Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Jan Frostevarg"'
Autor:
Adrien Da Silva, Filippo Belelli, Giorgia Lupi, Francesco Bruzzo, Benedikt Brandau, Lukas Maier, Alexander Pesl, Jan Frostevarg, Riccardo Casati, Elena Lopez, Alexander F.H. Kaplan
Publikováno v:
Materials & Design, Vol 218, Iss , Pp 110677- (2022)
The use of aluminium alloys for Additive Manufacturing is of high interest for advanced geometries and lightweight applications. In Directed Energy Deposition, a powder stock is processed with a laser beam, which offers a high process flexibility. Ho
Externí odkaz:
https://doaj.org/article/880643a7e4c748afaf273652de140e36
Publikováno v:
Materials & Design, Vol 209, Iss , Pp 109987- (2021)
The subject of Additive Manufacturing includes numerous techniques, some of which have reached very high levels of development and are now used industrially. Other techniques such as Micro Droplet Deposition Manufacture are under development and pres
Externí odkaz:
https://doaj.org/article/969c26b8cc4d4796ae4cf0583a0b3e75
Autor:
Joerg Volpp, Jan Frostevarg
Publikováno v:
Materials & Design, Vol 206, Iss , Pp 109835- (2021)
During laser beam deep penetration welding, the characteristic keyhole occurs that enables efficient energy absorption due to multiple reflections. Since this welding mode usually shows high dynamic behaviour, often a high amount of weld imperfection
Externí odkaz:
https://doaj.org/article/766b61b0ad494a538e5eb20c96ff349b
Publikováno v:
Procedia CIRP. 111:381-384
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::099f93eb0460d5d3d0f22182f4fdda13
https://doi.org/10.1016/j.procir.2022.08.171
https://doi.org/10.1016/j.procir.2022.08.171
Publikováno v:
Acta Astronautica. 189:391-397
We present the results of two sets of experiments that investigate laser-based metal-to-rock attachment techniques. Asteroids and comets have low surface gravity which pose a challenge to landers with moving parts. Such parts can generate torques and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a588e662a8f728f0d7957094f8447e2
https://doi.org/10.1016/j.actaastro.2021.08.028
https://doi.org/10.1016/j.actaastro.2021.08.028
Publikováno v:
Acta Astronautica. 182:325-331
The ability to deflect dangerous small bodies in the Solar System or redirect profitable ones is a necessary and worthwhile challenge. One well-studied method to accomplish this is laser ablation, where solid surface material sublimates, and the esca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::513da5a3d097b6297c99c8d91bc563d8
https://doi.org/10.1016/j.actaastro.2021.02.018
https://doi.org/10.1016/j.actaastro.2021.02.018
Autor:
Anandkumar Ramasamy, Alexander Kaplan, Jan Frostevarg, Stephanie M. Robertson, Jörg Volpp, Bert Kalfsbeek
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 109:2653-2662
Filler wire metallurgy was modified through temporally shaped laser pulses, controlling cooling cycles in a recently developed method. Trends were identified through efficient mapping while maintaining representative thermal cycles of welding process
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dad4fe73ee4bf86b85a10ba045f9e33
https://doi.org/10.1007/s00170-020-05749-1
https://doi.org/10.1007/s00170-020-05749-1
Thermal monitoring for directed energy deposition of stainless steel, bronze, and cobalt-based alloy
Publikováno v:
Surface and Coatings Technology. 451:129078
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7a3bfbe9dbf2803921198ab4f8e77cb
https://doi.org/10.1016/j.surfcoat.2022.129078
https://doi.org/10.1016/j.surfcoat.2022.129078
Publikováno v:
Applied Surface Science. 485:158-169
Accelerated bone grow (osseointegration) can be achieved by modifying the surface of medical implants. For this purpose, pulsed lasers can be used to successfully texture such beneficial surfaces on titanium, e.g. a BioHelix™ structure. This surfac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::916fd136e2c4d033ce4008385cf57538
https://doi.org/10.1016/j.apsusc.2019.04.187
https://doi.org/10.1016/j.apsusc.2019.04.187
Publikováno v:
Journal of Materials Processing Technology. 264:84-90
The concept using an off-axis filler wire during laser welding is introduced here in order to provide added process robustness considering gap width variations. Its stability is investigated with respect to gap width, welding speeds and powers. Geome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43beec998c304c92626a536be0f3c11a
https://doi.org/10.1016/j.jmatprotec.2018.09.003
https://doi.org/10.1016/j.jmatprotec.2018.09.003