Gasless combustion of metal powder mixtures

1976 ◽  
Vol 11 (3) ◽  
pp. 293-300 ◽  
Author(s):  
Yu. S. Naiborodenko ◽  
V. I. Itin
Keyword(s):  
Metal Powder ◽  
Gasless Combustion ◽  
Powder Mixtures

Study of particularities of metal powder mixtures injection molding

2018 ◽  
Author(s):  
М.В. Тверской ◽  
◽  
А.А. Хилкова ◽  
Д.Э. Хилков ◽  
◽  
...  
Keyword(s):  
Injection Molding ◽  
Metal Powder ◽  
Powder Mixtures

Self ignition of layers of metal powder mixtures

2014 ◽  
Vol 254 ◽  
pp. 160-169 ◽  
Author(s):  
Olivier Dufaud ◽  
David Bideau ◽  
Fabienne Le Guyadec ◽  
Jean-Pierre Corriou ◽  
Laurent Perrin ◽  
...  
Keyword(s):  
Metal Powder ◽  
Powder Mixtures

Simulation of Gasless Combustion of Mechanically Activated Solid Powder Mixtures

2010 ◽  
Vol 63 ◽  
pp. 213-221 ◽  
Author(s):  
Sergey Rashkovskiy
Keyword(s):  
Experimental Data ◽  
High Speed ◽  
Gasless Combustion ◽  
Digital Recording ◽  
Powder Mixtures ◽  
Second Stage ◽  
The Third ◽  
Third Stage ◽  
Three Stages ◽  
Ignition And Combustion

The direct 3D method of numerical simulation of gasless combustion of mechanically activated solid powder mixtures is developed. The method under consideration falls into three stages. On the first stage, a simulation of mixture structure is performed. An analysis of the structure obtained in simulations is carried out. On the second stage, the thermal conductivity of solid powder mixture is calculated. On the third stage of simulation, the ignition and combustion of each particle of the mixture is considered with taking into account of heat exchange between contacting particles. The results of numerical simulations are represented dynamically and compared with the experimental data, obtained by high-speed digital recording of mechanically activated SHS systems combustion.

Gasless combustion in Ti-xSi powder mixtures

2009 ◽  
Vol 18 (4) ◽  
pp. 252-262
Author(s):  
F. Baras ◽  
A. S. Rogachev
Keyword(s):  
Gasless Combustion ◽  
Powder Mixtures

The Development of New Materials and Modes of Casting Metal Powder Mixtures (MIM Technology)

2019 ◽  
Vol 945 ◽  
pp. 538-542 ◽  
Author(s):  
A.Yu. Korotchenko ◽  
D.E. Khilkov ◽  
M.V. Tverskoy
Keyword(s):  
Shear Rate ◽  
Metal Powder ◽  
Nonlinear Dependence ◽  
Technological Properties ◽  
New Materials ◽  
Powder Mixtures ◽  
Flow Channels ◽  
The Cost ◽  
Mim Technology

In the present work, to reduce the cost of production of the parts with MIM technology, proposed to use a new metal powder mixture (feedstock are presented) with the increased size of the powder to 50 microns. New feedstock are presented recommended for use in the manufacture of parts with a wall thickness of 5 mm. Shows the main physical and technological properties of new metal powder mix (feedstock) 40ХМА of steel intended for the manufacture of parts via MIM technology. Given the results of determination of granulometric composition and particle shape. The obtained values of tensile strength, hardness and roughness. The results of determining the dependence of viscosity on shear rate. For simulation of rheological properties of selected elastic-visco-plastic model of Bingham type with nonlinear dependence of viscosity on shear rate and temperature. The example of the calculation of feedstock fill the cavity of the mold. The analysis of defects in green part, associated with an irregular velocity field in the flow channels feedstock form.

scholarly journals Multi-Material Additive Manufacturing – Recycling of binary Metal Powder Mixtures by Screening

Procedia CIRP ◽  
2020 ◽  
Vol 93 ◽  
pp. 50-55
Author(s):  
Max Horn ◽  
Lena Prestel ◽  
Matthias Schmitt ◽  
Maximilian Binder ◽  
Georg Schlick ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Metal Powder ◽  
Powder Mixtures ◽  
Binary Metal

An Experimental Investigation of Heat Affected Zone Formation and Morphology Development During Laser Processing of Metal Powder Mixtures

2000 ◽  
Vol 123 (3) ◽  
pp. 586-592 ◽  
Author(s):  
C. W. Buckley ◽  
T. L. Bergman
Keyword(s):  
Metal Powder ◽  
Laser Processing ◽  
Strong Dependence ◽  
Coupling Efficiency ◽  
Beam Radius ◽  
System Behavior ◽  
Powder Mixtures ◽  
Zone Formation ◽  
High Melting Temperature ◽  
Morphology Development

Laser-induced melting and subsequent resolidification of a metal powder mixture consisting of low and high melting temperature materials was experimentally examined. First, the onset of melting for the low melting point material was determined and correlated with dimensionless parameters. Next, the morphologies of the heat affected zones were categorized and finally, a process map for use in rapid prototyping technology was developed. The results indicate a strong dependence of the system behavior on the laser-material coupling efficiency and in turn, the ratio of the laser beam radius to particle size.

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