Results 91 to 100 of about 234,352 (292)

Fabrication of foam metal in directed energy deposition applying titanium hydride

Nihon Kikai Gakkai ronbunshu, 2019
Directed Energy Deposition (DED), which is one of the Additive Manufacturing (AM) processes, can deposit metallic production efficiently by irradiating a high-power laser beam on a baseplate and supplying material powder simultaneously. DED has a problem
Takashi MATSUMOTO, Ryo KOIKE, Yasuhiro KAKINUMA, Yohei ODA   +3 more
doaj   +1 more source

Stellite coating deposited by directED energy deposition [PDF]

METAL Conference Proeedings, 2020
Jaroslav Vavřík, Taťána Hrbáčková, Pavel Salvetr, Michal Brázda   +3 more
openaire   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Fast ignition of fusion targets by laser-driven electrons

, 2008
We present hybrid PIC simulations of fast electron transport and energy deposition in pre-compressed fusion targets, taking full account of collective magnetic effects and the hydrodynamic response of the background plasma.
Bell A R, Honrubia J J, Honrubia J J, Honrubia J J, Huba J D, J J Honrubia, J Meyer-ter-Vehn   +6 more
core   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Part-agnostic ultrasonic melt pool vibration in wire-laser directed energy deposition

Materials & Design
Ultrasonic vibration assistance has proven itself as a useful tool in homogenizing microstructures and improving structural properties in localized fusion processes (welding, additive manufacturing, etc.).
Jakob D. Hamilton, P. Weisbeck, J. Trimberger, Irtaza Razvi, David Trauernicht, Denis Cormier, Iris V. Rivero   +6 more
doaj   +1 more source

Working distance passive stability in laser directed energy deposition additive manufacturing

Materials & Design, 2019
In Laser Directed Energy Deposition (L-DED), closed loop control systems can be used to enhance system reliability; however, modulating controlled parameters can have unintended secondary morphological and microstructural effects.
James C. Haley, Baolong Zheng, Umberto Scipioni Bertoli, Alexander D. Dupuy, Julie M. Schoenung, Enrique J. Lavernia   +5 more
doaj   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Thermal modeling techniques designed for high-speed directed energy deposition coatings

Journal of Advanced Mechanical Design, Systems, and Manufacturing
High-speed directed energy deposition (DED) offers advantages such as efficiency, thin coating layers, and reduced heat-affected zones, making it ideal for repairs and coating on existing parts across various industries.
Shiho TAKEMURA, Yuichiro MIYATA, Yoko HIRONO, Yasuhiro KAKINUMA   +3 more
doaj   +1 more source

Loss of control in pattern-directed nucleation: a theoretical study

, 2008
The properties of template-directed nucleation are studied close to the transition where full nucleation control is lost and additional nucleation occurs beyond the pre-patterned regions.
Andreas Heuer, E. Anderson, Felix Kalischewski, H. Brune, Jia Zhu, T. Michely, W. Dieterich   +6 more
core   +1 more source