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