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Current issue
Manufacturing Technology Journal, 2026 (vol. 26), issue 1
Control Measurement of Car Tires during Transport on a Conveyor
Patrik Balcar, Pavel Houška, Martin Svoboda, Ondřej Vetchý, Milan Chalupa, Milan Sapieta, Roman Horký
Manufacturing Technology 2026, 26(1):2-13 | DOI: 10.21062/mft.2026.002 
The aim of this work is to verify the reliability of optical inspection of tires during their transport on a roller conveyor, with an emphasis on the accuracy of 3D scanning in real and simulated operating conditions. A measuring box was designed and constructed to eliminate environmental interference, and measurements were subsequently compared with different degrees of site coverage. Testing was carried out using a 3D sensor O3D302 operating on the Time-of-Flight principle, and spatial data in the form of point clouds were obtained and compared with the reference dimensions of the Nokian WR D4 tire. The effects of solar IR radiation, rain, surface...
Ultrasonic-Based Active Thermography for Determining Depth Detection Limits in Onyx Composites
Lucia Deganová, Vladimír Dekýš, Milan Sapieta, Alžbeta Sapietová
Manufacturing Technology 2026, 26(1):14-25 | DOI: 10.21062/mft.2026.003
This paper examines the detection of internal defects in composite specimens composed of Onyx, a material featuring a nylon matrix reinforced with chopped carbon fibers. Artificial defects, in the form of flat-bottom holes of various geometries, were intentionally introduced during the additive manufac-turing process. The primary objective is to determine the depth detection capabilities of ultrasound by varying the excitation frequency and determining whether these defects remain identifiable at different subsurface levels. Ultrasonic lock-in thermography is utilized to excite specimens. As the frequency is modified, the depth of wave propagation...
Conceptual Design with Strength Analysis Based on the FOPS Test for a Tubular Cover Dedicated to the Kubota M135GX-IV Tractor
Łukasz Gierz, Mikołaj Spadło, Antoni Kuchta
Manufacturing Technology 2026, 26(1):26-33 | DOI: 10.21062/mft.2026.006
An agricultural tractor equipped with appropriately rated guards can often replace specialized forestry machinery. Currently, few authorized dealers on the Polish market offer tractors adapted to harsh forest conditions, so this work involved designing a tubular guard for the Kubota M135GX-VI agricul-tural tractor. The aim of this work was to develop a conceptual design for a tubular guard, together with a strength analysis based on FOPS procedures, dedicated to the KUBOTA M135GX-IV agricul-tural tractor. To properly design the tubular guard, applicable standards and regulations regarding the construction of cabs and tubular guards for agricultural...
Effect of Machining on 3D Surface Texture and Scratch Resistance of Structural Steel
Eva Jurickova, Oskar Zemcik, Stepan Kolomy, Josef Sedlak, Denisa Hrusecka, Felicita Chromjakova, Petra Sliwkova
Manufacturing Technology 2026, 26(1):34-42 | DOI: 10.21062/mft.2026.004
This study experimentally compares how three common machining routes, turning, milling and grinding, affect the surface texture and tribological response of three structural steels (C45, 42CrMo4, 30CrMoV9) under conditions where the profile roughness Ra is deliberately aligned across routes. Areal topography was measured by coherence correlation interferometry and evaluated according to ISO 25178 (height metrics Sa, Sq, Sp, Sv, Sz, St). The bearing area curve (Abbott–Firestone) was used to derive functional descriptors Rpk, Rk and Rvk. Scratch resistance was determined on a UMT‑3 tribometer (Rockwell 120°, P = 50 N) as HSp = 8·P /...
Effect of Accelerated Aging on the Mechanical Properties of FFF-Manufactured Polymers
Marcel Kohutiar, Martin Bednařík, Ivan Labaj, Róbert Janík, Jan Hanzlík, Michal Krbata, Jakub Zatloukal
Manufacturing Technology 2026, 26(1):43-52 | DOI: 10.21062/mft.2026.007
This study examines the effect of accelerated weathering on the mechanical and viscoelastic properties of thermoplastics produced by fused filament fabrication (FFF). Three polymers, acrylonitrile styrene acrylate (ASA), polyethylene terephthalate glycol (PETG), and polylactic acid (PLA), were subjected to alternating UV radiation and condensation cycles in a QUV chamber simulating environmental exposure. Tensile testing and dynamic mechanical analysis (DMA) were used to evaluate the changes in strength, stiffness, and glass-transition behavior. The results revealed distinct responses depending on the polymer structure. ASA maintained its ductility...
Machine Learning Regression Approaches for Manufacturing Cost and Time Prediction: A Comprehensive Review
Michal Matějka, Milan Dian, Jan Lhota, Theodor Beran, Vojtěch Hlinák
Manufacturing Technology 2026, 26(1):53-62 | DOI: 10.21062/mft.2026.010
Today, machine learning regression methods are quietly but fundamentally transforming cost and time estimation in manufacturing: from early pricing to labor planning to operational order management. This survey offers a comprehensive map of approaches - from linear models, to tree ensembles (RF, GBM, XGBoost) and shallow neural networks, to multi-target and tensor regressions that can exploit data structure across BOM items and sequences of operations. With an emphasis on SME conditions, we show how to reconcile three often conflicting requirements of practice: accuracy, explainability, and integration into existing data flows (MES/ERP). The paper...
Beverage-Cans as a Source of Hydrogen – Analysis of Leaching Residues
Alena Michalcová, Pavel Novák, Šárka Msallamová
Manufacturing Technology 2026, 26(1):63-67 | DOI: 10.21062/mft.2026.011
Aluminium beverage-can are common material for secondary utilization. Their recycling is slightly com-plicated by presence of organic materials in them and lack of collection points (although the legislative in this case is rapidly changing to be more friendly). Another approach to deal with beverage-cans is using them as a source of hydrogen. In this manuscript, the evolution of hydrogen in 10 wt. % NaOH solution is described. The leaching residues were analysed in detail. Their chemical and phase composi-tion were measured, and the amount of trapped hydrogen was also analysed. The beverage-cans are usually composed of 3004 and 5182. The residues...
Normalized Statistical Evaluation of Machining Parameters and Cutting Forces in Turning
Tanuj Namboodri, Csaba Felhő, Ashwani Kumar
Manufacturing Technology 2026, 26(1):68-77 | DOI: 10.21062/mft.2026.009
Investigation of cutting forces in metal cutting is of great importance for defining the effectiveness of the production as well as its impact on product quality. Several researchers studied the effect of cutting parameters on the cutting forces through statistical analysis; however, very few studies use the normalization of the data. Normalization reduces the skewness in the data and increases the accuracy of the results, which can be beneficial in modern industry where AI is being integrated with manufacturing. This research aimed to study the statistical analysis of cutting parameters and cutting forces using log-normalization and compare the accuracy...
Design and Life of a Ball Valve as per the ASME BPVC Section VIII by the Elastic Stress Analysis Method
Anupama Routray, Ripendeep Singh2, Lenka Cepova, V. Sandeep, B. Swarna B, Elangovan Muniyandy, Ankur Bansod, Pavel Krpec
Manufacturing Technology 2026, 26(1):78-87 | DOI: 10.21062/mft.2026.001
The fatigue assessment of a Class 300 valve body with a bore diameter of 450 mm under vari-ous pressures is discussed using Section VIII, Division 2 of the ASME BPVC. Finite element analysis (FEA) results are compared to fatigue test results, and correlations are obtained. The material used for the valve is A216 WCB, which is widely used for making API ball valves. Elastic stress analysis was used to study the influence of various parameters on the results. This method is widely accepted and is used for static components. The body and flange de-signs were performed in accordance with ASME and API standards. Various pressure loads were applied to the...
Mechanical Properties of 3D Printed Porous Ti-6Al-4V Alloy for Biomedical Applications
Markéta Straková, Jiří Kubásek, Dalibor Vojtěch
Manufacturing Technology 2026, 26(1):88-94 | DOI: 10.21062/mft.2026.005
Optimising the mechanical properties required for biomedical applications is something that porous Ti-6Al-4V structures offer the opportunity to do. Triply periodic minimal surface (TPMS) structures, such as the Diamond and Gyroid structures, provide interconnected pores that can be used to adjust strength, stiffness and deformation. The mechanical behaviour of these two architectures under compressive and bending loads is compared in this study, with the use of additively manufactured samples. The results demonstrate that pore geometry significantly impacts mechanical behaviour. Diamond structures exhibit higher stiffness and strength, whereas Gyroid...
Influence of High–melting–point Metals on the Mechanical Properties of Selected Al–Si Alloys
Tomáš Vlach, Jaromír Cais, Veronika Chvalníková, Martin Slezák, Jiří Brejcha, Tomáš Burket, Dominik Fink, Jan Sviantek
Manufacturing Technology 2026, 26(1):95-105 | DOI: 10.21062/mft.2026.008
This article is dedicated to exploring the potential enhancement of mechanical properties, such as hardness and tensile strength, in selected Al-Si alloys (AlSi7Mg0.3, AlSi7Cu4, and Al-Si10.5Cu1.2Mn0.8Ni1.2). High-melting-point elements, such as chromium and molybdenum, are rarely utilized as additives in Al-Si alloys. However, the article demonstrates the feasibility of improving the mechanical properties of these alloys through the addition of high-melting-point elements. High-melting-point metals, often referred to as refractory metals, typically have melting points above 2000 degrees Celsius. Common refractory metals include tungsten, molybdenum,...
Study on Thermo-Structural Coupling Mechanism and Multi-Field Evolution Law during the Firing Process of Ceramic Slabs
Xianewei Wang, Wenlong Xu, Hailong Yu, Chenyang Li, Haikuo Zhao, Yihang Feng, Caiqi Fang, Heng Zhang, Aihua Xu, Wentao Xie, Xiulian Li
Manufacturing Technology 2026, 26(1):106-116 | DOI: 10.21062/mft.2026.012
To address cracking and deformation in large-size ceramic slabs during firing induced by thermo-structural coupling, this study established an indirect thermo-structural coupling finite element model in Ansys to analyze an 820 mm×100 mm×6.32 mm slab. The evolution of temperature field, stress field, and deformation was investigated across four firing stages. Results indicate that the rapid cooling stage, with a high convective heat transfer coefficient, forms the cycle’s maximum thermal gradient, showing the most asymmetric temperature field of mid-plane high, surfaces low and a ~17°C surface-mid-plane temperature difference. The stress field...