Keywords

thermography, thermophysical properties, manufacturing materials

Abstract

Active thermography techniques are of interest for quality assurance of additive manufacturing processes. However, accurate measurements of thermophysical properties of materials are required to successfully implement active thermography. In particular, the spectral absorption coefficient of materials commonly used in additive manufacturing must be known to accurately predict the spatial distribution of thermal energy generated from absorption of power emitted by a laser or pulsed flash lamp. Accurate measurements of these optical properties are also needed to develop greater understanding of additive manufacturing processes that rely on radiative heat transfer to fuse powders. This paper presents spectral absorption coefficient measurements and uncertainty estimates of fully and partially dense ABS, PLA, and Polyamide 12 samples.

Original Publication Citation

Nicholas J. Wallace, Matthew R. Jones, Nathan B. Crane, “Spectral Absorption Coefficient of Additive Manufacturing Materials,” ASME Journal of Thermal Sciences and Engineering Application, TSEA-20-1502S, Published online 10/21/2020, https://doi.org/10.1115/1.4048836.

Document Type

Peer-Reviewed Article

Publication Date

2020-12-21

Publisher

ASME Journal of Thermal Sciences and Engineering Application

Language

English

College

Ira A. Fulton College of Engineering and Technology

Department

Mechanical Engineering

University Standing at Time of Publication

Full Professor

Share

COinS