1、BRITISH STANDARDBS EN ISO 22827-1:2005Acceptance tests for Nd:YAG laser beam welding machines Machines with optical fibre delivery Part 1: Laser assemblyThe European Standard EN ISO 22827-1:2005 has the status of a British StandardICS 25.160.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g3
2、7g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 22827-1:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 1 February 2006 BSI 1 Februa
3、ry 2006ISBN 0 580 47333 3National forewordThis British Standard is the official English language version of EN ISO 22827-1:2005. It is identical with ISO 22827-1:2005.The UK participation in its preparation was entrusted to Technical Committee WEE/-/1, Briefing committee for welding, which has the r
4、esponsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “
5、International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with
6、a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international
7、and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 9 and a back cover.The BSI copyright notice displayed in
8、this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 22827-1October 2005ICS 25.160.30English VersionAcceptance tests for Nd:YAG laser beam welding machines -Machines with optical fibre
9、 delivery - Part 1: Laser assembly(ISO 22827-1:2005)Essais de rception pour les machines de soudage parfaisceau laser Nd:YAG - Machines avec transport defaisceau par fibre optique - Partie 1: Ensemble laser (ISO22827-1:2005)Abnahmeprfungen fr Nd:YAG-Laserstrahlschweimaschinen - Maschinen mit Versorg
10、ungdurch Lichtleitfaser - Teil 1: Lasereinrichtung (ISO 22827-1:2005)This European Standard was approved by CEN on 26 September 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national stan
11、dard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 lan
12、guage made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Ger
13、many, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement C
14、entre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 22827-1:2005: EForeword This document (EN ISO 22827-1:2005) has been prepared by Technical Committee ISO/TC 44 “Welding and allied pr
15、ocesses“ in collaboration with Technical Committee CEN/TC 121 “Welding“, 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 identical text or by endorsement, at the latest by April 2006, and conflicting nation
16、al standards shall be withdrawn at the latest by April 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
17、Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 22827-1:2005 has been approved by CEN as EN ISO 22827-1:2005 without a
18、ny modifications. EN ISO 22827-1:2005Reference numberISO 22827-1:2005(E)INTERNATIONAL STANDARD ISO22827-1First edition2005-10-15Acceptance tests for Nd:YAG laser beam welding machines Machines with optical fibre delivery Part 1: Laser assembly Essais de rception pour les machines de soudage par fais
19、ceau laser Nd:YAG Machines avec transport de faisceau par fibre optique Partie 1: Ensemble laser EN ISO 22827-1:2005ii iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Environmental conditions and operating conditions of acceptance tests
20、. 2 4.1 Installation environment 2 4.2 Power supply. 2 4.3 Cooling system . 2 4.4 Pumping light source . 2 4.5 Shielding and assist gas 2 4.6 Operating instruction for users. 2 5 Acceptance test 3 5.1 General. 3 5.2 Check of parts . 3 5.3 Acceptance tests for laser power and optical system 3 5.4 Tes
21、t for laser beam safety . 4 5.5 Test of pressures and flow rates of assist and shielding gases . 5 6 Welding test. 5 7 Records of test results. 5 Annex A (informative) Example of a test report form . 6 Annex B (informative) Optional parameters 8 Bibliography . 9 EN ISO 22827-1:2005iv Foreword ISO (t
22、he International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical commit
23、tee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotech
24、nical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member
25、 bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying
26、 any or all such patent rights. ISO 22827-1 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 10, Unification of requirements in the field of metal welding. ISO 22827 consists of the following parts, under the general title Acceptance tests for Nd:YAG laser
27、 beam welding machines Machines with optical fibre delivery: Part 1: Laser assembly Part 2: Moving mechanism EN ISO 22827-1:2005vIntroduction Requests for official interpretations of any aspect of this part of ISO 22827 should be sent to the Secretariat of ISO/TC 44/SC 10 via the member body in the
28、users country, a complete listing of which can be found at www.iso.org. EN ISO 22827-1:2005blank1Acceptance tests for Nd:YAG laser beam welding machines Machines with optical fibre delivery Part 1: Laser assembly 1 Scope This part of ISO 22827 specifies basic requirements and test methods for accept
29、ance testing of high-power (average power more than 100 W), lamp-pumped or laser-diode-pumped Nd:YAG laser beam welding machines for seam welding with optical fibre delivery systems. The requirements can also be applied as a part of verification testing as part of maintenance, as appropriate. If mod
30、ifications are made to a laser beam machine (rebuilding, repairs, modifications to the operating conditions, etc.) that have an effect on the acceptance testing, a repeat test may be necessary to cover the machine parameters affected by such modifications. This part of ISO 22827 applies to the beam
31、generating system, the optical delivery system and the devices for shielding and assist gases. NOTE The moving mechanism is covered by ISO 22827-2. This part of ISO 22827 can be applied as a part of the acceptance conditions for the delivery of the optic laser beam welding cell. 2 Normative referenc
32、es 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 11553-1, Safety of machinery Laser process
33、ing machines Part 1: General safety requirements ISO 11554, Optics and photonics Lasers and laser-related equipment Test methods for laser beam power, energy and temporal characteristics ISO 15614-11, Specification and qualification of welding procedures for metallic materials Welding procedure test
34、 Part 11: Electron and laser beam welding ISO 17662, Welding Calibration, verification and validation of equipment used for welding, including ancillary activities ISO 22827-2, Acceptance tests for Nd:YAG laser beam welding machines Machines with optical fibre delivery Part 2: Moving mechanism IEC 6
35、0204-1, Safety of machinery Electrical equipment of machines Part 1: General requirements IEC 60825-1, Safety of laser products Part 1: Equipment classification, requirements and users guide EN ISO 22827-1:20052 3 Terms and definitions For the purposes of this document, the following terms and defin
36、itions apply. 3.1 laser assembly laser device together with specific, normally optical, mechanical and/or electrical components for beam handling and forming ISO 11145:2001, 3.27 4 Environmental conditions and operating conditions of acceptance tests 4.1 Installation environment Laser beam welding m
37、achines shall be installed in welding cells, which also include moving mechanisms for the welding head and/or the component to be welded. The laser beam machine shall be erected and installed in such a way that the processing operation is not disturbed by environmental factors, e.g. vibrations, larg
38、e temperature variations, contaminated atmosphere. The conditions specified by the laser system manufacturer shall be fulfilled during erection and installation. 4.2 Power supply The electricity supply shall be sufficient to power the laser beam welding machine and cooling system. Voltage fluctuatio
39、ns shall be within 10 % of the voltage specified by the laser beam welding machine manufacturer. 4.3 Cooling system The temperature, flow rate, water pressure and quality of water used in the cooling system shall be in accordance with the requirements of the laser beam welding machine manufacturer.
40、When industrial water or ground water is used for cooling, installation of a particle filter or other system may be necessary to prevent impurities from entering the cooling system and to obtain the required water quality. Low-quality cooling water may result in contamination of the inner surfaces o
41、f hoses, pipes and heat exchangers, which can reduce water flow rates and diminish the efficiency of heat exchangers. This can result in overheating and failure of the laser beam machine. 4.4 Pumping light source Replacement of the pumping light sources (lamps or laser diodes) is a major maintenance
42、 operation which can necessitate renewed testing of beam power, in particular if the replacement light sources do not comply with the original specification. 4.5 Shielding and assist gas If a shielding gas or assist gas is used, they shall be in accordance with the relevant welding procedure specifi
43、cation and of the required quality. 4.6 Operating instruction for users Technical information necessary for operation, maintenance and control of the Nd:YAG laser beam welding machines, and at least the minimum information related to the safety of laser processing machines, shall be provided by the
44、supplier. EN ISO 22827-1:200535 Acceptance test 5.1 General Acceptance testing of laser machines shall include at least the tests as specified in 5.2 to 5.5 and a test of accuracy of the moving mechanism (see ISO 22827-2). 5.2 Check of parts It shall be checked that all specified parts of the equipm
45、ent are available and properly installed. 5.3 Acceptance tests for laser power and optical system 5.3.1 Testing of laser power 5.3.1.1 Laser power The laser power shall be measured in accordance with ISO 11554. 5.3.1.2 Testing of stability of laser power The stability of the laser power is classifie
46、d as follows: A: Very high stability B: High stability C: Ordinary stability D: Low stability The laser power stability shall be measured in accordance with ISO 11554. However, the stability shall only be measured only after a warm-up period of at least 30 min and during a time interval of 20 min at
47、 maximum and minimum power, respectively in accordance with Table 1. Table 1 Range of stability of laser power Acceptance criteria for class Item A B C D Stability at the maximum rated power 1,5 % 2,5 % 5,0 % 10 % Stability at the minimum rated power 1,5 % 2,5 % 5,0 % 10 % Measurement of the stabili
48、ty of the laser power shall be made at the laser beam output port of the laser device. However, when measurement at the laser beam output port of the laser device is not possible, measurements may be taken on the processing surface after optical fibre beam delivery. 5.3.2 Acceptance criteria for opt
49、ical system The beam power shall be measured before and after the optical system at maximum beam power. The optical system includes the fibre and also the final processing optics, if specified. The power loss of the optical system shall be within the value specified. However, if measurement of the beam power before the optical system is not possible, measurement of power loss can be omitted. EN ISO 22827-1:20054 The bending curvature of the optical fibre, during and after installation, shall be verified not
