IIW Annual Report 2021

imaging methods, and passed a resolution on the new FDIS stage. The newly-founded Working Group on a Handbook on testing anisotropic materials, under the leadership of Channa Nageswaran, was able to gain the cooperation of a number of new international experts. The Working Group for the development of a new revision of the ISO standard of the MMM method, headed by Uwe Zscherpel, was closed after successful submission.The new Working Group Eddy Current Arrays, led by Casper Wassink, is also enjoying great interest. Numerous experts from all over the world have expressed their cooperation here and have already drawn up a working agenda for 2022.

C-VI / TERMINOLOGY Mr Jérôme Dietsch

Commission VI continues its close collaboration with ISO Technical Commitees on welding and allied process and on plastics joining for the development of international standards covering the terminology for these fields. During the 2021 Annual Assembly, the draft on laser welding terminology was finalised and a resolution was taken to forward it to ISO. Progress was also made on the health and safety terminology and the standard should be published by the end of the year. Work on plastics joining and thermal cutting terminology is ongoing.

C-VII / MICROJOINING AND NANOJOINING Prof. Guisheng Zou

At the Annual Assembly C-VII had 20 presentations experts from more than 12 countries in two half-day sessions (one as a joint meeting with C-XVII). The topics included many aspects of micro- and nano-joining, including materials, processes and methods. The multi-discipline nature of C- VII attracted many much interest from other different Commissions. The possibility of an online intermediate meeting during the 5th International Conference on Nano and Micro Joining (NMJ) to be held in Germany in December 2022 was also discussed.

C-VIII / HEALTH, SAFETY AND ENVIRONMENT Eur. Ing. Geoff Melton

Welding fume continues to dominate the activities of this Commission. Occupational exposure limits for the constituents of welding fume are being reduced so the welding industry needs to understand the mechanisms and improved ways of controlling exposure. In 2018 IARC publish Monograph 118, classifying fume and UV radiation from welding as Group 1 carcinogens. In response, C-VIII has published a statement on ‘Lung Cancer and Welding’.

C-IX / BEHAVIOUR OF METALS SUBJECTED TO WELDING Dr Hee Jin Kim

As usual, many topics were covered relating to the behaviour of metallic materials subjected to welding in a variety of metals: ferritic, Cr-Mo and stainless steels, Ni-base and non-ferrous alloys. Duplex stainless steels remain a popular research subject. With the increased interest in additive manufacturing (AM), the topic of metallurgy of AM materials is becoming a new scope of this Commission.

C-X / STRUCTURAL PERFORMANCES OF WELDED JOINTS - FRACTURE AVOIDANCE Prof. Mitsuru Ohata

The C-X meeting in 2021 included 10 technical documents submitted from four countries in the field of fracture mechanics testing, modelling and analysis of fracture, and residual stress evaluation. Fruitful discussion was held on the topic of the recent development of fracture toughness test procedure for welds. Prof. Minami completed his term as chair of the Commission and Prof. Ohata was elected as the new chair. The WG-A which was active for 7 years from 2014 to 2021 was disbanded. The WG-results will be published soon in Welding in the World .

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