Results 11 to 20 of about 35,423 (257)

Quasi-Uniform Density Non-Solid Infill Strategy for Axisymmetric Non-Planar Additive Manufacturing [PDF]

Applied Sciences
Non-solid infill generation in Non-Planar Additive Manufacturing (NPAM) is still an open problem. This is due to mathematical complexities from curvature distortion, as well as bridging limitations inherent in some NPAM processes.
Alvaro Guzman-Bautista, Adrián López-Arrabal, Elio Sanchez-Oro-Aguado, Andrea Fernández Gorgojo, Ramiro García-Galán, Francisco J. Badesa, Antonio Vizan-Idoipe   +6 more
doaj   +2 more sources

Effects on the distortion of Inconel 718 components along a hybrid laser-based additive manufacturing process chain using laser powder bed fusion and laser metal deposition [PDF]

, 2023
385394The combination of laser powder bed fusion (LPBF), known for its geometrical freedom and accuracy, and the nozzle-based laser metal deposition process (LMD), known for its high build-up rates, has great potential to reduce the additive ...
Krohmer, E., Graf, B., Uhlmann, E., Petrat, T., Düchting, J., Rethmeier, M.   +5 more
core   +1 more source

Topology Optimization for additive manufacturing with distortion constraints [PDF]

, 2021
An important cause of failure in powder bed additive manufacturing is the distortion of the part due to thermal shrinkage during printing and the relaxation of residual stresses after its release from the base plate. In this paper, Additive Manufacturing
Ayas, Can, van Keulen, Fred, Ven, Emiel van de, Geijselaers, Hubert, Misiun, Grzegorz, Langelaar, Matthijs, Boogaard, Ton van den, Boogaard, Ton van den; id_orcid   +7 more
core   +3 more sources

Bounds on the Sum-Rate of MIMO Causal Source Coding Systems with Memory under Spatio-Temporal Distortion Constraints

Entropy, 2020
In this paper, we derive lower and upper bounds on the OPTA of a two-user multi-input multi-output (MIMO) causal encoding and causal decoding problem.
Photios A. Stavrou, Jan Østergaard, Mikael Skoglund   +2 more
doaj   +1 more source

Lossy State Communication over Fading Multiple Access Channels

Entropy, 2023
Joint communications and sensing functionalities integrated into the same communication network have become increasingly relevant due to the large bandwidth requirements of next-generation wireless communication systems and the impending spectral ...
Viswanathan Ramachandran
doaj   +1 more source

Spectral Properties of Clipping Noise

Mathematics, 2021
One serious disadvantage of any multicarrier-modulation technique such as orthogonal frequency division multiplexing (OFDM) is its high peak-to-average-power ratio (PAPR) which might lead to signal clipping in several scenarios.
Alexander Frömming, Lars Häring, Andreas Czylwik   +2 more
doaj   +1 more source

Thermo-mechanical analysis of wire and arc additive layer manufacturing process on large multi-layer parts [PDF]

, 2011
Wire and Arc Additive Layer Manufacturing (WAALM) is gaining increasing popularity as the process allows the production of large custom-made metal workpieces with high deposition rates.
Ganguly S, F. Wang, Wang, Fude, Sequeira Almeida, Pedro M., Wang F, J. Mehnen, S. Ganguly, Ganguly, Supriyo, Williams, Stewart W., Ding J, Colegrove, Paul A., Mehnen J, J. Ding, Almeida PMS, Mehnen, Jorn, Colegrove P, P. Colegrove, S. Williams, Ding, Jialuo, Williams S, P.M. Sequeira Almeida   +20 more
core   +1 more source

Towards a comprehensive understanding of distortion in additive manufacturing based on assumption of constraining force [PDF]

, 2021
Additive manufacturing has shown giant potential in advanced manufacturing industry. However, distortion of additive-manufactured parts may interrupt the printing process and decrease manufacturing precision, causing a significant waste of time and money.
Cijun Shuai, Fei Lv, Jianfeng Zhao, Zongjun Tian, Deqiao Xie, Yingdong Song, Huixin Liang, Lida Shen   +7 more
core   +1 more source

Thermo-mechanical analyses for optimized path planning in laser aided additive manufacturing processes

Materials & Design, 2019
Laser deposition strategies can have significant effect on the temperature distribution for multi-bead multi-layered additive manufacturing. Its influence on thermal field will affect the induced residual stress and distortion.
K. Ren, Y. Chew, J.Y.H. Fuh, Y.F. Zhang, G.J. Bi   +4 more
doaj   +1 more source

On maxitive integration [PDF]

, 2013
The Shilkret integral is maxitive (i.e., the integral of a pointwise supremum of functions is the supremum of their integrals), but defined only for nonnegative functions.
Cattaneo, Marco E. G. V.
core   +1 more source