Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Ardeshir Sarmast"'
Autor:
Moritz Braun, Ting Chen, Junjun Shen, Henrik Fassmer, Benjamin Klusemann, Shahram Sheikhi, Sören Ehlers, Eckehard Müller, Ardeshir Sarmast, Jan Schubnell
Publikováno v:
Materials & Design, Vol 244, Iss , Pp 113122- (2024)
Additively manufactured (AM) components—either made by laser-powder bed fusion or wire and arc additive manufacturing—typically contain process-related defects on and near surfaces that can be removed by machining. Various studies have shown that
Externí odkaz:
https://doaj.org/article/9f8d1dfe205b41e79d3a81cbb608701d
Autor:
Moritz Braun, Jan Schubnell, Ardeshir Sarmast, Harihara Subramanian, Lutz Reissig, Felix Altenhöner, Shahram Sheikhi, Finn Renken, Sören Ehlers
Publikováno v:
Journal of Materials Research and Technology, Vol 24, Iss , Pp 1692-1705 (2023)
Combining several additive manufactured (AM) parts to larger parts by welding may be required due the limited building volume of powder bed AM methods. Laser powder bed fusion (LPBF) has a great potential because it enables the production of nearly f
Externí odkaz:
https://doaj.org/article/6a673a38beb74fdaac41d65eda89fddb
Autor:
Moritz Braun, Jan Schubnell, Ardeshir Sarmast, Harihara Subramanian, Lutz Reissig, Felix Altenhöner, Shahram Sheikhi, Finn Renken, Sören Ehlers
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 8412- (2023)
Externí odkaz:
https://doaj.org/article/9af03440fc964310a7e8fd301aa8c6a3
Autor:
Jan Schubnell, Eva-Regine Carl, Ardeshir Sarmast, Manuel Hinterstein, Johannes Preußner, Marco Seifert, Christoph Kaufmann, Peter Rußbüldt, Jan Schulte
Publikováno v:
Materials, Vol 16, Iss 20, p 6769 (2023)
Laser shock peening (LSP) is a mechanical surface treatment process to modify near-surface material properties. Compared to conventional shot peening (SP) the process parameters can be finely adjusted with greater precision and a higher penetration d
Externí odkaz:
https://doaj.org/article/6c22a474c6904794b89d717b51f135a2
Publikováno v:
Metals, Vol 11, Iss 2, p 293 (2021)
Large portions of infrastructure buildings, for example highway- and railway bridges, are steel constructions and reach the end of their service life, as a reason of an increase of traffic volume. As lifetime extension of a commonly used weld detail
Externí odkaz:
https://doaj.org/article/386a3ae01c324ff08601233682832c95
Autor:
Siamak Serajzadeh, Ardeshir Sarmast
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 105:3397-3409
The effect of welding current and polarity, i.e. AC and DCEN, on imposed thermal cycles, mechanical properties, microstructural events and residual stresses was investigated in GTA welding of AA5052. A three-dimensional thermo-mechanical model was ut
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 97:1335-1346
Influence of gas tungsten arc welding on the thermal responses, residual stress distribution and final mechanical properties of the naturally age-hardened (T4) and artificially age-hardened (T6) AA2024 plates was studied. The results showed that age
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 228:413-421
In this study, a three-dimensional model has been utilized for predicting thermal responses during tungsten arc welding of AA2024-T4 plates in which double ellipsoidal heat source model was employed to consider the moving torch in the model. Furtherm