Reduced VARIation in the manufacturing processes enabling LIGHTweight welded structures (VariLight)
|Coordinator||Volvo Construction Equipment AB - VOLVO CONSTRUCTION EQUIPMENT AB, Eskilstuna|
|Funding from Vinnova||SEK 4 745 000|
|Project duration||October 2016 - October 2019|
|Venture||FFI - Sustainable production|
Purpose and goal
The primary goal is to enable weight reduction of welded structures which are subjected to fatigue in order to reduce the environmental impact and improve productivity. This will be achieved by studying and mapping the sources of variation and determine possibilities to reduce them in manufacturing processes (welding and cutting), structure strength, and load estimation. A second goal is to develop operating competence for the Swedish welding industry and influence education.
Expected results and effects
The expected results are: - Map of the sources of variation - Enable further introduction of more weight-to-strength efficient material without increasing the risk of failures (enable 20% weight reduction) - Predictive tool for incorporation of welding residual stresses and their relaxation rate in various spectrum loading - Recommendations and guidelines for manufacturing processes and design procedures with larger accuracy and reduced scatter
Planned approach and implementation
The project work will be conducted in seven workpackages. WP1 is handling project management and dissemination. WP2-WP6 are studying the variation in production, cutting, testing, residual stress analysis, and load analysis. WP7 aims at connecting the work in WP2-6 to get a holistic approach. The major work will be performed by post-docs at Volvo CE, PhD student at KTH, and researchers at KTH and Chalmers, with support by specialist in industry. The results will be disseminated through conferences, scientific papers, academic theses and by education.