Reduced VARIation in the manufacturing processes enabling LIGHTweight welded structures (VariLight)

Reference number 2016-03363
Coordinator Volvo Construction Equipment AB - VOLVO CONSTRUCTION EQUIPMENT AB, Eskilstuna
Funding from Vinnova SEK 4 745 000
Project duration October 2016 - October 2019
Status Ongoing
Venture FFI - Sustainable production
Call 2015-06854-en

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.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.