Important results from the project
The project demonstrated that laser ultrasound (LUS) can measure the depth of hardening and surface hardness of induction hardened components with high accuracy. The results correlated well with destructive tests (R² = 97% for depth of hardening and 87% for surface hardness). The objectives were met and the project also contributed with new methods for signal analysis and calibration.
Expected long term effects
The project is expected to enable non-destructive quality control of all components in the production of crankshafts for the truck industry, reducing material waste, energy use and lead times. It strengthens the competitiveness of Swedish industry and contributes to increased digitalization and sustainability.
Approach and implementation
The project was carried out through practical measurements on crankshafts with LUS, comparisons with destructive tests and development of analysis methods. Three cases were studied: crankshafts, hardened steel and nitrocarburization. The results were documented in technical sub-reports.
External links
The project description has been provided by the project members themselves and the text has not been looked at by our editors.
