We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
INFLUENCE OF DIRECT METAL LASER SINTERING ON THE ULTRASONIC VELOCITY MEASUREMENTS.
- Authors
Grozdanic, Maria; Mihaljevic, Morana
- Abstract
As a result of additive manufacturing, where the part build-up is usually done layer by layer, parts have an anisotropic material behaviour, which directly affects the ultrasonic velocity. In ultrasonic testing, the ultrasonic velocity is one of the most important parameters to be adjusted to obtain the most accurate test results for the tested part, and it must be uniform throughout the whole volume of the part. This paper investigates whether the longitudinal wave velocity in a specimen, manufactured using the direct metal laser sintering process (DMLS), depends on the test direction. The ultrasonic velocity is determined in two perpendicular directions: the layer direction and the build-up direction. Detailed statistical data analysis is performed to determine whether there was a statistically significant difference between ultrasonic velocities in the same test direction (paired t-tests) and between the ultrasonic velocities at perpendicular directions (one-way ANOVA).
- Subjects
DIRECT metal laser sintering; LASER ultrasonics; ULTRASONIC measurement; SELECTIVE laser sintering; ULTRASONIC testing; VELOCITY measurements; ULTRASONIC waves; LONGITUDINAL waves
- Publication
Annals of DAAAM & Proceedings, 2023, Vol 34, p448
- ISSN
1726-9679
- Publication type
Article
- DOI
10.2507/34th.daaam.proceedings.058