Features of Coating Deposition Inside a Narrow Cavity in Octafluorocyclobutane Discharge Plasma

2021 ◽  
Vol 55 (5) ◽  
pp. 414-417
Author(s):  
E. M. Tolstopyatov ◽  
P. N. Grakovich ◽  
L. F. Ivanov ◽  
V. A. Shelestova ◽  
V. A. Stratanovich
1994 ◽  
Vol 3 (4-6) ◽  
pp. 525-527 ◽  
Author(s):  
I.I. Aksenov ◽  
V.V. Vasil'ev ◽  
V.E. Strel'nitskij ◽  
V.M. Shulaev ◽  
D.Yu. Zaleskij

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 465
Author(s):  
Alexander Metel ◽  
Yury Melnik ◽  
Enver Mustafaev ◽  
Ilya Minin ◽  
Petr Pivkin

We present a new method for coating deposition on micro cutters without an increase in their cutting edges radii caused by the deposition. For this purpose, the cutting edges are sharpened before the coating deposition with a concentrated beam of fast argon atoms. The sharpening decreases the initial radius and, hence, limits its value after the coating deposition. The concentrated beam of fast argon atoms is generated using an immersed in the gas discharge plasma concave grid under a negative high voltage. Ions accelerated from the plasma by the grid pass through the grid holes and are concentrated in the focal point of the grid. As a result of the charge exchange in the space charge sheaths of the grid, they are transformed into fast atoms. A uniform sputtering by the fast atoms of the micro-cutter surface reduces the radius of its cutting edge.


Technologies ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 27
Author(s):  
Alexander S. Metel ◽  
Sergey N. Grigoriev ◽  
Tatiana V. Tarasova ◽  
Yury A. Melnik ◽  
Marina A. Volosova ◽  
...  

Additive manufacturing has evolved over the past decades into a technology that provides freedom of design through the ability to produce complex-shaped solid structures, reducing the operational time and material volumes in manufacturing significantly. However, the surface of parts manufactured by the additive method remains now extremely rough. The current trend of expanding the industrial application of additive manufacturing is researching surface roughness and finishing. Moreover, the limited choice of materials suitable for additive manufacturing does not satisfy the diverse design requirements, necessitating additional coatings deposition. Requirements for surface treatment and coating deposition technology depend on the intended use of the parts, their material, and technology. In most cases, they cannot be determined based on existing knowledge and experience. It determines the scientific relevance of the analytical research and development of scientific and technological principles of finishing parts obtained by laser additive manufacturing and functional coating deposition. There is a scientific novelty of analytical research that proposes gas-discharge plasma processing for finishing laser additive manufactured parts and technological principles development including three processing stages—explosive ablation, polishing with a concentrated beam of fast neutral argon atoms, and coating deposition—for the first time.


1997 ◽  
Vol 7 (5) ◽  
pp. 1039-1044
Author(s):  
N. N. Lebedeva ◽  
V. I. Orbukh ◽  
B. G. Salamov ◽  
M. Özer ◽  
K. Çolakoǧlu ◽  
...  

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-261-C7-262
Author(s):  
R. Winkler ◽  
J. Wilhelm ◽  
A. A. Ivanov ◽  
V.V. Starykh
Keyword(s):  

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-873-C7-874
Author(s):  
Yu. I. Filenko ◽  
B. M. Stepanov ◽  
L. S. Ushakov

1996 ◽  
Vol 166 (11) ◽  
pp. 1197 ◽  
Author(s):  
Aleksandr V. Eletskii ◽  
Boris M. Smirnov

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