IIW White Paper

Needs and challenges in welding and joining technologies

5.1 Innovations in welding and joining processes................................................................. 36 Robotic welding ................................................................................................................. 36 Renaissance for EB welding .............................................................................................. 37 Laser beam welding .......................................................................................................... 38 Laser hybrid welding .......................................................................................................... 38 Friction Stir Welding (FSW).................................................................................................. 39 The Magnetic Pulse Technology (MPT) ............................................................................ 40 Structural adhesives ........................................................................................................... 41 Composites ......................................................................................................................... 41 Higher automation, productivity and quality control..................................................... 42 Advanced technologies for maintenance, repair and life extension.......................... 45 5.3.1 NDT of welds by use of radiography, technical radiology & computer tomography...................................................................................................... 45 5.3.2 NDT of welds by use of ultrasound.................................................................................... 45 5.3.2.1 Advanced UT techniques.................................................................................................. 45 5.3.2.2 Ultrasonic testing of austentic welds ................................................................................ 47 5.3.2.3 Ultrasonic guides waves .................................................................................................... 48 5.3.3 NDT of welds by use of electric, magnetic and thermal techniques ........................... 49 5.4 NDT modelling..................................................................................................................... 49 5.5 NDT and structural health monitoring (SHM) of welded structures and composite structures ................................................................................................. 50 5.6 Developments with “local engineering” & SHM towards “ Intelligent welded structures”.......................................................................................... 50 5.7 Strategies to face technological challenges in welding and joining technologies................................................................................................... 51 5.1.1 5.1.2 5.1.3 5.1.4 5.1.5 5.1.6 5.1.7 5.1.8 5.2 5.3

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Through Optimum Use and Innovation of Welding and Joining Technologies

Improving Global Quality of Life