ISO/TR TECHNICAL REPORT 17671-6 First edition 2005-02-15 Welding Recommendations for welding of metallic materials - Part 6: Laser beam welding Soudage Recommandations pour le soudage des matériaux metalliques- Partie 6: Soudage par faisceau laser Reference number ISO/TR 17671-6:2005(E) @ISO2005 ISO/TR 17671-6:2005(E) Contents Page Foreword.. Introduction . .. vi 1 Scope... 2 Normative references .. 3 Terms and definitions.. 3 4 Health and safety and protection of the environment... 5 Quality requirements .. 6 Equipment.... 6.1 General... 6.2 6.3 Provisions for maintenance and calibration .... 7 Qualification of welding personnel . 8 Welding procedure specification . 9 Welding procedure test ... 5 10 Consumables. 10.1 Filler metals. 10.2 Gases.. 11 Design 11.1 Overall design of structure or product .... 6 11.2 Joint design... 11.3 Joint preparation.. 12 Laser beam welding .... 12.1 Characteristics . 12.2 12.3 Assembling and fixtures , 10 12.4 Process control.. 10 12.5 Inspection and testing... 10 12.6 Imperfections.... 10 Annex A (informative) Equipment..... A.1 Description of laser process... 11 A.2 Laser beam sources A.3 Guiding, shaping and focussing the beam ..... A.4 Devices used to crate a relative movement between the laser beam and the work piece 18 A.5 Fixtures used to hold the work piece..... 18 A.6 Cooling system .... 19 A.7 Control systems ... 19 Annex B (informative) Laser beam properties... Annex C (informative) Information about weldability of metallic materials C.1 General... 22 C.2 Steels and iron alloys ... 22 C.3 .24 C.4 Aluminium and magnesium alloys.. 24 C.5 Copper and its alloys .... 24 C.6 Refractory and reactive materials ... 24 @ ISO 2005 - All rights reserved ii ISO/TR 17671-6:2005(E) C.7 Titanium and its alloys. ..25 C.8 Dissimilar metals . .25 C.9 Non-metals... .25 Annex D (informative) Information about causes of weld imperfections and their prevention.. ..26 Annex E (informative) Beam control and monitoring. .28 E.1 E.2 Focal point ..28 E.3 Beam alignment and pilot beam coincidence . ..28 E.4 .29 E.5 Beam power distribution .29 E.6 Nozzle alignment ... E.7 Pulsed beam power data . .30 E.8 Manipulators, guides, etc. . Annex F (informative) Laser beam processing .31 F.1 Laser beam cutting.... .31 F.2 Laser beam drilling... .33 F.3 Laserbeamsurfacetreatment .33 F.4 F.5 Laser beam marking and engraving..... ..35 Bibliography.. iv IsO 2005-All rights reserved ISO/TR 17671-6:2005(E) Foreword IsO (the 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 committee has been 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 electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEc Directives, Part 2. adoptedby thetechnical committees are circulated to the member bodies for voting.Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. In exceptional circumstances, when a technical committee has collected data of a different kind from that whichisnormallypublishedasanInternationalStandard("stateoftheart",forexample),itmaydecidebya simple majority vote of its participating members to publish a Technical Report. A Technical Report is entirely informative in nature and does not have to be reviewed until the data it provides are considered to be no longer valid or useful. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ISO/TR 17671-6 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee sc 10, Unification of requirements in the field of metal weldi