IIW Annual Report 2022

IIW WORKING UNITS

C-I / ADDITIVE MANUFACTURING, SURFACING, AND THERMAL CUTTING Mr Ing. Doug Kautz

Commission I had a successful Annual Assembly where 8 papers papers were presented at the Commission meeting. Terms of Reference were approved for the main commission as well as each of the sub-Commissions. A new Vice Chair, Matteo Pedemonte from Italy was elected. A successful symposium for Additive Manufacturing was held during the Assembly in conjunction with several other commissions. An online intermediate meeting with Commissions IV and XII was held in March.

C-II / ARC WELDING AND FILLER METALS Dr Zhuyao Zhang

Commission II is focused mainly on welds produced by arc welding and on the filler metals which are used therefore. Its activities are set on the metallurgy of weld metals, the influence of the chemical composition and minor elements on the mechanical, corrosion and damage weld behavior and on the reliability of welds in practical service. he Commission work is determined by various issues of filler metal optimization and development in respect to metallurgy, new material grades, new arc welding processes and practical applications. Microstructural interpretation of weld metals, establishing of adequate test procedures for welds and standardization lthough there is a thematic overlap with other IIW commissions in some general technical topics of interests, the differentiation to other commissions, especially Although there is a thematic overlap with other IIW commissions in some general technical topics of interests, the differentiation to other commissions, especially to Commission IX, is the technical approach to these topics. While Commission II focuses on the weld metal by a technology driven approach other Commissions are focusing on base metals which are subjected to welding from a more scientific point of view.

C-III / RESISTANCE WELDING, SOLID STATE WELDING AND ALLIED JOINING PROCESS Prof. Dr Ing. Jorge dos Santos

Commission III maintained in 2022 a high number of participants and technical contributions. The main topic investigated in the area of resistance welding was liquid metal embrittlement (LME). In the solid state welding focus was the wear behaviour of FSW and refill FSSW welding tools. The participation of young professionals in C-III was noticeably high. A tendency of increasing contributions in the topics of machine learning and general data management.

C-IV / POWER BEAM PROCESSES Dr Herbert Staufer

Together with Commission I and Commission XII, the Commission works to establish more reliable welding and joining technologies with higher productivities through a deep understanding of the physical phenomena governing beam processes. In this joint group especially the laser based additive manufacturing process will be investigated.

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