Resource Management and Innovative Optimisation of Machining Modes in the Production of Complex-Shaped Components

Background. A pressing challenge in mechanical engineering is increasing labour productivity during the “cutting” operation. This topic is highly relevant because cutting tool capabilities continue to lag behind the technical potential of modern automated turning equipment. The solution is to apply...

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Datum:2026
Hauptverfasser: Petrova, Desislava, Balabanova, Ivelina, Georgiev, Georgi, Lengerov, Angel
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Veröffentlicht: Dr. Viktor Koval 2026
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Economics Ecology Socium
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author Petrova, Desislava
Balabanova, Ivelina
Georgiev, Georgi
Lengerov, Angel
author_facet Petrova, Desislava
Balabanova, Ivelina
Georgiev, Georgi
Lengerov, Angel
author_institution_txt_mv [ { "author": "Desislava Petrova", "institution": "Technical University of Gabrovo, Gabrovo, Bulgaria " }, { "author": "Ivelina Balabanova", "institution": "Technical University of Gabrovo, Gabrovo, Bulgaria" }, { "author": "Georgi Georgiev", "institution": "Technical University of Gabrovo, Gabrovo, Bulgaria" }, { "author": "Angel Lengerov", "institution": "Technical University of Sofia, Plovdiv, Bulgaria" } ]
author_sort Petrova, Desislava
baseUrl_str https://ees-journal.com/index.php/journal/oai
collection OJS
datestamp_date 2026-06-30T15:36:43Z
description Background. A pressing challenge in mechanical engineering is increasing labour productivity during the “cutting” operation. This topic is highly relevant because cutting tool capabilities continue to lag behind the technical potential of modern automated turning equipment. The solution is to apply innovative methods and software in production management and mechanical engineering. Purpose. The aim is to analyse and optimise the processing modes of complex parts and manage the implementation of innovations in mechanical engineering to achieve higher efficiency. Findings. A comparable tendency was identified in the second classification category of the probabilistic neural network model, characterised by improved performance indicators. For the model with comparatively lower classification performance, both the first and second output categories achieved the same accuracy of 90.0%. An assessment of the structural and technological characteristics of components with intricate profile geometries indicates that machining efficiency is strongly influenced by the complexity of part geometry and the diversity of manufacturing procedures when automated multifunctional equipment is applied. The final values of the “weight coefficients W” and “bases B” were determined, and the resulting matrix structures support compliance with the minimum Mean-Squared Error (MSE) criterion while increasing the reliability of predictive outcomes in evaluating production risk for mechanically engineered components and systems. Implications. The evaluation of machining-mode selection demonstrates that identifying optimal manufacturing conditions for components with sophisticated profile surfaces processed on automated systems remains a major engineering and economic challenge. Existing approaches for parametric optimisation insufficiently incorporate technological constraints. As the application of materials with specific physical and mechanical characteristics expands, along with the increasing geometric complexity of components and the wider implementation of multifunctional automated systems, technological production planning increasingly depends on the effective determination of cutting parameters and tool geometry, thereby contributing to improved manufacturing performance.
doi_str_mv 10.61954/2616-7107/2026.10.2-9
first_indexed 2026-07-01T01:00:34Z
format Article
fulltext Economics Ecology Socium e-ISSN 2786-8958 Volume 10 Issue 2 (2026) ISSN-L 2616-7107 124 Research Article UDC 621.9:658.51 JEL: M11, O32, D24 RESOURCE MANAGEMENT AND INNOVATIVE OPTIMISATION OF MACHINING MODES IN THE PRODUCTION OF COMPLEX-SHAPED COMPONENTS Desislava Petrova * Technical University of Gabrovo, Gabrovo, Bulgaria ORCID iD: 0000-0002-8970-5722 Ivelina Balabanova Technical University of Gabrovo, Gabrovo, Bulgaria ORCID iD: 0000-0002-0835-1732 Georgi Georgiev Technical University of Gabrovo, Gabrovo, Bulgaria ORCID iD: 0000-0001-5130-8652 Angel Lengerov Technical University of Sofia, Plovdiv, Bulgaria ORCID iD: 0009-0003-5475-2216 *Corresponding author E-mail: des_petrova@abv.bg Background. A pressing challenge in mechanical engineering is increasing labour productivity during the “cutting” operation. This topic is highly relevant because cutting tool capabilities continue to lag behind the technical potential of modern automated turning equipment. The solution is to apply innovative methods and software in production management and mechanical engineering. Purpose. The aim is to analyse and optimise the processing modes of complex parts and manage the implementation of innovations in mechanical engineering to achieve higher efficiency. Findings. A comparable tendency was identified in the second classification category of the probabilistic neural network model, characterised by improved performance indicators. For the model with comparatively lower classification performance, both the first and second output categories achieved the same accuracy of 90.0%. An assessment of the structural and technological characteristics of components with intricate profile geometries indicates that machining efficiency is strongly influenced by the complexity of part geometry and the diversity of manufacturing procedures when automated multifunctional equipment is applied. The final values of the “weight coefficients W” and “bases B” were determined, and the resulting matrix structures support compliance with the minimum Mean- Squared Error (MSE) criterion while increasing the reliability of predictive outcomes in evaluating production risk for mechanically engineered components and systems. Implications. The evaluation of machining-mode selection demonstrates that identifying optimal manufacturing conditions for components with sophisticated profile surfaces processed on automated systems remains a major engineering and economic challenge. Existing approaches for parametric optimisation insufficiently incorporate technological constraints. As the application of materials with specific physical and mechanical characteristics expands, along with the increasing geometric complexity of components and the wider implementation of multifunctional automated systems, technological production planning increasingly depends on the effective determination of cutting parameters and tool geometry, thereby contributing to improved manufacturing performance. Keywords: Manufacturing Efficiency, Mechanical Engineering, Optimisation, Production, Risk Assessment. Received: 05/03/2026 Revised: 27/05/2026 Accepted: 10/06/2026 Published: 30/06/2026 DOI: 10.61954/2616-7107/2026.10.2-9 © Economics Ecology Socium, 2026 CC BY-NC 4.0 license Economics Ecology Socium e-ISSN 2786-8958 Volume 10 Issue 2 (2026) ISSN-L 2616-7107 125 1. Introduction. Innovation obsolescence occurs due to ongoing changes driven by continuous technological improvements, as innovations serving identical production functions become obsolete. There are certain interrelations and interdependencies (a constellation) between innovation development and obsolescence that characterise the process of innovation obsolescence. The sustained trends of economic globalisation drive the rapid adoption of advanced technologies and automated manufacturing systems to improve productivity, enhance product quality, increase process flexibility and sustainability, and reduce the time required to bring products from concept to market. Worldwide industrial development demonstrates that manufactured products are becoming more sophisticated in both structural design and functional performance requirements (Dahmani et al., 2021; Demirova, 2019). Contemporary production concepts, therefore, require a substantially different approach to industrial manufacturing systems (Aleksandrova et al., 2025a; Petrova et al., 2025). Currently, mechanical processing is the most common method for producing various types of parts, including those with complex profiled surfaces. Despite the development and widespread implementation of methods for obtaining accurate blanks using concentrated energy flows for shaping (electrochemical, electrophysical, electron-beam processing, etc.), the proportion of surfaces subjected to mechanical processing remains sufficiently high. The analysis of the literature and production data (Aleksandrova et al., 2025b; Dahmani et al., 2021) indicates that 80-85% of component blanks are processed by cutting, and the labour intensity of these operations accounts for approximately 60% or more of the total labour intensity of component manufacturing. Therefore, determining the appropriate modes of operation for the instruments is an important technical and economic task. Its importance increases with the introduction of wide-scale automation of machine-building production, the application of multi-operation automated Computer Numerical Control Machines (CNC) lathes, and the use of new materials characterised by poor machinability during cutting (Marinov, 2024). Cutting is the most effective dimensional processing method across productivity, cost, energy consumption, environmental friendliness, processing accuracy, and quality. In the coming decades, cutting will remain the primary technological method for dimensional processing (Mitev, 2024). The following factors can explain this: - The increasing use of materials with special physical and mechanical properties, characterised by low machinability, increases the cost of producing the part. - Complicated configuration of the components, with simultaneous strict requirements for accuracy and quality of the processed surfaces. - Multi-purpose automated CNC lathes are used to process complex profile surfaces, which require a special approach to selecting mechanical processing modes. In the production of components combining complex surfaces (disks, shafts, rings, vanes, etc.), mechanical processing operations predominate, particularly turning. Machining operations constitute more than 50% of the labour intensity of aircraft engines. The final mechanical dimensional processing of parts is a perspective on a foreseeable period of development in mechanical engineering technology (Aleksandrova et al., 2025a). An actual problem in machining production is increasing the labour productivity of the "cutting" operation. This topic is highly relevant because cutting tool capabilities continue to lag behind the technical potential of modern automated lathes. When the allowance is removed or when a constant shear layer section is used, cutting speed is the primary factor affecting productivity. However, changing this parameter alters the nature and intensity of wear on the cutting tool, temperature in the cutting zone, processing accuracy, properties of the surface layer material, and other indicators (Liao, 2023; Tapie et al. 2012). Economics Ecology Socium e-ISSN 2786-8958 Volume 10 Issue 2 (2026) ISSN-L 2616-7107 126 Therefore, from a technical perspective, increasing the efficiency of the machining process through cutting should be considered a complex management measure, with all main factors ensured using mathematical methods of calculation and optimisation. A significant part of the developments in cutting mode optimisation is based on determining the variables influencing the cutting process using empirical methods under conditions aligned with the main goals of increasing productivity and reducing the cost of cutting tools, with set requirements for accuracy and surface roughness. Vachev (1998) noted that considerable attention has been paid to the development of empirical formulas to facilitate optimisation processes. In addition, the cutting modes were optimised using the developed empirical formulas that account for various variables influencing the cutting process (Velchev et al., 2014). A review of the literature shows that there are currently no universal analytical dependencies that reflect the relationships among all factors affecting the cutting process (Salapateva & Lengerov, 2025). It is important to note that, given the parameters of the cutting modes, it is not possible to establish the relationships between many influencing factors using empirical formulas. In this regard, enterprises used simplified metal-cutting machines and a limited range of materials for cutting tools and workpieces. With the development of mechanical engineering, especially the automation of metalworking equipment, it is necessary to consider a much larger number of variables than those used in existing empirical formulas when calculating the cutting modes. This necessitates the development of new methods for determining cutting modes and is a prerequisite for creating complex dependencies that can be presented as a table or nomogram. The analysis shows that determining the cutting modes using tables and nomograms is analogous to using formulas, but is simpler and thus feasible. However, it should be noted that general mechanical engineering regulations serve only as prerequisites for establishing load norms and do not guarantee the necessary flexibility. These shortcomings can also be noted in relation to the recommendations for companies producing cutting tools. The creation and implementation of automated systems for the design of technological processes for the component manufacturing, as well as for the automation of these processes, pose complex challenges for the theory of cutting. They concluded by formalising the basis for deep physical research into all the interrelationships of the cutting process, determining its performance, accuracy, quality, and, most importantly, its reliability. The calculation task for determining the processing conditions is complicated by the need to comprehensively assess input parameters when selecting a cutting mode combination, including the tool's durability, required accuracy, surface quality, and mode- specific factors. All of these are affected differently by temperature and cutting forces, which together determine the tool longevity, processing accuracy, and surface-layer characteristics. It is necessary to choose the depth, feed, and cutting speed in a complex manner, ensuring compliance with the requirements for the workpiece and tool, as well as the operating conditions of the equipment used. 2. Methodology. The solution to this complex technological task is possible through advanced mathematical models that account for the interrelationships among the main parameters of the machining process. The created mathematical models must be distinguished by sufficient accuracy and universality to yield solutions on computing equipment of a different class, and the emphasis in the development of mechanical processing technologies will be on solving technical tasks related to the automation of processing (Petrova et al., 2025). When choosing a variant of a technological process, including a variant for preserving a specific operation, the principle of optimality or the principle of ensuring the most advantageous conditions under the set technological limitations must be observed. Economics Ecology Socium e-ISSN 2786-8958 Volume 10 Issue 2 (2026) ISSN-L 2616-7107 127 For a precise selection of a technological procedure applied in machining operations of parts, it is necessary to determine the value of the sought-after technological parameter, which will ensure the greatest efficiency of the process at the specified quality of the produced output, productivity, costs of working capital, and technological and organisational-technical capabilities for fixed assets. With such a solution to a given task, it is necessary to perform it considering the relationship between the specified requirements for the part (surface roughness, depth and degree of overlap, residual stresses, dimensional accuracy, etc.) and processing modes (tool geometry, brand of the tool material, cutting modes, etc.). Calculations of the relationship between technological processing conditions are carried out, in particular, the cutting modes, the physical and mechanical properties of the workpiece and tool materials and other parameters, and the initial characteristics of the cutting process, such as wear resistance of the tool, productivity, cost of processing, and characteristics of the quality of the treated surface (Metev et al., 2025). Many models have been derived from experimental data. However, they only allow the determination of the optimal cutting speed and the corresponding relative magnitude of the tool surface wear. Under certain requirements, the resulting models may be related to the physical basis of a process. That is, these models in their entirety cannot be used to solve technological tasks. 2.1. Innovative Development on Technology. The dependencies are obtained based on the analysis of the results of a theoretical study of the method according to the theory of similarity and also sufficiently reliably evaluate the physical phenomenon associated with the chip separation process, on the one hand, and on the other hand, with the formation of the material of the surface layer of the processed part (Petrova et al., 2025). The influence of technological innovation is reflected in improvements to existing machines and equipment and in the construction of fundamentally new machines. Recent industrial practice shows a growing tendency toward modular standardisation and unification of machine components. This approach supports the rapid configuration of machines for different technological applications while maintaining common functional characteristics, reflecting the concept of mechatronic manufacturing systems. Research into the patterns of technological progress and enhancement enables identification of the time interval during which a particular machine generation provides maximum efficiency for a manufacturing process, as well as the transition period required to introduce new machine types into production (Petrova et al., 2025). This is also the place to focus on the management and optimisation of the processing modes of complex parts, as well as on implementing innovations in mechanical engineering to achieve higher efficiencies. It has been established that the extraordinary variety of options for performing operations in the mechanical processing of parts requires general solutions to the problem of selecting mode conditions when using process technology (Demirova, 2019). The proposed options cannot be determined solely using experimental research methods. The methodology and program for calculating the technological conditions of processing, as well as the parameters of the surface layer quality and the processing accuracy, do not account for cutting tool wear, the technological cost of processing, and the performance of the operation in the considered modes. The proposed models are general, as they were obtained through theoretical studies. 2.2. Technical Standardisation of Cutting Modes. Another argument is that the calculation of the cutting modes is basically technical standardisation, and that is why the determined speed, feed, depth of cut, wear resistance of the tool, intermediate allowances, and tolerances providing a minimum or a maximum of the optimality criterion, taking into account all the restrictions, are reported within the technical standardisation. Economics Ecology Socium e-ISSN 2786-8958 Volume 10 Issue 2 (2026) ISSN-L 2616-7107 128 Thus, the developed methodology and optimisation algorithms address the task of improving technical norming and determining basic time norms. The development of technological processes for manufactured parts within a given enterprise is a complex task, with corresponding requirements that must be met as a semi-finished product is transformed into a finished product that meets all requirements for its purpose. Before comparing the different variants of the technological process, internal optimisation for each variant must be performed (Metev et al., 2024). Currently, a significant number of methods for choosing cutting modes for individual mathematical treatments have been developed, and they can be divided into three groups depending on the way they are solved to find a conditional maximum (a classic example is determining the optimal cutting speed), to use mathematical programming and for optimal management. The analysis of these methods shows that all of them have certain shortcomings. The task of determining the cutting modes should be understood precisely as an optimal design and management problem. Models can be used with exponents, such as in the system setup size part, the tool wear rate, and the cutting power. For example, the parameters of the cutting process affect the changes in physicochemical phenomena accompanying processing, as well as their intensity. Technological optimisation is structural (intended to optimise the sequencing of transitions and operations during mechanical processing) and parametric (to optimise process parameters for individual operations). 2.3. Technological Optimisation and Production Management. The main features of technological optimisation, reflecting the goals in the production of engineering products, are as follows (Skorkin et al., 2019):  Technological solutions, starting from the choice of the initial workpiece, the sequence of processing, the choice of the cutting tool, and the cutting modes.  The structure of any technological solution is determined by the large number of its constituent elements and their connections.  Choosing an optimal technological solution at the intermediate stages is an undefined task. Despite the noted complexity, sufficiently complex mathematical models can be developed to assess the durability of cutting tools for heat- resistant alloys, titanium alloys, and high- strength steels. Analysing the content of these model dependencies, we should note that:  By offering these models for the different groups of processed materials, the physico-mechanical properties of the materials within each group are not considered.  The proposed models are first-order dependencies, where the range of change of the variable parameters is not given; the dependence of durability on the elements of the cutting mode is a non-monotonic function.  The offered models are not sufficiently complex and do not allow solving tasks in external and internal technological optimisation when processing complex profile parts. As already noted, optimising the technological parameters is a complex optimisation task due to the multivariate nature of the technological processes, the complexity of the configurations of the processed parts, etc. In real production conditions, this task is also complicated by the fact that, during processing, the cutting mode parameters and the geometry of the cutting tool change (Velchev et al., 2014). Therefore, the best option for mechanical processing should be selected, considering the accepted optimality criteria and integrating it into the variable control of the cutting process. It has been proven that spatial and temporal variability related to the geometric shape of the processed surface, variable-depth processing, allowance fluctuations, and changes in the cutting process geometry are important during processing. However, it should be noted that stationary cutting processes do not exist, especially when machining difficult-to-machine special steels and alloys. 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Prediction. b) onditions o y. 28.80 ⋯ ⋮ 24.06 ⋯ 1.38 …… 1.38 ved matrice al “weight e indicated um MSE cr results are level of and structur e-ISSN ISSN-L with the correct an e produc were const of (a) Highe ⋯ 0.43 ⋱ ⋮ ⋯ -1.48 876 … 876 es (2) and (3 coefficient matrix obj riterion is m e most reli production res. N 2786-8958 L 2616-7107 indicated d incorrect tion risk tructed, as est and (b) (2) (3) 3) show the ts W” and ects ensure met and that iable when n risk for 8 7 d t k s ) ) e d e t n r Economics Ecology Socium e-ISSN 2786-8958 Volume 10 Issue 2 (2026) ISSN-L 2616-7107 134 4. Conclusions. Based on the research and analysis conducted above, we can summarize the following conclusions. From a geometric perspective, the classification of surfaces based on the variety of "their forms and ways of obtaining" cannot be scientifically justified. However, systematising the approach to surface formation will enable the correct solution of tasks related to modelling complex profiled surfaces and the technological methods for their production. The class of parts with complex rotational shapes includes cylindrical parts (smooth and stepped). Therefore, all methods for processing cylindrical parts can be considered as technologies for processing rotary profile surfaces. Components characterised by complex rotational geometry consist of combinations of basic surfaces formed by straight and curved elements, including one or several geometric configurations such as cylindrical, frontal, conical, spherical, elliptical, or parabolic surfaces. Each elementary rotational surface can be represented mathematically for theoretical evaluation, while the coordinated motions of the generating and guiding mechanisms support the effective implementation of appropriate manufacturing methods. Different technological strategies are available for rough machining of complex- shaped components without additional allowances, allowing efficient operation in partially automated production environments. In most cases, processing workpieces with a complex rotational shape is a multipass process, with work moves performed parallel or perpendicular to the workpiece axis and equidistant from the workpiece contour. Cutting modes when turning parts with complex rotational shapes are non-stationary. When using CNC lathes and adaptive control systems, the cutting conditions vary from one working stroke to the next. Analysis of design and manufacturing characteristics of parts with complex-shaped components shows that the complexity of their geometry, together with the diversity of manufacturing procedures, strongly influences the effectiveness of machining operations performed on multifunctional automated equipment equipped with digital-program- controlled (DPC) systems. Given the quantity of materials with specific physical-mechanical properties, the complex configuration of parts, and the use of automated multifunctional equipment, the primary objective of technological production planning is to select cutting modes and tool geometry, thereby optimising the task and increasing production efficiency. The investigation of machining-mode selection issues indicates that defining optimal production conditions for components with complex profile surfaces on automated equipment remains a major technical and economic challenge. At present, there is still a shortage of parametric optimisation methodologies that adequately incorporate technological constraints. The final “weight coefficients W” and “bases B” were calculated. The indicated matrix objects ensure that the minimum MSE criterion is met and that the forecast results are the most reliable when analysing the level of production risk for complex mechanical engineering parts and structures. Conflict of Interest Statement. The authors declare no conflict of interest. Funding Disclosure. This research received no external funding. Data Availability. Data are available from the authors upon reasonable request. Economics Ecology Socium e-ISSN 2786-8958 Volume 10 Issue 2 (2026) ISSN-L 2616-7107 135 REFERENCES   Aleksandrova, I., Metev, H., & Kolev, N. (2025a). Determining the number of cutting tools, ensuring a continuous work cycle in CNC turning machines with robotic loading. 2025 International Conference Automatics and Informatics (ICAI), 384–388. IEEE. https://doi.org/10.1109/ICAI67591.2025.11324509 Aleksandrova, I., Metev, H., & Kolev, N. (2025b). Multi-purpose optimization of the turning process on CNC machines with robotic loading. 2025 International Conference Automatics and Informatics (ICAI), 378–383. IEEE. https://doi.org/10.1109/ICAI67591.2025.11324854 Dahmani, N., Benhida, K., Belhadi, A., Kamble, S., Elfezazi, S., & Jauhar, S. K. (2021). Smart circular product design strategies towards eco-effective production systems: A lean eco- design industry 4.0 framework. Journal of Cleaner Production, 320(128847), 128847. https://doi.org/10.1016/j.jclepro.2021.128847 Demirova, S. (2019). Turning knowledge into innovation and innovation into an effective product concept. 2019 International Conference on Creative Business for Smart and Sustainable Growth (CREBUS). https://doi.org/10.1109/CREBUS.2019.8840107. Liao, H. (2023). The processing method of CNC lathe processing technology for complex parts. Journal of Engineering Mechanics and Machinery, 8(3), 7-12. https://doi.org/10.23977/jemm.2023.080302 Marinov, M. (2024). Vector-matrix computer method for drafting circling-point curves and centering-point curves of Burmester. Environment Technology Resources Proceedings of the International Scientific and Practical Conference, 2, 440–443. https://doi.org/10.17770/etr2024vol2.8072 Metev, H., Aleksandrova, I., & Kolev, N. (2025). Multi-objective optimization of cutting parameters for CNC turning 42crmo4 hardened steel using utility function. Environment Technology Resources Proceedings of the International Scientific and Practical Conference, 4, 217–223. https://doi.org/10.17770/etr2025vol4.8413 Metev, H., Krumov, K., & Vlahova, B. (2024). Economic aspects of the modular tools. AIP Conference Proceedings, 3016, 060001. https://doi.org/10.1063/5.0184231 Mitev, I. (2024). Optimizing the quantity of liquid phase at the sintering of powder construction materials from system Fe-Cu-Sn. AIP Conference Proceedings, 3016, 060017. https://doi.org/10.1063/5.0184238. Petrova, D., Balabanova, I., & Georgiev, G. (2025). Digital Program Control and Complex Component Processing in Performance-Driven Production Engineering. Economics Ecology Socium, 9(4), 129–139. https://doi.org/10.61954/2616-7107/2025.9.4-9 Salapateva, S., & Lengerov, A. (2025). Cutting modes in multi-pass turning on CNC lathes. Environment Technology Resources Proceedings of the International Scientific and Practical Conference, 4, 369–373. https://doi.org/10.17770/etr2025vol4.8424 Skorkin, A., Kondratyuk, O., Lamnauer, N., & Burdeinaya, V. (2019). Improving efficiency of machining the geometrically complex shaped surfaces by milling with a fixed shift of the cutting edge. Eastern-European Journal of Enterprise Technologies, 2(1 (98), 60–69. https://doi.org/10.15587/1729-4061.2019.163325 Tapie, L., Mawussi, B., & Bernard, A. (2012). Topological model for machining of parts with complex shapes. Computers in Industry, 63(5), 528–541. https://doi.org/10.1016/j.compind.2012.02.005 Vachev, A. (1998). Synthesis and analysis of kinematic cutting schemes for rotating tool and workpiece. Plovdiv, Bulgaria: Technical University of Plovdiv. Velchev, S., Kolev, I., Ivanov, K., & Gechevski, S. (2014). 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spelling oai:ojs2.www.ees-journal.com:article-3482026-06-30T15:36:43Z Resource Management and Innovative Optimisation of Machining Modes in the Production of Complex-Shaped Components Resource Management and Innovative Optimisation of Machining Modes in the Production of Complex-Shaped Components Petrova, Desislava Balabanova, Ivelina Georgiev, Georgi Lengerov, Angel Manufacturing Efficiency, Mechanical Engineering, Optimisation, Production, Risk Assessment. Manufacturing Efficiency, Mechanical Engineering, Optimisation, Production, Risk Assessment. Background. A pressing challenge in mechanical engineering is increasing labour productivity during the “cutting” operation. This topic is highly relevant because cutting tool capabilities continue to lag behind the technical potential of modern automated turning equipment. The solution is to apply innovative methods and software in production management and mechanical engineering. Purpose. The aim is to analyse and optimise the processing modes of complex parts and manage the implementation of innovations in mechanical engineering to achieve higher efficiency. Findings. A comparable tendency was identified in the second classification category of the probabilistic neural network model, characterised by improved performance indicators. For the model with comparatively lower classification performance, both the first and second output categories achieved the same accuracy of 90.0%. An assessment of the structural and technological characteristics of components with intricate profile geometries indicates that machining efficiency is strongly influenced by the complexity of part geometry and the diversity of manufacturing procedures when automated multifunctional equipment is applied. The final values of the “weight coefficients W” and “bases B” were determined, and the resulting matrix structures support compliance with the minimum Mean-Squared Error (MSE) criterion while increasing the reliability of predictive outcomes in evaluating production risk for mechanically engineered components and systems. Implications. The evaluation of machining-mode selection demonstrates that identifying optimal manufacturing conditions for components with sophisticated profile surfaces processed on automated systems remains a major engineering and economic challenge. Existing approaches for parametric optimisation insufficiently incorporate technological constraints. As the application of materials with specific physical and mechanical characteristics expands, along with the increasing geometric complexity of components and the wider implementation of multifunctional automated systems, technological production planning increasingly depends on the effective determination of cutting parameters and tool geometry, thereby contributing to improved manufacturing performance. Background. A pressing challenge in mechanical engineering is increasing labour productivity during the “cutting” operation. This topic is highly relevant because cutting tool capabilities continue to lag behind the technical potential of modern automated turning equipment. The solution is to apply innovative methods and software in production management and mechanical engineering. Purpose. The aim is to analyse and optimise the processing modes of complex parts and manage the implementation of innovations in mechanical engineering to achieve higher efficiency. Findings. A comparable tendency was identified in the second classification category of the probabilistic neural network model, characterised by improved performance indicators. For the model with comparatively lower classification performance, both the first and second output categories achieved the same accuracy of 90.0%. An assessment of the structural and technological characteristics of components with intricate profile geometries indicates that machining efficiency is strongly influenced by the complexity of part geometry and the diversity of manufacturing procedures when automated multifunctional equipment is applied. The final values of the “weight coefficients W” and “bases B” were determined, and the resulting matrix structures support compliance with the minimum Mean-Squared Error (MSE) criterion while increasing the reliability of predictive outcomes in evaluating production risk for mechanically engineered components and systems. Implications. The evaluation of machining-mode selection demonstrates that identifying optimal manufacturing conditions for components with sophisticated profile surfaces processed on automated systems remains a major engineering and economic challenge. Existing approaches for parametric optimisation insufficiently incorporate technological constraints. As the application of materials with specific physical and mechanical characteristics expands, along with the increasing geometric complexity of components and the wider implementation of multifunctional automated systems, technological production planning increasingly depends on the effective determination of cutting parameters and tool geometry, thereby contributing to improved manufacturing performance. Dr. Viktor Koval 2026-06-30 Article Article Peer-reviewed Article application/pdf https://ees-journal.com/index.php/journal/article/view/348 10.61954/2616-7107/2026.10.2-9 Economics Ecology Socium; Vol. 10 No. 2 (2026): Economics Ecology Socium; 124-135 Економіка Екологія Соціум; Том 10 № 2 (2026): Economics Ecology Socium; 124-135 2616-7107 2616-7107 10.61954/2616-7107/2026.10.2 en https://ees-journal.com/index.php/journal/article/view/348/300 Copyright (c) 2026 Economics Ecology Socium https://creativecommons.org/licenses/by-nc/4.0
spellingShingle Manufacturing Efficiency
Mechanical Engineering
Optimisation
Production
Risk Assessment.
Petrova, Desislava
Balabanova, Ivelina
Georgiev, Georgi
Lengerov, Angel
Resource Management and Innovative Optimisation of Machining Modes in the Production of Complex-Shaped Components
title Resource Management and Innovative Optimisation of Machining Modes in the Production of Complex-Shaped Components
title_alt Resource Management and Innovative Optimisation of Machining Modes in the Production of Complex-Shaped Components
title_full Resource Management and Innovative Optimisation of Machining Modes in the Production of Complex-Shaped Components
title_fullStr Resource Management and Innovative Optimisation of Machining Modes in the Production of Complex-Shaped Components
title_full_unstemmed Resource Management and Innovative Optimisation of Machining Modes in the Production of Complex-Shaped Components
title_short Resource Management and Innovative Optimisation of Machining Modes in the Production of Complex-Shaped Components
title_sort resource management and innovative optimisation of machining modes in the production of complex-shaped components
topic Manufacturing Efficiency
Mechanical Engineering
Optimisation
Production
Risk Assessment.
topic_facet Manufacturing Efficiency
Mechanical Engineering
Optimisation
Production
Risk Assessment.
Manufacturing Efficiency
Mechanical Engineering
Optimisation
Production
Risk Assessment.
url https://ees-journal.com/index.php/journal/article/view/348
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