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An in-situ measurement device combining contact probe and capacitive displacement sensor is developed. An aspherical measurement and compensation machining software is also developed. The single point diamond ultra precision cutting experiments for C3604
Liang ZHANG +6 more
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High-Efficiency Polarization Multiplexing Metalenses [PDF]
The polarization multiplexing technique is a well-established method that improves the communication capacity of an optical system. In this paper, we designed orthogonal linear and circular polarization multiplexing metalens using a library of rectangle TiO2 nanostructures.
Xueping Sun +8 more
openaire +4 more sources
Segmented Four-Element Photodiodes in a Three-Dimensional Laser Beam Angle Measurement
Based on the registration of two laser beam projections, a method for measuring the angular deviation of a laser beam from its initial position in three-dimensional space is proposed and experimentally demonstrated.
Stanislav Konov +4 more
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On Defect Minimization Caused by Oxide Phase Formation in Laser Powder Bed Fusion
The article is devoted to the compressive review of the defects observed in the products of the machinery usage made mainly of anti-corrosion steels of the martensite-austenite group, difficult to process materials such as pure titanium, nickel, and ...
Anna A. Okunkova +6 more
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The possibility of increasing the durability of steel pins working against bronze bushings through plasma–electrolytic nitrocarburizing of the surface of medium carbon steel is shown.
Anatoly Borisov +6 more
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The structure and physical–mechanical properties of products made from powders of corrosion-resistant steel 12X18H10T by the laser-beam powder bed fusion (LB-PBF) and subsequent ion-plasma nitriding in the work were investigated.
Alexander Metel +5 more
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Beam Shaping in Laser Powder Bed Fusion: Péclet Number and Dynamic Simulation
A uniform distribution of power density (energy flux) in a stationary laser beam leads to a decrease in the overheating of the material in the center of the laser beam spot during laser powder bed fusion and a decrease in material losses due to its ...
Sergey N. Grigoriev +6 more
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Microtexturing of TiZrN-Coated Si3N4 cutting inserts for machining nickel alloy [PDF]
Insulating cutting ceramics exhibit outstanding mechanical and thermal properties but have electrical conductivity below the percolation threshold. It does not allow sophisticated shapes to be obtained by diamond grinding and polishing.
Volosova Marina A. +4 more
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Surface Hardening of Machine Parts Using Nitriding and TiN Coating Deposition in Glow Discharge
Surface hardening of machine parts substantially improves their performance. The best results are obtained when combined hardening consists of surface nitriding and subsequent deposition of hard coatings.
Alexander Metel +4 more
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Light-based 3D bioprinting is now employed widely to fabricate geometrically complex constructs for various biomedical applications. However, the inherent light scattering defect creates significant challenges in patterning dilute hydrogels to form high ...
Ning He +11 more
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