Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Joerg Volpp"'
Autor:
Joerg Volpp, Yuji Sato, Masahiro Tsukamoto, Lewin Rathmann, Marius Möller, Samuel J. Clark, Kamel Fezzaa, Tim Radel, Kevin Klingbeil
Publikováno v:
Results in Materials, Vol 22, Iss , Pp 100583- (2024)
Material properties of metals and metal alloys at high temperatures are often unknown, but necessary to understand physical mechanisms for prediction and improvement of high temperature processes, such as laser beam technologies. Surface tension is a
Externí odkaz:
https://doaj.org/article/616120903d5d485988e6c0a5d52e2ad5
Autor:
Joerg Volpp
Publikováno v:
SN Applied Sciences, Vol 5, Iss 9, Pp 1-12 (2023)
Abstract Surface tension is a material property that is needed to describe fluid behaviour, which impacts industrial processes, in which molten material is created, such as thermal cutting, welding and Additive Manufacturing. In particular when using
Externí odkaz:
https://doaj.org/article/2283f90f07df4751b88367b125e5790b
Publikováno v:
Alloys, Vol 2, Iss 3, Pp 140-147 (2023)
Laser materials processing includes rapid heating to possibly high temperatures and rapid cooling of the illuminated materials. The material reactions can show significant deviations from equilibrium processing. During processing of complex materials
Externí odkaz:
https://doaj.org/article/ae7800359c014a2cbb6d860654431a2b
Autor:
Joerg Volpp
Publikováno v:
Applied Sciences, Vol 14, Iss 9, p 3778 (2024)
Surface tension is an important characteristic of materials. In particular at high temperatures, surface tension values are often unknown. However, for metals, these values are highly relevant in order to enable efficient industrial processing or sim
Externí odkaz:
https://doaj.org/article/de37a4e1c00e4a4ab926382038628ec3
Autor:
Joerg Volpp
Publikováno v:
Heliyon, Vol 9, Iss 10, Pp e21021- (2023)
Laser beam absorption is the basic effect to enable many high-temperature applications and processes. However, high temperature absorption data of metals is often not available or based on theoretical assumptions. In this work, using a newly develope
Externí odkaz:
https://doaj.org/article/79c681a590e04a36b59c386c9f3f419b
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:
Applied Sciences, Vol 11, Iss 7, p 3132 (2021)
Laser Powder-Bed Fusion (LPBF) is one method in Additive Manufacturing where layer-wise complex structures can be built. However, although the LPBF machines produce promising parts, the efficiency and process speed are typically still low, which can
Externí odkaz:
https://doaj.org/article/271d58de387a482aaef292e80c55d564
Laser surface hardening provides for many advantages in terms of flexible production due to very localized and controlled energy input into the material. Laser processing offers the possibility to treat surfaces in order to locally strengthen the are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65319391c7edb54f04a22f1cae8dc19e
Autor:
Patrick Faue, Lewin Rathmann, Marius Möller, Mahmudul Hassan, Samuel J. Clark, Kamel Fezzaa, Kevin Klingbeil, Brodan Richter, Joerg Volpp, Tim Radel, Frank E. Pfefferkorn
Publikováno v:
CIRP Annals.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35104a41282ea623bd8585c29f528072
https://doi.org/10.1016/j.cirp.2023.04.026
https://doi.org/10.1016/j.cirp.2023.04.026