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Welding Processes

  • Improvement of the fatigue life of welded structures in high strength steel grades

    The fatigue properties of welded components can be improved by means of post-weld treatments, like TIG dressing or hammering. This article describes the results obtained in the research project “DURIMPROVE”, in which the effects of post-weld treatments on welds in high strength steel were investigated.

  • Unveiling the disguised complexities of Wire-Arc AM

    Driven by the demand for increased manufacturing efficiency of engineering structures, WAAM which is also known as directed energy deposition-arc (DED-arc), can basically be seen as the integration of an “additive” principle in the wire-arc welding process.

  • Fundamental aspects of acoustic emission monitoring

    Acoustic emission monitoring is an important technique for surveillance of industrial processes, especially for defining the process parameters or determining whether a machine or structure needs repair. For example, acoustic emission is particularly useful as a means to locate and characterise cracks and other defects in steel bridges. 

  • Advanced Welding Technologies For Multi-Material Design

    Global trends force the industry to manufacture lighter, safer, more environmentally friendly, more performant and cheaper products. Combining conventional metals with others or even new materials, offers designers solutions where a design consisting out of one material fails. A multi-material design exploits the material with desired properties for each part of the component or product. Multi-material design is however hindered by challenges in the field of joining technology. The prerequisite for the production of such multi-material components is the availability of suitable joining technologies. New developments for a range of welding processes has however provided the possibility to join dissimilar metals. The project “INNOJOIN” provides insight in new modern welding technologies for welding of dissimilar sheet metals and helped companies to identify the most suitable welding technology for their products.

  • Acoustic emission measurement system

    In the context of the project "SOUNDWELD", the Belgian Welding Institute has invested in an acoustic emission measurement system, which can be used as a non-destructive technique for monitoring the weld quality during welding. In the research project SOUNDWELD, this new non-destructive in-line testing technique is evaluated for different welding processes.

  • Hybrid laser welding of 5xxx series aluminium alloys

  • Micro electron beam welding

  • Micro laser welding

  • Micro TIG and plasma welding

  • Micro resistance spot welding

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