Results 71 to 80 of about 249,617 (307)

Effect of Feed Metal Flow Rate on Low-cost Plasma Atomizer for Fabricating 316L Stainless Steel Powder

open access: yesInternational Journal of Technology, 2019
The low-cost plasma atomizer in the present study successfully synthesized stainless steel spherical powder using an energy source of less than 3 kVA.
Dharmanto   +2 more
doaj   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat   +7 more
wiley   +1 more source

Wall-slip velocity as a quantitative measure of powder-binder separation during powder injection moulding [PDF]

open access: yes, 2015
This paper tends to point out the specific features of PIM compounds which should be taken into account in their rheological characterization as a necessary approach to optimize moulding step of the process.
Marcaníková, Lucie   +3 more
core  

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

Modelling of flowability measurement of cohesive powders using small quantities [PDF]

open access: yes, 2013
The characterisation of cohesive powders for flowability is often required for reliable design and consistent operation of powder processes. This is commonly achieved by the unconfined compression test or shear test, but these techniques require a ...
Pasha, Massih
core  

Introduction of the energy to break an avalanche as a promising parameter for powder flowability prediction

open access: yes, 2020
Dynamic avalanche testing is a newer method useful even with cohesive powder samples. To evaluate flow properties of pharmaceutical powder excipients, break energy (BE) is introduced as a new promising avalanche parameter.
Kuentz, Martin, Trpělková, Žofie
core   +1 more source

Working distance passive stability in laser directed energy deposition additive manufacturing

open access: yesMaterials & 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   +5 more
doaj   +1 more source

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour   +5 more
wiley   +1 more source

The Sevilla Powder Tester: A Tool for Characterizing the Physical Properties of Fine Cohesive Powders at Very Small Consolidations

open access: yes, 2004
We present a fluidized bed apparatus that enables us to test the bulk mechanical properties such as the yield stresses and compressibility of fine cohesive powders.
Valverde Millán, José Manuel   +2 more
core   +1 more source

Influence of high powder flow dynamics on the efficiency of laser-directed energy deposition

open access: yesMaterials & Design
The behavior of powder streams under high-flow conditions remains not fully explored, despite its critical importance for enhancing productivity in modern laser-directed energy deposition (L-DED) processes.
Hong Seok Kim, Sang Hu Park
doaj   +1 more source

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