Sökning: id:"swepub:oai:DiVA.org:ltu-27044" >
On the mechanism of...
On the mechanism of pore formation during keyhole laser spot welding
-
- Kaplan, Alexander (författare)
- Luleå tekniska universitet,Produkt- och produktionsutveckling,Joining/Welding Research Institute, Osaka University, Ibaraki, Osaka 567-0047, 11-1 Mihogaoka, Japan
-
- Mitzutani, M. (författare)
- Joining/Welding Research Institute, Osaka University, Ibaraki, Osaka 567-0047, 11-1 Mihogaoka, Japan
-
- Katayama, S. (författare)
- Joining/Welding Research Institute, Osaka University, Ibaraki, Osaka 567-0047, 11-1 Mihogaoka, Japan
-
visa fler...
-
- Matsunawa, A. (författare)
- Joining/Welding Research Institute, Osaka University, Ibaraki, Osaka 567-0047, 11-1 Mihogaoka, Japan
-
visa färre...
-
(creator_code:org_t)
- Bellingham, Wash : SPIE - International Society for Optical Engineering, 2003
- 2003
- Engelska.
-
Ingår i: First Internaional Symposium on High-Power Laser Macroprocessing. - Bellingham, Wash : SPIE - International Society for Optical Engineering. - 0819446025 ; , s. 186-191
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- An experimental and theoretical study was carried out to investigate the keyhole collapse and pore formation in keyhole laser spot welding; based on this a process theory was developed. Laser spot welding experiments were carried out mainly in liquid zinc (to simplify the investigation); X-ray imaging was used to observe keyhole behaviour i.e. collapse following switching off of the laser beam. A semi analytical mathematical model was used to simulate keyhole collapse taking into account a number of physical processes. The experimental results and mathematical analysis were used to determine the different process phases occurring during keyhole collapse, also indicating the timescales involved: post-vaporisation, excess keyhole vapour relaxation flow, inertia driven collapse, bubble contraction, recondensation, and rising and resolidification.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Nyckelord
- Produktionsutveckling
- Manufacturing Systems Engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
Hitta via bibliotek
Till lärosätets databas