Camera-based closed-loop control for beam positioning during deep penetration welding by means of keyhole front morphology

Dilger P, Eschner E, Schmidt M (2020)


Publication Language: English

Publication Type: Conference contribution, Original article

Publication year: 2020

Publisher: Elsevier B.V.

Pages Range: 758-762

Conference Proceedings Title: Procedia CIRP

Event location: Online

URI: https://www.sciencedirect.com/science/article/pii/S2212827120313287

DOI: 10.1016/j.procir.2020.09.140

Abstract

Within this paper, we present a closed-loop control system for beam positioning during laser deep penetration welding of sheet metals. The system is comprised of a high-speed camera arranged coaxially to the laser beam on a welding head and linear stages for positioning of the specimen. It is shown that the keyhole front morphology correlates with the position of the seam in butt joint configuration. Within our closed-loop control prototype, this correlation is extracted by an image processing algorithm in a real-time environment. First experiments show that our system is able to adaptively correct the beam position with sufficient accuracy.

Authors with CRIS profile

Additional Organisation(s)

How to cite

APA:

Dilger, P., Eschner, E., & Schmidt, M. (2020). Camera-based closed-loop control for beam positioning during deep penetration welding by means of keyhole front morphology. In M. Schmidt, F. Vollertsen, E. Govekar (Eds.), Procedia CIRP (pp. 758-762). Online: Elsevier B.V..

MLA:

Dilger, Pablo, Eric Eschner, and Michael Schmidt. "Camera-based closed-loop control for beam positioning during deep penetration welding by means of keyhole front morphology." Proceedings of the 11th CIRP Conference on Photonic Technologies [LANE 2020], Online Ed. M. Schmidt, F. Vollertsen, E. Govekar, Elsevier B.V., 2020. 758-762.

BibTeX: Download