Infrared thermography for laser-based powder bed fusion additive manufacturing processes

Additive manufacturing (AM) has the potential to revolutionize discrete part manufacturing, but improvements in processing of metallic materials are necessary before AM will see widespread adoption. A better understanding of AM processes, resulting from physics-based modeling as well as direct proce...

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Bibliographic Details
Main Authors: Moylan, Shawn, Whitenton, Eric, Lane, Brandon, Slotwinski, John
Format: Conference Proceeding
Language:English
Subjects:
Additive manufacturing
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Design of experiments
Infrared lasers
Infrared radiation
INFRARED THERMOGRAPHY
Laser applications
LASERS
Machining
MANUFACTURING
Metrology
Powder beds
POWDERS
SIMULATION
TEMPERATURE MEASUREMENT
Thermography
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Summary:Additive manufacturing (AM) has the potential to revolutionize discrete part manufacturing, but improvements in processing of metallic materials are necessary before AM will see widespread adoption. A better understanding of AM processes, resulting from physics-based modeling as well as direct process metrology, will form the basis for these improvements. Infrared (IR) thermography of AM processes can provide direct process metrology, as well as data necessary for the verification of physics-based models. We review selected works examining how IR thermography was implemented and used in various powder-bed AM processes. This previous work, as well as significant experience at the National Institute of Standards and Technology in temperature measurement and IR thermography for machining processes, shapes our own research in AM process metrology with IR thermography. We discuss our experimental design, as well as plans for future IR measurements of a laser-based powder bed fusion AM process.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4864956