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Lai et al. - Google Patents

In-Situ Thermal Imaging of Laser Powder Bed Fusion: Investigating the Influence of Preheating Temperatures on Cooling Rates and Melt Pool Dynamics

Lai et al.

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Document ID
15145737046350428264
Author
Lai Y
Phan M
Zhu C
Davies M
Maddison G
Hobbs M
Todd I
Willmott J
Publication venue
Available at SSRN 4516994

External Links

Snippet

Additive manufacturing (AM) processes, such as laser powder bed fusion (LPBF), require in- situ monitoring techniques to ensure the quality of the manufactured parts. In this work, an in- situ near-infrared (NIR) thermal monitor system was developed for LPBF using a custom …
Continue reading at papers.ssrn.com (PDF) (other versions)

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry
    • G01J5/02—Details
    • G01J5/04—Casings Mountings
    • G01J5/041—Mountings in enclosures or in a particular environment
    • G01J5/043—Prevention or determination of dust, smog or clogging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry
    • G01J5/0003—Radiation pyrometry for sensing the radiant heat transfer of samples, e.g. emittance meter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/72—Investigating presence of flaws
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry
    • G01J2005/0048—Calibrating; Correcting

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