BS EN ISO 15614-11:2002 pdf – Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 11: Electron and laser beam welding.
1 Scope This European Standard specifies how a welding procedure specification for electron or laser beam welding is qualified by a welding procedure test. This standard is a part of a series of standards, details of this series are given in prEN ISO 1 5607, annex A. It defines the conditions for the execution of welding procedure qualification tests and the limits of validity of a qualified welding procedure for all practical welding operations within the range of variables listed in clause 8. Tests shall be carried out in accordance with this standard together with additional tests when specified. This standard applies to metallic materials, irrespective of the shape of the parts, their thicknesses, manufacturing method (rolling, forging, casting, sintering, etc.) and their heat treatment. It covers unlimitedly the production of new parts and repair work. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 571 -1 , Non destructive testing — Penetrant testing — Part 1 : General principles. EN 895, Destructive tests on welds in metallic materials — Transverse tensile test. EN 91 0, Destructive tests on welds in metallic materials — Bend tests. EN 970, Non-destructive examination of fusion welds — Visual examination. EN 1 043-2, Destructive test on welds in metallic materials — Hardness test — Part 2: Micro hardness testing on welded joints. EN 1 290, Non-destructive examination of welds — Magnetic particle examination of welds.
EN ISO 6947, Welds — Working positions — Definitions of angles of slope and rotation (ISO 6947:1 993). prEN ISO 1 5607, Specification and approval of welding procedures for metallic materials – General rules (ISO/DIS 1 5607:2000). prEN ISO 1 5609-3:2000, Specification and approval of welding procedures for metallic materials – Welding procedure specification — Part 3: Electron beam welding (ISO/DIS 1 5609-3:2000). prEN ISO 1 5609-4:2000, Specification and approval of welding procedures for metallic materials – Welding procedure specification — Part 4: Laser beam welding (ISO/DIS 1 5609-4:2000). EN ISO 1 391 9-1 , Welding — Electrons and laser beam welded joints — Guidance on quality levels for imperfections — Part 1 : Steel (ISO 1 391 9-1 :1 996). prEN ISO 1 391 9-2, Welding — Electron and laser beam welded joints — Guidance on quality levels for imperfections — Part 2: Aluminium and its weldable alloys (ISO/FDIS 1 391 9-2:1 999).
3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in prEN ISO 1 5607, prEN ISO 1 5609-3 and prEN ISO 1 5609-4 apply. 4 Welding procedure specification (WPS) A pWPS (preliminary welding procedure specification) shall be prepared in accordance with prEN ISO 1 5609-3 for electron beam welding and prEN ISO 1 5609-4 for laser beam welding. It shall specify the tolerances for all the relevant parameters. A WPS shall be classified as pWPS until it is qualified in accordance with this standard. The welding procedure specification (WPS) shall give details on how a welding operation is to be performed, including tacking and fixturing. 5 Welding procedure test The manufacture and testing of test pieces shall be in accordance with clauses 6 and 7 of this standard. In order to take into account the service performance needs of the products, the qualification may be made according to any of the acceptance levels B, C or D as defined in EN ISO 1 391 9-1 for steels or in prEN ISO 1 391 9- 2 for aluminium and its alloys. The quality level necessary in each case should be specified by the application standard or the responsible designer. 6 Test piece 6.1 General The assembly to which the electron or laser beam welding procedure applies in production may be represented by one or more standardized test pieces as defined in 6.2. 6.2 Shape and dimensions of test pieces The test pieces shall be of sufficient size to ensure an adequate heat distribution and for the application of non- destructive and/or destructive tests. The test piece shall be designed to represent, as far as possible, the component and joint geometry and shall be specified. One or more additional test pieces or a longer test piece than the minimum size, may be used in order to allow for extra and/or for re-testing specimens, according to 7.5.