Sökning: onr:"swepub:oai:DiVA.org:kau-87780" >
Accurate determinat...
Accurate determination of laser spot position during laser powder bed fusion process thermography
-
Zhirnov, Ivan (författare)
-
- Mekhontsev, Sergey (författare)
- National Institute of Standards and Technology, USA
-
- Lane, Brandon (författare)
- National Institute of Standards and Technology, USA
-
visa fler...
-
- Grantham, Steven (författare)
- National Institute of Standards and Technology, USA
-
- Bura, Nikola (författare)
- National Institute of Standards and Technology, USA
-
visa färre...
-
(creator_code:org_t)
- Elsevier, 2020
- 2020
- Engelska.
-
Ingår i: Manufacturing Letters. - : Elsevier. - 2213-8463. ; 23, s. 49-52
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- High-speed thermography is useful tool for researching the laser powder bed fusion process by providing thermal information in heat affected zone. However, it is not directly possible to ascertain the position of the laser spot with respect to the melt pool, which could provide key information regarding how laser energy is distributed and absorbed. In this paper, we demonstrate a procedure for registering the laser spot position with the melt pool using a bright illumination source co-axially aligned with the laser to project a sharp spot on the build plane. This spot is fixed to the laser position and used as a reference frame for registering the laser spot with the melt pool radiance temperature distribution. Measurement results demonstrate the effect of varying process parameters (laser power and scan speed) on the melt pool thermal field and respective position of the laser spot.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Nyckelord
- Additive manufacturing
- Laser powder bed fusion
- Thermography
- Maskinteknik
- Mechanical Engineering
- Materialteknik
- Materials Engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas