Results 101 to 110 of about 21,275 (282)

Monitoring melt pool dynamics using multi-detector electron optical imaging

Materials & Design
Experimental observation of the dynamic melt pool evolution in advanced powder bed fusion processes is a challenging endeavor. The main challenge is that the small melt pool dimensions and its fast dynamic evolution require high spatial and temporal ...
Jakob Renner, Erik Granhed, Neeraj Vaswade, Anders Snis, Carolin Körner   +4 more
doaj   +1 more source

Assumption of constraining force to explain distortion in laser additive manufacturing [PDF]

, 2018
Distortion is a common but unrevealed problem in metal additive manufacturing, due to the rapid melting in metallurgy and the intricate thermal-mechanical processes involved. We explain the distortion mechanism and major influencing factors by assumption
Ahsan, Muhammad Naveen, Liang, Huixin, Shen, Lida, Tian, Zongjun, Wang, Changjiang, Xiao, Meng, Xie, Deqiao, Zhao, Jianfeng   +7 more
core   +1 more source

A Janus‐Like Bio‐Inspired Strategy for 3D‐Printed Bimetallic Metamaterials with Excellent Thermal‐Protection and Load Bearing Capacity

Advanced Science, EarlyView.
A Janus‐like bio‐inspired strategy is proposed for integrally 3D‐printed bimetallic metamaterials. Inspired by shell bilayers, a heat‐resistant AlSiFeMnNiMg alloy and a SiC‐reinforced AlSi10Mg with different SiC volume fractions are arranged as an architected pair.
Zhicheng Dong, Wei Cheng, Yu He, Ben Jia, Xiaopeng Wan, Heyuan Huang   +5 more
wiley   +1 more source

Leveraging Digital Advanced Manufacturing to Enable Polymer Electrolyte Fuel Cells With Ultrahigh Gravimetric Power Density

Advanced Energy Materials, EarlyView.
This study employs digital advanced manufacturing to develop lightweight, compact porous distributors as alternatives to conventional bipolar plates in PEM fuel cells. A graphene‐coated nickel foam achieves a power density of 1.52 W cm−2, while titanium‐based designs deliver lightweight solutions: an LPBF‐fabricated Gyroid lattice reaches 1.36 W cm−2 ...
Hadi Heidary, Vahid Nasrollahi, Daniel Wilmot, Jacob Bracegirdle‐Morais, Sophie C. Cox, Stefan Dimov, Moataz M. Attallah, Ahmad El‐kharouf, Sara Walker, Robert Steinberger‐Wilckens   +9 more
wiley   +1 more source

Titanium Additive Manufacturing with Powder Bed Fusion: A Bibliometric Perspective

Applied Sciences
Titanium additive manufacturing using powder bed fusion technologies has seen notable growth since 2015, particularly in high-performance sectors such as aerospace, biomedical, and automotive industries.
Antonio del Bosque, Pablo Fernández-Arias, Diego Vergara   +2 more
doaj   +1 more source

Rapid Process Parameter Development for SS316L on the Freemelt ONE Open Architecture Electron Beam Powder Bed Fusion Machine [PDF]

This parameter development study for the electron beam powder bed fusion process was conducted by graduate students as part of a 4-week final project in a semester-long additive manufacturing laboratory class (24-633/27-701/39-603) at Carnegie Mellon ...
Bostan, Berkay, Desai, Shlok, Huang, Yanen, Ju, Daniel, Miner, Justin P., Narra, Sneha Prabha, Schlingemann, Diederik, Templeton, William Frieden, Treaster, Dylan   +8 more
core   +2 more sources

Machine learning-enabled real-time anomaly detection for electron beam powder bed fusion additive manufacturing

Journal of Intelligent Manufacturing
Despite the many advantages and increasing adoption of Electron Beam Powder Bed Fusion (PBF-EB) additive manufacturing by industry, current PBF-EB systems remain largely unstable and prone to unpredictable anomalous behaviours.
Davide Cannizzaro, Paolo Antonioni, Francesco Ponzio, M. Galati, Edoardo Patti, Santa Di Cataldo   +5 more
semanticscholar   +1 more source

Beyond Imperfect Match: Silicon/Graphite Hybrid Anodes for High‐Energy–Density Lithium‐Ion Batteries

Advanced Energy Materials, EarlyView.
Silicon/graphite (Si/Gr) hybrid anodes are limited by Si's large volume change and mismatch with Gr. This review offers mechanistic insights into imperfectly matched Si/Gr hybrid anodes, elucidating heterogeneous lithiation behavior and interfacial failure pathways, and thereby informing the design of durable, high‐energy–density lithium‐ion batteries.
Jing Li, Karol Viviana Mejía‐Centeno, Malik Dilshad Khan, Guifang Zeng, Lijie Ci, Andreu Cabot, Qing Sun   +6 more
wiley   +1 more source

A review of the current state-of-the-art on in situ monitoring in electron beam powder bed fusion

Progress in Additive Manufacturing
The industrial development of electron beam powder bed fusion (PBF-EB) is relatively younger and much more limited in terms of global widespread and revenues compared to laser powder bed fusion (PBF-L).
M. Grasso, B. Colosimo
semanticscholar   +1 more source

Real‐time fault detection in multicomponent nuclear‐waste slurries through data fusion of spectroscopic sensors

AIChE Journal, EarlyView.
Abstract Three instruments–Raman spectroscopy, attenuated total reflectance–Fourier transform infrared spectroscopy, and focused beam reflectance measurement–were used to detect sensor faults, mixing faults, and unanticipated chemistry in a system of multicomponent slurries.
Steven H. Crouse, Ronald W. Rousseau, Martha A. Grover   +2 more
wiley   +1 more source