Improving Global Quality of Life
Improving Global Quality of Life
Improving Global Quality of Life
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Reduction and/or elimination <strong>of</strong> distortion and residual stresses (near-net welding) will also have a major<br />
impact on the quality and structural integrity performance <strong>of</strong> welds, leading to corresponding savings in<br />
production costs. Research should be focusing on the “on-line techniques” (such as mechanical tensioning)<br />
to introduce compressive residual stresses while reducing/eliminating distortion. Developing capability<br />
to predict distortion <strong>of</strong> complex weld geometry and understand the effect <strong>of</strong> residual stresses on fatigue,<br />
corrosion and fracture is essential for many applications.<br />
In the longer term, basic research activities will be scientifically challenging to replace Cr and Ni in welding<br />
consumables while more alloy development for high performance welded structures will remain as high<br />
priority areas. In this context, new filler metals, more weldable alloys and advanced joining techniques must<br />
improve productivity while reducing emissions <strong>of</strong> toxic fumes and other pollutants to contribute to achieve<br />
improved environment and safer working conditions.<br />
Finally,<br />
All <strong>of</strong> the scientific challenges identified above require attracting globally top-quality personnel,<br />
scientists and enhancing their core competency for innovations while developing solutions for the<br />
identified high-priority R&D needs and problems.<br />
IIW with its Working Units should further develop its knowledge management systems and<br />
continue to create forums to develop and conduct tasks, and support a high level <strong>of</strong> global scientific<br />
awareness.<br />
IIW with its global organisation should provide a forum to identify research needs and emerging<br />
scientific challenges to help with the establishment <strong>of</strong> a baseline <strong>of</strong> knowledge and set clear<br />
directions and recommendations for further research in member countries while providing quick<br />
dissemination <strong>of</strong> new findings.<br />
34 <strong>Improving</strong> <strong>Global</strong> <strong>Quality</strong> <strong>of</strong> <strong>Life</strong> Through Optimum Use and Innovation <strong>of</strong> Welding and Joining Technologies