Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Jeff Irwin"'
Autor:
Atsushi Momose, Ryosuke Ueda, Mingjian Cai, Zhuoxuan Zhao, Sam Kalirai, Maderych Stan, Jeff Irwin, Hiroki Kawakami, Pouria Zangi, Pascal Meyer, Martin Börner, Joachim Schulz
Publikováno v:
Developments in X-Ray Tomography XIV.
Publikováno v:
Additive Manufacturing. 26:258-269
Thermal modeling of additive manufacturing processes such as laser powder bed fusion is able to calculate a thermal history of a build. This simulated thermal history can in turn be used as an input to further simulate temperature related characteris
Publikováno v:
Additive Manufacturing. 46:102078
One of the challenges for process control of laser powder bed fusion additive manufacturing lies in thermal control. Excessively low laser power may lead to incomplete melting, while too high laser power can lead to keyholing, increasing the porosity
Publikováno v:
Additive Manufacturing. 16:73-80
A three-dimensional finite element model is developed to allow for the prediction of temperature, residual stress, and distortion in multi-layer Laser Powder-Bed Fusion builds. Undesirable residual stress and distortion caused by thermal gradients ar
Publikováno v:
Additive Manufacturing. 30:100903
Thermo-mechanical finite element modeling of additive manufacturing processes, such as Directed Energy Deposition and Laser Powder Bed Fusion, has been widely applied for the prediction and mitigation of part distortion. However, as the size of model
Publikováno v:
Additive Manufacturing. 29:100771
Numerical simulation has been posited as a key tool to reduce the unwanted distortion which occurs during laser powder bed fusion additive manufacturing, yet the scale and speed of the process makes traditional moving source modeling impractical. In
This chapter outlines the methodology to numerically solve the equations which describe the thermal and mechanical equations for AM processes. This discussion follows that used by the Netfabb Simulation tool which was used to complete the FE validati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13e197ae6b474d338a13bfbbad2460da
https://doi.org/10.1016/b978-0-12-811820-7.00003-3
https://doi.org/10.1016/b978-0-12-811820-7.00003-3
Autor:
Jeff Irwin
Due to the repeated thermal cycling that occurs with the processing of each subsequent layer, the microstructure of additively manufactured parts undergoes complex changes throughout the deposition process. Understanding and modeling this evolution p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89781dee99f9719b68767e6f4de46df9
https://doi.org/10.1016/b978-0-12-811820-7.00009-4
https://doi.org/10.1016/b978-0-12-811820-7.00009-4
Autor:
Allison M. Beese, Lei Chen, Long-Qing Chen, Erik R. Denlinger, Alexander J. Dunbar, Michael Gouge, Jarred C. Heigel, Jeff Irwin, Yanzhou Ji, Pan Michaleris
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abe65d54cf7e43764c74bd44b1ed212b
https://doi.org/10.1016/b978-0-12-811820-7.00023-9
https://doi.org/10.1016/b978-0-12-811820-7.00023-9
Autor:
Michael Gouge, Jeff Irwin
The thermo-mechanical modeling of laser powder bed fusion processes using traditional moving source methods is impractical due to the requirements for both spatial and temporal discretization of the problem according to good finite element practice.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0624fd22bb82f0afacf37a2602fd3ea3
https://doi.org/10.1016/b978-0-12-811820-7.00018-5
https://doi.org/10.1016/b978-0-12-811820-7.00018-5