M. Lammers
K. Biester
N. Schwarz
J. Hermsdorf
S. Kaierle
H. Ahlers

Automatic changing of weld deposit for additive manufacturing of hybrid metal-glass components using direct laser deposition

Proc. Lasers in Manufacturing (LiM)
Type: Zeitschriftenaufsatz (non-reviewed)
Direct Laser Deposition is a manufacturing process, that enables Additive Manufacturing of nearly any fusible material ranging from metal to glass feedstock. For generating hybrid components out of steel and fused silica, system technology with coaxial beam guidance using different laser beam sources can be used to enable the direct manufacturing of optical, structural and thermal elements. To suit both processes, a wide velocity range regarding the weld material feed from 0.1 to 5 m/min is required. In this paper a prototype machine for material feeding and changing is presented, that is capable of processing both metal wire and glass fiber. In order to determine process-critical parameters, preliminary tests are carried out to determine the requirements for the system. The paper also shows how the prototype system performs in terms of changing and feeding the wires as well as fibers with a focus on wear and changing cycles