IIW Technical Output Brochure

IT Delivers Welding Knowhow The IIW collection of radiographs , based on ISO 5817 and used for many years in industry, research and training, is now fully digitised and incorporates new and powerful search options. This IIW electronic reference catalogue for flaw indications in welds and

castings, developed by IIW experts and distributed through DVS Media GmbH, is also being made available as the ‘Radiography Assistant’ app for Android-based tablet-PCs. A limited demonstration/educational version can be downloaded free-of-charge from Google Play Store as ‘IIW-APP ISO 5817 Radiographs’. ‘Radiography Assistant’: has intuitive layout and easy to use search functions is useful for persons with low experience supports correct interpretation of various weld imperfections classifies defects by size.

Members of C-XVI from Canada and Germany are also currently conducting a joint project to investigate laser transmission welding of thermoplastics. As a spin-off from this project, standard procedures for specimen and test designs for various polymer materials will be made available to industry thus reducing duplication of effort in this area. International ‘round robins’ are often employed to gather leading research and opinion on an issue from around the world as well as to enable participants to get abreast of latest developments. The make-up of the IIW Technical WUs is multi- national as well as multidisciplinary. C-II Arc Welding and Filler Metals frequently uses the ‘round robin’ method to reach consensus on an issue and the results are published in Welding in the World . A recent ‘round robin’ concerned chemical analysis and classification of submerged arc welding fluxes according to ISO 14174. Another concerned measurement of Bi and Pb as trace elements which promote reheat cracking in Cr-Mo-V steel weld metals. The results provided guidance to industry for setting and understanding specification limits and acceptance criteria for filler metals. Laser transmission welding. Photo courtesy: Fraunhofer Institute for Laser Technology ILT

WORKING TOGETHER

One of the tremendous strengths of the IIW is the opportunity for seamless cooperation between experts to focus on current challenges and issues in industry and to develop technical output to proactively support these needs. Joint IIW Technical WU meetings are powerful resources, and the presentation of workshops and seminars on emerging technologies and new trends in industry encourages cross-fertilisation between experts in different industry sectors.

Speeding up with Simulation ’C-V Non-destructive Testing (NDT) and Quality Assurance of Welded Products has been actively involved in writing guidelines and ISO standards about different NDT techniques. These documents are required by industry to

Knowledge Sharing ’Within the last five years, the French Corrosion Institute has developed the area of corrosion fatigue of spot welded steel. IIW has helped us to let our results become visible to the larger community of welding.

give reassurance in areas such as performance of an NDT technique, validity and standardisation of the methodology, knowledge capitalisation and feedback, before introducing any new method or practice into an established or future inspection process. A recent example of such a document is a recommendation on the use of simulation which can be used to demonstrate the performance of an NDT technique in order to accelerate some long and costly experimental qualification campaigns. IIW is the right place to establish these kinds of documents since it gathers together technology providers, industrial end users and experts in these new techniques who have a wide experience in different applications. This ensures that these documents meet industrial requirements in terms of practical use and acceptability with regards to current practices.’ Dr Bastien Chapuis, France Research Engineer at Commissariat à l’énergie atomique et aux énergies and alternative C-V Expert

As a corrosion scientist this is very important in this multidisciplinary field. It is attractive for us in particular as welding is not the centre of our research. It helps us to develop collaboration and to apply for funding within the framework of European projects.’

Dr Dominique Thierry, France Research Leader, French Corrosion Institute

At a joint seminar held in 2016 during the IIW Annual Assembly in Melbourne, Australia, members of C-XVI Polymer Joining and Adhesive Technology and C-V Non-destructive Testing and Quality Assurance of Welded Products developed many synergies in the rapidly advancing polymer joining sector in the areas of development of advanced materials and the need for standardisation and enhanced inspection methods. One strong driving trend for development of these materials is to lessen the weight of vehicles and aeroplanes to reduce fuel consumption, which in turn reduces carbon dioxide emissions. Collaboration between the two Commissions is expected to continue in the future with additional industry-focused joint sessions dealing more specifically with hybrid components, advanced carbon fibre reinforced polymer (CFRP) materials and adhesively joined parts that are important for industry and will require inspection.