Developments of Doctor of Technical Sciences, Prof. Oleksandr Fedorovych Salenko in the field of hybrid processes based on the functional approach
- Jet-abrasive dimensional cutting of carbon-carbon composite materials using formed masks (cutting performed from top to bottom)
- Jet-laser cutting with additional cooling of the working zone
- Application of composite masks for microchip cutting
More detailed information can be found at the following link.
A video on our channel about the department’s developments, presented by Doctor of Technical Sciences, Prof. V.B. Strutynskyi.
Automated Processing of Amber on an Avalon Machine
Experimental studies of the modernized Avalon machine (Poland) demonstrate the efficiency of developing a multi-position machine (6–12 positions for simultaneous grinding of 6–12 amber spheres) with parallel operation and computer control based on a modular principle. This approach allows a significant increase in processing productivity with minimal costs and a short payback period. Detailed information can be found in the scientific journal “Technological Complexes”, No. 1 (16), 2019, pp. 49–59 (article by Yu. M. Kuznetsov “Increasing the Productivity of Processing Amber Beads for Jewelry”), Lutsk, LNTU.
Measurement of the Diameter of a Processed Amber Sphere
The results of automated grinding of amber spheres on the modernized Avalon machine (Poland) with computer control indicate high processing accuracy in both shape and size (within 0.02–0.03 mm).
Milling on a CNC Machine with Parallel Kinematics
The same pyramidal-configuration machine, model SFVPK-4, developed at the department of KPI and brought to an operational state with the capability of performing drilling and milling operations, with the participation of postgraduate student of the Department of Machine Tools and Machines of KPI, P. V. Keba. After completing postgraduate studies, he worked at KhNTU, where he conducted theoretical and experimental dynamic studies (not yet defended at that time).
Drilling on a CNC Machine with Parallel Kinematics
The pyramidal-configuration machine, model SFVPK-4, was developed at the department. Static studies on this incomplete machine were carried out by postgraduate student V. B. Firanskyi, who successfully defended his PhD dissertation at KPI in 2011. By agreement between KPI and KhNTU within the framework of a cooperation contract, the machine was transferred to KhNTU (Kherson). There, it was upgraded with a cross-slide from a CNC lathe and equipped with a computer control system with the participation of postgraduate student of the Department of Machine Tools and Machines of KPI, P. V. Keba, who conducted theoretical and experimental dynamic studies.
Multi-Purpose Lathe with a Hexaglide-Type Parallel Kinematic System
Created on the basis of a traditional CNC lathe, in which the cross-slide was removed and replaced with a hexaglide-type tool system mounted on six rods of constant length. Active participation in the project was taken by postgraduate student of the department from Kherson, M. I. Podolskyi, who successfully defended his PhD dissertation in 2014 at KNTU (Kirovohrad).
Mobile Robot Machine without Mechanical Kinematic Chains
These machines, as a result of directed genetic synthesis, belong to future generations using electromagnetic fields instead of mechanical transmissions and are part of a flexible automated workshop (or factory). They are described by genetic models that allow the creation of technological equipment for various purposes without foundations. Detailed information can be found in the article by Yu. N. Kuznetsov “The Future of Machine Tool Building – the Core of Mechanical Engineering”, journal “Bulletin of BRU, Mechanical Engineering Section”, No. 2 (55), 2017, pp. 25–35.
Pyramidal-Configuration Machine with Parallel-Structure Mechanisms
According to the cooperation agreement between NTUU “KPI” and KhNTU, the machine was transferred to Kherson for upgrading and completion of the PhD dissertation of postgraduate student P. V. Keba. Currently, various R&D projects commissioned by enterprises are being carried out on this machine.
Wedge-Shaped Configuration Machine
This is an example of implementing the proposed concept of creating machines, robots, and other next-generation technological equipment with parallel-structure mechanisms, in which constant-length rods (biglides, triglides, hexaglides, etc.) are used instead of controllable variable-length rods (bipods, tripods, hexapods, etc.).
Testing of a Linear Motion Module
This module is multifunctional and provides the following capabilities:
- controlled coordinate motion from a computer or CNC system;
- a load-bearing frame-type structure that significantly reduces the weight characteristics of equipment, including machine tools;
- a base for connecting and mounting moving elements of equipment, such as a platform with an actuator (spindle unit) or a gripper for manipulation in robotic applications.
Desktop Machines and Equipment of a New Generation Based on a Modular Principle
Under conditions of limited funding of Ukrainian technical higher education institutions, it is advisable to create educational and research laboratories with compact equipment (desktop machines, robots, 3D printers, and other machines with various actuators composed of a limited number of modules). Such equipment allows students to quickly assemble a structure, develop a computer processing program, perform machining, and analyze the quality of the results.
Five-Axis Machine with Parallel Kinematics
Depending on the type of actuator mounted on the moving platform, this machine can function as a machine tool, a robot, or a coordinate measuring machine, as shown in the video. Protected by a Ukrainian patent.
Desktop Gantry-Type Milling Machine, Model CNC 250
The presented machine was developed and manufactured by our graduate, PhD in Engineering, Oleksandr Stepanenko. This machine was exhibited at an international exhibition in Kyiv and was purchased for industrial use by one of the visitors. Currently, O. Stepanenko, together with his wife (also a graduate of our department), successfully works in Canada.
Presentation by Master’s Student A. Solntsev at the Hannover Fair, Germany
The presented 3D printer based on a triglide mechanism was developed and manufactured at the department (scientific supervisor: Prof. Yu. M. Kuznetsov).