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This document summarizes a study on modeling and evaluating keyhole stability during laser welding. The authors developed a semi-analytical model based on energy and pressure equations to describe keyhole properties at different welding parameters for aluminum. They evaluated the resulting dynamic characteristics of different keyholes using frequency analysis of optical observations during welding. The spring coefficient, which describes radial pressure change with radius deviation, was found to be a good i
- Author
- Jacques Oosthuizen
- Language
- EN