、nspection can appear homogeneous or be quite different over various areas. This can be seen by visual examination of the surface. In cases where the surface texture appears homogeneous, parameter values determined over the entire surface shall be used for comparison with the requirements specified on the drawings or in the technical product documentation. If there are separate areas with obviously different surface texture, the parameter values which are determined on each area shall be use
