33 Result(s)
within
A. M. Orishich
English
Classical and Continuum Physics
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Article
EFFECT OF LASER IMPACT PARAMETERS ON THE FORMATION OF A POOL OF THE MOLTEN B4C — Ti–6Al–4V CERMET MIXTURE
Results of a series of experiments aimed at studying laser cladding of individual tracks with the use of the B4C–Ti–6Al–4V cermet powder mixture are reported. The influence of laser cladding parameters (radiation...
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Article
INFLUENCE OF HEAT TREATMENT OF LASER-WELDED JOINTS OF ALUMINUM-LITHIUM ALLOYS ON PLASTIC FLOW INSTABILITY
The experimentally observed evolution of unstable plastic flow of laser-welded specimens of Al–6Mg–2Li, Al–1.6Cu–1.1Mg–1.8Li, and Al–3.4Cu–0.66Mg–1.5Li aluminum–lithium alloys under different heat treatment co...
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Article
CREATION OF A HETEROGENEOUS MATERIAL BASED ON THE TITANIUM ALLOY AND TITANIUM BORIDE BY SELECTIVE LASER MELTING
Results of theoretical and experimental investigations of physical and mechanical properties of a heterogeneous material based on the TiB ceramics and Ti–6Al–4V metallic alloy obtained by means of selective la...
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Article
LASER WELDING OF DISSIMILAR MATERIALS BASED ON THERMALLY HARDENED ALUMINUM ALLOYS
Results of an experimental study of the strength characteristics and structural-phase composition of a nondetachable connection of dissimilar materials based on thermally hardened aluminum alloys D16T of the A...
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Article
CREATION OF A FUNCTIONALLY GRADIENT MATERIAL BY THE SELECTIVE LASER MELTING METHOD
The paper presents the results of an experimental study of the microstructure and microhardness of a functionally gradient material fabricated from 316L stainless steel and tungsten carbide (WC) ceramic partic...
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Article
Laser Welding of Dissimilar Materials Based on VT20 Titanium and V-1461 Aluminum Alloys
This paper describes the experimental study of strength characteristics and the microstructure of a permanent joint of dissimilar materials (VT20 titanium alloy and V-1461 aluminum alloy), obtained by laser bu...
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Article
Influence of Heat Treatment on the Fracture of a Welded Joint of an Al-Cu-Li Aircraft Alloy at Different Temperatures
Results of an experimental study of how temperature affects the fracture of laser welded joints of an Al-Cu-Li aircraft aluminum alloy are presented. A comparison is made of the deformation and fracture of wel...
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Article
Similarity Laws in Laser Cladding of Cermet Coatings
The influence of the laser beam parameters (power, motion velocity, and focus position) on the characteristics of the track being formed (size, elemental composition, and microhardness) is studied. If the diff...
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Article
Temperature Effect on the Fracture of Laser Welded Joints of Aviation Aluminum Alloys
This paper describes an experimental study of a temperature effect on the fracture of laser welded joints of Mg- and Cu-containing aviation aluminum alloys. The fracture of alloys and their welded joints under...
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Article
Effect of Heat Treatment on Mechanical and Microstructural Properties of the Welded Joint of the Al–Mg–Li Alloy Obtained by Laser Welding
Laser welding of the 1420 alloy of the Al–Mg–Li system is experimentally studied for the purpose of its optimization. Various modes of heat treatment of fixed joints obtained by means of laser welding are cons...
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Article
Effect of Mg and Cu on mechanical properties of high-strength welded joints of aluminum alloys obtained by laser welding
Results of experimental investigations of welded joints of high-strength aluminum–lithium alloys of the Al–Cu–Li and Al–Mg–Li systems are reported. The welded joints are obtained by means of laser welding and ...
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Article
Creation of heterogeneous materials on the basis of B4C and Ni powders by the method of cold spraying with subsequent layer-by-layer laser treatment
A method is proposed for creating principally new functionally graded heterogeneous materials on the basis of B4C ceramic powders with different mass fractions in the original mixture and plastic metallic additiv...
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Article
Energy balance in high-quality cutting of steel by fiber and CO2 lasers
The energy balance of laser cutting of low-carbon and stainless steel sheets with the minimum roughness of the cut surface is experimentally studied. Experimental data obtained in wide ranges of cutting parame...
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Article
Development of a technology for laser welding of the 1424 aluminum alloy with a high strength of the welded joint
Results of an experimental study of properties of joints obtained by using different regimes of laser welding of the 1424 alloy (Al–Mg–Li) are reported. The strength and structure of the welded joints are dete...
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Article
Mechanical characteristics of high-quality laser cutting of steel by fiber and CO2 lasers
The quality of cutting of low-carbon and stainless steel by beams of fiber and CO2 lasers with oxygen or nitrogen being used as a process gas is compared. The cut surface roughness for sheets from 3 to 10 mm thic...
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Article
Laser welding of stainless steel with a titanium alloy with the use of a multilayer insert obtained in an explosion
CO2-laser welding of 12Kh18N10T stainless steel and a VT1-0 titanium alloy with the use of a composite insert obtained by means of explosive welding of four sheets (VT1-0 titanium, high-purity tantalum, M1 copper...
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Article
Ultimate energy characteristics of a mechanically Q-switched CO2 LASER
It has been experimentally shown that mechanical Q-switching in CO2 lasers with convective cooling and a self-filtering resonator can be used to provide stable generation of repetitively pulsed radiation at repet...
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Article
Energy conditions of gas laser cutting of thick steel sheets
Results of experimental determination of the energy balance in oxygen laser cutting of sheets 5–16 mm thick by a CO 2 laser in the operation regime of high-quality cutting with ...
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Article
Specific features of laser cutting of steel sheets and monitoring of sample quality after laser influence
An automated laser system with an 8-kW quantum generator with the beam quality not worse than that of a single-mode laser is described. The possibility of using such a system in procurement production for cutting...
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Article
Modeling of the Front of Melting and Destruction of a Melt Film During Gas‐Laser Cutting of Metals
The products of laser cutting of metals on an automated laser setup are investigated. Results of model experiments are presented, where soft wax was used instead of metal transforming into the melt; soft wax f...
