C7.4 Application of Laser Line Scanners for Quality Control during Selective Laser Melting (SLM)

Event
SMSI 2021
2021-05-03 - 2021-05-06
digital
Band
SMSI 2021 - System of Units and Metreological Infrastructure
Chapter
C7 Testing and Inspection
Author(s)
K. Wehnert, S. Schäfer, J. Schmitt, A. Schiffler - University of Applied Sciences Würzburg-Schweinfurt, Schweinfurt (Germany)
Pages
298 - 299
DOI
10.5162/SMSI2021/C7.4
ISBN
978-3-9819376-4-0
Price
free

Abstract

The use of laser line scanners for powder bed monitoring in 3D printing processes was investigated. It was possible to analyze dependencies in terms of exposure time due to the use of two different wavelengths of the laser line scanners. With a simplified setup – in accordance to a selective laser melting machine – the behavior of materials with nearly the same particle size as metal powder could be analyzed. In order to satisfy the conditions in the building chamber a construction platform was used. The behavior and the settings of the laser line scanner got evident, especially due to the strong reflections.

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