Contents

Russian Engineering Research

Vol. 41, No. 4, 2021

Rigidity of a Multilayer Piezoelectric Actuator for the Nano and Micro Range

S. M. Afonin p. 285  abstract

Bench Tests for Chipping Hammers

V. S. Vanaev p. 289  abstract

Experimental Study and 3D Modeling of Working Process of Hydrogen Engine Running on Lean Fuel Mixture

R. Z. Kavtaradze, Ch. Rongrong, Zh. Citian, S. Baigan, W. Yichun and G. Zh. Sakhvadze p. 296  abstract

Analysis of Cyclic Automatic Systems in Programming Multifunctional Equipment for CNC and PLC Systems

Yu. N. Bugrov and E. V. Kurnasov p. 302  abstract

Stamping of Nonuniform Channels. 1. Comparison of Methods of Channel Production

A. L. Vorontsov p. 308  abstract

Models of Manufacturing Processes Based on Set Theory

S. Yu. Kalyakulin, E. V. Mitin and S. P. Sul’din p. 312  abstract

Titanium-Alloy Metal Matrix Composites Produced by Low-Temperature Superplastic Pressure Welding

M. Kh. Mukhametrakhimov p. 315  abstract

Diagnostics of 3D Printing on a CNC Machine by Machine Learning

Yu. G. Kabaldin, D. A. Shatagin, M. S. Anosov, P. V. Kolchin and A. V. Kiselev p. 320  abstract

Multifractal Analysis and Magnetic Properties of Magnetically Hard Fe–Cr–Co Alloy Produced by Selective Laser Melting

A. S. Zhukov, A. V. Kamynin, I. S. Gavrikov, B. K. Barakhtin and P. A. Kuznetsov p. 325  abstract

Improving Lubricants by Adding Inorganic Polymers

I. V. Kolesnikov, M. A. Savenkova, A. P. Sychev, S. F. Ermakov, A. I. Koroleva, S. A. Volyanik and V. V. Avilov p. 329  abstract

Turning of Caprolon with an Influx of Water-Repellent Emulsion

O. Yu. Erenkov, O. V. Anikeeva, A. G. Ivakhnenko and A. V. Oleinik p. 333  abstract

Optimization of High-Tech Production by Means of Smart Systems

A. A. Chursin p. 337  abstract

State Industrial Policy and the Machine-Tool Industry

A. A. Gribkov, P. M. Pivkin and A. A. Zelenskii p. 342  abstract

Analysis of Subject Areas in Preproduction and Shop-Floor Planning

A. V. Shchekin and I. N. Tribushinin p. 347  abstract

Static Analysis of Cutting Inserts in a Smoothing Tool by Simulation

E. V. Mitin, S. P. Sul’din and A. E. Mitina p. 353  abstract

Digital Twins in the Design of Tools for Friction Stir Welding

D. N. Kuritsyn, V. V. Kuritsyna and M. V. Siluyanova p. 357  abstract

Optimization of Labyrinth Seals in Gas-Turbine Engines

I. V. Androsovich and M. V. Siluyanova p. 360  abstract

Selection of Representative Parts in Production Design

B. M. Bazrov and N. A. Rodionova p. 363  abstract

Machining the Spherical Ends of Solids of Revolution. 1. Classification of Basing Methods

V. A. Prilutskii and V. A. Parfenov p. 367  abstract

Machining the Spherical Ends of Solids of Revolution. 2. Search for Machining Methods

V. A. Prilutskii and V. A. Parfenov p. 370  abstract

Using IGS Files in Formalized Selection of Technological Bases for Prismatic Components with Surface Constraints

E. V. Mitin, S. P. Sul’din and A. E. Mitina p. 374  abstract

Value Stream Maps in Clock Production

N. V. Syreyshchikova, D. Yu. Pimenov, A. P. Markopoulos and L. Moldovan p. 378  abstract

Hybrid Model for Calculating Quality Costs

N. V. Syreyshchikova, D. Yu. Pimenov, I. A. Kulygina and L. Moldovan p. 382  abstract