Robust Polishing - Evaluation of the polishability of coated surfaces

Reference number 2015-06889
Coordinator Volvo Personvagnar Aktiebolag - Avd 93763
Funding from Vinnova SEK 2 565 000
Project duration March 2016 - May 2019
Status Ongoing
Venture FFI - Sustainable production
Call 2015-04024-en

Purpose and goal

Crucial to cars´ perceived quality is to give the surface the right appearance. To meet surface demands on automotive parts an end-of-line repair of the surface layer is often required. Today coated parts are inspected & polished manually, which causes varying results. The aim is to better understand the mechanisms controlling the polishability of different coating systems, the goal to develop a method to test the polishability of coatings, and to transfer this into robust polishing methods for different substrates or coating materials.

Expected results and effects

The project is expected to contribute to an increased understanding of the link between process parameters and polishing results, and a more efficient implementation (and operation) of new coating systems and any post-treatment in production. The project also promotes collaboration between industry and academia, which is expected to build up research skills connected to polishability, i.e. surface preparation, surface characterisation and surface quality.

Planned approach and implementation

The project covers studies of different strategies for end-of-line repairs of coated surfaces and its rise to surface imperfections. A model for material removal (abrasive finishing of coated surfaces) will be developed based on experimental trials in a dedicated test equipment where the influence of e.g. various tools and process parameters can be studied, and studies of manual workers. The compilation of the studies is expected to lead to a consensus on polishability and to a proposed methodology for how achieved results could be communicated and put into practice.

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