EN ISO 15620:2000

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Welding knowledge
      4.1 Process
      4.2 Materials and material combinations
      4.3 Friction welding machines
5 Quality requirements
      5.1 General
      5.2 Pre-welding conditions
      5.3 Post-welding treatment
      5.4 Quality assurance
6 Welding procedure specification (WPS)
      6.1 General
      6.2 Information related to the manufacturer
      6.3 Information related to the material
      6.4 Welding parameters
      6.5 Joint
      6.6 Optional devices
7 Welding procedure approval
      7.1 Principles
      7.2 Welding procedure tests
      7.3 Welding procedure approval record (WPAR)
      7.4 Previous experience
      7.5 Circumstances mandating requalification
      7.6 Machine-specific nature of a WPS
      7.7 Requalification procedure requirements
8 Welding personnel
      8.1 Friction welding machine operator
      8.2 Friction welding machine setter
      8.3 Welding coordination personnel (supervisor)
Table 1 - Classification of friction welding processes
Table 2 - Suggested bend diameters for selected materials
Table 3 - Location of specimens for bend testing of tubular
          weldments
Table G.1 - Characteristics of friction welded components
Figure 1 - Diagram showing direct drive rotational friction
           welding
Figure 2 - Diagram showing typical relationships of
           characteristics for friction welding at constant
           rotational speed (friction welding, process No. 42
           in accordance with EN ISO 4063)
Figure 3 - Diagram showing inertia friction welding
Figure 4 - Diagram showing typical relationships of
           characteristics for inertia friction welding
           (friction welding, process No. 42 in accordance
           with EN ISO 4063)
Figure 5 - Rotational friction welding methods
Figure 6 - Schematic diagram of a direct drive direction
           welding machine of horizontal configuration
Figure 7 - Preparation of specimens for bend testing joints
           between solid components
Figure 8 - Specimens for bend testing joints between hollow
           components and solid or plate components
Annex A (informative) Relationship of welding parameters
Annex B (informative) Additional processes based on friction
Annex C (informative) Material combinations weldable by
                      friction welding
Annex D (informative) Guidelines for quality assurance
Annex E (informative) Examination and test
Annex F (informative) Manufacturer's friction welding
                      procedure specification (WPS)
Annex G (informative) Characteristics of friction welded
                      components
Annex H (informative) Welding procedure approval record form
                      (WPAR)
Annex ZA (informative) Clauses of this European Standard
                       addressing essential requirements or
                       other provisions of EU Directives

This standard specifies requirements for the friction welding of components manufactured from metals. It specifies requirements particular to rotational friction welding related to welding knowledge, quality requirements, welding procedure specification, welding procedure approval and welding personnel. This standard is appropriate where a contract, an application standard or regulatory requirement requires the demonstration of the manufacturer' s capability to produce welded constructions of a specified quality. It has been prepared in a comprehensive manner to be used as a reference in contracts. The requirements given may be adopted in full or some may be deleted, if not relevant to the construction concerned.