BS EN ISO 15614-2:2005 pdf – Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 2: Arc welding of aluminium and its alloys.
1 Scope This document specifies how a preliminary welding procedure specification is qualified by welding procedure tests. This document is part of a series of standards, details of this series are given in EN ISO 15607:2003, Annex A. This document defines the conditions for the execution of welding procedure tests and the range of qualification for welding procedures for all practical welding operations within the range of variables listed in Clause 8. This document applies to the arc welding of wrought and cast aluminium and its alloys. In this document the term aluminium stands for aluminium and for aluminium alloys. This document does not apply to finishing welding of aluminium castings which is dealt by prEN ISO 15614-4. Arc welding of aluminium is covered by the following welding processes in accordance with EN ISO 4063: 131 : metal inert gas welding (MlG welding); 141 : tungsten inert gas welding (TlG welding); plasma arc welding. NOTE Specific service, material or manufacturing conditions may require more comprehensive testing than is specified by this document (see 7.1). The principles of this document may be applied to other fusion welding processes. 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. EN 515, Aluminium and aluminium alloys — Wrought products — Temper designations. EN 571-1, Non destructive testing — Penetrant testing — Part 1: General principles.
ISO 9017, Destructive tests on welds in metallic materials — Fracture test. ISO 10042, Arc-welded joints in aluminium and its weldable alloys — Guidance on quality levels for imperfections. ISO 14175, Welding consumables — Shielding gases for arc welding and cutting. ISO 14732, Welding personnel — Approval testing of welding operators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials. ISO 17635, Non-destructive testing of welds -— General rules for fusion welds in metallic materials . ISO 17636, Non-destructive testing of welds —Radiographic testing of fusion-welded joints. ISO 17637, Non-destructive testing of welds — Visual testing of fusion-welded joints ISO 17639, Destructive tests on welds in metallic materials — Macroscopic and microscopic examination of welds. ISO/TR 15608, Welding — Guidelines for a metallic material grouping system. ISO/TR 17671-1, Welding — Recommendations for welding of metallic materials — Part 1: General guidance for arc welding. ISO/TR 17671-4, Welding — Recommendations for welding of metallic materials — Part 4: Arc welding of aluminium and aluminium alloys. 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 15607:2003 and the following apply. 3.1 finishing welding welding carried out during production in order to remove casting defects and core openings to ensure the agreed quality of castings 4 Preliminary welding procedure specification (pWPS) The preliminary welding procedure specification shall be prepared in accordance with EN ISO 15609-1. It shall specify the tolerance for all the relevant parameters. Guidance for the welding of aluminium is given in ISO/TR 17671-1 and ISO/TR 17671-4.
The welder or welding operator who undertakes the welding procedure test satisfactorily in accordance with this document is qualified for the appropriate range of qualification in accordance with EN ISO 9606-2 or ISO 14732, providing that the relevant testing requirements are met. 6 Test piece 6.1 General The welded joint to which the welding procedure will relate in production shall be represented by making a standardized test piece or pieces, as specified in 6.2. Where the production/joint geometry requirements do not represent the standardized test pieces as shown in this document, the use of EN ISO 15613 shall be required. 6.2 Shape and dimensions of test pieces 6.2.1 General The length or number of test pieces shall be sufficient to allow all required tests to be carried out. Additional test pieces, or longer test pieces than the minimum size, may be prepared in order to allow for extra and or for re-testing specimens (see 7.6). For all test pieces except branch connections (see Figure 4) and T-joints (see Figure 3) the material thickness, t, shall be the same for both plates/pipes to be welded. If required by the application standard, the direction of working, e.g. for extrusion, shall be marked on the test piece. The material thickness and/or pipe outside diameter of the test pieces shall be selected in accordance with 126.96.36.199 to 188.8.131.52. The shape and minimum dimensions of the test piece shall be as follows: 6.2.2 Butt joint in plate with full penetration The test piece shall be prepared in accordance with Figure 1.