Abstract
We have developed a novel process integration technology for heat treatment by mounting a fiber laser beam unit on a turning center. We improved the production site working environment using the method for implementing on-machine laser heat treatment securely on recent multi-function machine tools equipped with multi-axis motion control. A diffractive optical element (DOE) optical system was used to create a line-focused beam, and on-machine laser heat treatment was carried out efficiently on various large-area components. Effective irradiation conditions were demonstrated from both experimental and analytical aspects.
