Aleksey Drobotov

Aleksey Drobotov
Volgograd State Technical University · Automation of Production Process

Doctor of Engineering

About

25
Publications
1,778
Reads
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45
Citations
Introduction
additive manufacturing, 3D printing

Publications

Publications (25)
Article
Additive methods of producing polymer products are developing and being introduced into industry at a high rate. At the same time, the requirements for products obtained using these technologies are increasing, which, in turn, leads to modernization of equipment and development of methods and devices for their implementation. The paper considers va...
Article
To automatic control the FDM 3D-printer’s nozzle wear during printing, a device has been proposed for contractually measuring the actual nozzle diameter in the range from 0.2 mm to 1.2 mm.
Article
The main advantages of additive technologies in the production of small pumps are considered. The optimized pump design, adapted for 3D-printing, is proposed.
Article
The problem of the complexity and duration of preparing models for 3D-printing is considered in order to simplify and accelerate this time-consuming process. A micro-service system that generates a G-code at the user's request, features of working with 3D-model formats and their transformation are described.
Article
Full-text available
The article discusses the scope of screw extruders, the design features of screw-type extruders, the principle of operation and the main geometric parameters of the screw. The design of a screw-type micro-feeder is proposed, which will be applicable for FDM/FFF 3D printing. The principle of operation, design and applications of a screw-type micro-f...
Article
Full-text available
The problem of the duration of the preparation of models for 3D printing is considered, in order to reduce the complexity of the process of preparing the model for production at additive plants and the production itself. Connection and data exchange via socket between the server and the CuraEngine engine are described. The results of the duration o...
Article
Full-text available
The features of using a two-axis rotary table and a six-axis industrial robot to increase the efficiency of additive manufacturing are considered. Methods and algorithms of joint control of devices are proposed. Synchronization of the industrial robot control system with third-party devices for two-way transmission of information without time delay...
Article
Full-text available
The problem of the duration of the preparation of models for 3D printing is considered, in order to reduce the complexity of the process of preparing the model for production at additive plants and the production itself. The proposed structure of the software is described, including a website, a database for a catalog of adaptable models and servic...
Article
Full-text available
One of the key challenges in additive manufacturing of plastic goods using the Fused Filament Fabrication (FFF) technology is to ensure their strength. The low strength of polymer materials and the distinct anisotropy of their mechanical properties limit the use of 3D printing as an alternative to the traditional small-scale production technologies...
Chapter
The paper proposes an improved discrete slicer algorithm for preparing a 3D model for printing on multi-axis printers, as well as approaches to improving slicing performance. The discrete-rotary slicer under consideration uses a selection of cutting planes and provides better filling in the places where the models bend. To test the algorithm and wa...
Article
Full-text available
Methods of reinforcing products in additive manufacturing using continuous fibers was investigated in the paper, and also common problems inherent in 3D printing technologies including printing with continuous reinforcement was identified. The direction of development of the method of strengthening products with continuous fiber based on multi-axis...
Article
Full-text available
The article discusses systems for automatic removal and retrieval of printed products, as well as control systems for material supply in FDM 3D printers. The process of the module software for ensuring the functioning of these systems in a software and hardware integrated 3D printer is described. The capabilities of the developed module and the way...
Article
Full-text available
Existing drive belt tensioning systems in FDM 3D printers are considered. A comparative analysis of tensioning systems has been carried out, which has shown that the existing systems are characterized by the phenomenon of asymmetry of the action of forces during the stretching of the drive belt. A new design has been proposed and developed, which i...
Article
A comparative analysis of feed control systems in FDM 3D printers is carried out, their advantages and disadvantages are noted. The design is proposed and the principle of operation of a new material delivery control system with improved characteristics is described.
Article
Full-text available
Various approaches to additive manufacturing of metal objects are investigated. A method for feeding material based on the principle of operation of aninduction magnetohydrodynamic pump is proposed. The influence of the switching time effect on the pump flow rate is investigated.
Article
Full-text available
Faceplatemovement dynamics of pneumatic rotary table is investigated and its mathematical description is given, which has been verified experimentally. Control system construction and the algorithm of the automatic control program for rotarytable based on the analysis of angle sensor data in real time are proposed.
Article
Full-text available
The paper provides an overview of ways to increase the strength of polymer products obtained by fused filament fabrication (FFF) technology. An algorithm for calculating the spiral toolpaths for the material deposition using multi-axis printing is proposed. The design of the five-axis device for spiral-shaped deposition of the material is shown. Th...
Article
Full-text available
A review of Drop-on-Demand additive manufacturing methods was held. A method of complex forms aluminum parts production through the application of magnetohydrodynamic pump and 5 axis manufacturing process was proposed. 5 axis 3D printer assembly was shown. A few operation modes were proposed for such 3D printer and a method for fill lines paths cal...

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