Contents

Russian Engineering Research

Vol. 41, No. 7, 2021

Working Life of Gear with Wear and Misalignment

F. G. Nakhatakyan p. 575  abstract

Influence of the Fuel Distribution in Double Annular Combustors on the Emissions

A. V. Baklanov p. 582  abstract

Restoration of Slide Valves for Lubrication Stations

V. A. Korotkov p. 586  abstract

Influence of Tool Kinematics on the Surface Stress State in the Hardening of Cylindrical Parts

S. A. Zaides and Pham Van Anh p. 588  abstract

Parallel Mechanisms with Flexible Couplings

E. B. Shchelkunov, M. E. Shchelkunova, S. A. Ryabov and A. S. Glinka p. 593  abstract

Surface Layers of Structural and Tool Steels Produced by Laser Alloying with Carbide-Forming Elements and Boron

G. N. Gavrilov, P. L. Zhilin, A. V. Bratukhin, K. V. Razheva, I. E. Illarionov, E. A. Marinin and P. M. Yavtushenko p. 598  abstract

Crack Resistance of Silicon-Carbide Plates in Diamond Grinding

S. G. Bishutin and S. S. Alekhin p. 604  abstract

More Precise Honing of Holes in Stepped Thin-Walled Cylinders

V. A. Ogorodov p. 607  abstract

Moisture Absorption by a Reinforced Polymer Composite (BFRP Rebar)

A. A Gavril’eva, A. K. Kychkin, A. N. Sivtseva and A. A. Vasil’eva p. 612  abstract

Porosity of Reinforced Polymer Composite (BFRP Rebar) Deteriorating in Northern Climates

A. K. Kychkin, G. G. Vinokurov and N. F. Struchkov p. 616  abstract

Stamping of Nonuniform Channels. 3. Forces and Shape Changes in Channel Extrusion. 3.2. Determining the Extrusion Force, Maximum Wall Pressure, and Wall Height

A. L. Vorontsov p. 621  abstract

Impact of the 2020 Pandemic on Russian Aviation

G. A. Kalugina and A. V. Ryapukhin p. 627  abstract

Cluster Policy in a Digital Economy

R. S. Golov, A. G. Palamarchuk, K. V. Anisimov and A. M. Andrianov p. 631  abstract

Industry 4.0 Concepts in the Machine-Tool Industry

A. A. Gribkov, M. S. Morozkin, V. R. Kuptsov, P. M. Pivkin and A. A. Zelenskii p. 634  abstract

Automation of the Assembly and Welding of Large Components for Railroad Freight Cars

E. V. Mitin, S. P. Sul’din and A. E. Mitina p. 636  abstract

Express Calculation of Machining Costs in CAM Software

A. V. Shchekin, I. N. Tribushinin and V. P. Fomin p. 640  abstract

Static and Dynamic Characteristics of Machine Tools with an Adhesive–Mechanical Support System

Yu. V. Maksimov and R. A. Musatov p. 645  abstract

Single-Sided Hobbing Heads Producing Circular Teeth in Cylindrical Gears

D. E. Bochkova, A. A. Malikov and M. N. Bobkov p. 649  abstract

Multicomponent and Multilayer Electrospark Alloying of Airplane Parts

A. V. Koreshkov, A. G. Boitsov, V. V. Kuritsyna and M. V. Siluyanova p. 653  abstract

Formation of Thick Electrospark Coatings with Increased Contact Continuity

S. A. Velichko, I. N. Kravchenko, A. V. Martynov and E. G. Martynova p. 657  abstract

Improving the Wear Resistance of Frictional Pairs with Nanostructured Electrospark Coatings

S. A. Velichko, I. N. Kravchenko, A. V. Martynov and P. V. Chumakov p. 661  abstract

Grinding the Spherical Ends of Roller Blanks

V. A. Prilutskii and V. A. Parfenov p. 665  abstract

Digital Twins and Multifactorial Visualization of Shaping in CNC Plunge-Cut Grinding

A. V. Akintseva, P. P. Pereverzev, S. V. Omel’chenko and A. A. Kopyrkin p. 671  abstract

Simulation Model of a Propulsion System of a Supersonic Aircraft

A. D. Alendar’ and M. V. Siluyanova p. 676  abstract

Trends in the Global Market for Freight Aircraft

M. M. Gyazova and M. V. Siluyanova p. 680  abstract