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        <title>Frontiers in Manufacturing Technology | Precision Engineering section | New and Recent Articles</title>
        <link>https://www.frontiersin.org/journals/manufacturing-technology/sections/precision-engineering</link>
        <description>RSS Feed for Precision Engineering section in the Frontiers in Manufacturing Technology journal | New and Recent Articles</description>
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        <pubDate>2026-05-01T20:20:33.973+00:00</pubDate>
        <ttl>60</ttl>
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        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fmtec.2025.1608699</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fmtec.2025.1608699</link>
        <title><![CDATA[Editorial: Advances of finite element methods in the precision manufacturing processes]]></title>
        <pubdate>2025-04-29T00:00:00Z</pubdate>
        <category>Editorial</category>
        <author>Chitaranjan Pany</author><author>Dawood Desai</author><author>Wagner de Rossi</author>
        <description></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fmtec.2024.1421589</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fmtec.2024.1421589</link>
        <title><![CDATA[Influence of material orientation, loading angle, and single-shot repetition of laser shock peening on surface roughness properties]]></title>
        <pubdate>2024-11-15T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Lebogang Lebea</author><author>Dawood Desai</author><author>Harry Ngwangwa</author><author>Fulufhelo Nemavhola</author>
        <description><![CDATA[Titanium alloy Ti6Al4V is extensively utilized in biomedical applications due to its excellent biocompatibility, corrosion resistance, and mechanical properties. The design of dental implant surface textures has changed throughout time to address issues with oral rehabilitation in both healthy and damaged bones. The longevity of an implant is significantly impacted by surface roughness. This study examines the use of laser shock peening (LSP) as a surface modification technique to improve the mechanical properties of implants. A numerical model is developed using the commercial finite elements software in ABAQUS/Explicit for simulating dynamic conditions. The aim of the study is to develop surface roughness parameters using computational methods such as studies have not yet been contemplated. The single shot angle, shot repeat, time, material orientation, and laser power are applied for the first time simultaneously to evaluate the impact of material orientation and loading angles on surface roughness parameters. The study showed that the developed computational model’s compressive residual stress was −578.45 MPa, while the experimental samples were −592.18 MPa. Consequently, the difference between the computational and experimental results was 2.32%. Without regard to material orientation or angle, the compressive residual stress of the samples under examination was found to be −578.450 MPa after three repetitions and to decreased to −1.620 MPa after four. These results demonstrate that by varying the material orientation and loading angle, the Ra value may be increased four times.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fmtec.2024.1411971</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fmtec.2024.1411971</link>
        <title><![CDATA[Modeling the interaction between powder particles and laser heat sources]]></title>
        <pubdate>2024-10-25T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>P. Baloyi</author><author>D. A. Desai</author><author>N. K. K. Arthur</author><author>S. L. Pityana</author>
        <description><![CDATA[This study investigates the spheroidization of titanium Ti-6Al-4V powder particles using numerical models developed in Abaqus and OpenFOAM. Spherical particles are crucial in powder-based additive manufacturing due to their superior flowability, packing density, and mechanical properties, enhancing printing precision and the quality of final products. While conventional techniques such as gas atomization and plasma spheroidization have been extensively researched, the potential of laser spheroidization remains underexplored. To address this gap, detailed numerical analyses of laser spheroidization were conducted, modeling heat transfer from the laser to powder particles using a transient uncoupled heat transfer method with latent heat considerations, while particle deformation was simulated with a phase-fraction-based interface-capturing approach integrated with Navier-Stokes equations. The results, validated against analytical models, indicate that particles within the 20–80 μm range experience optimal spheroidization within a 0.005-second residence time under laser heating, with particles smaller than 30 μm reaching evaporation temperatures of 5,000°C, while larger particles reshape without evaporating under a typical heat flux of 94 MW/m2 (1.8 kW laser power). This study demonstrates that laser spheroidization of Ti-6Al-4V powder can potentially increase powder yield by 10%, offering higher power density and shorter melting times compared to plasma spheroidization, thus presenting a more efficient alternative for achieving spherical particles of specific sizes.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fmtec.2023.1338222</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fmtec.2023.1338222</link>
        <title><![CDATA[Prediction of fatigue life of geometrically deviated steam turbine blades under thermo-mechanical conditions]]></title>
        <pubdate>2024-01-11T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Makgwantsha Hermelton Mashiachidi</author><author>Dawood A. Desai</author>
        <description><![CDATA[This study explores the intricate factors affecting the fatigue life of steam turbine blades, encompassing steam flow-induced bending, centrifugal loading, vibration response, structural mistuning, and temperature-dependent influences. By focusing on the significance of mistuned steam turbine blades with varying blade geometries due to manufacturing tolerances, this research has paramount relevance for the power generation industries. By employing finite element analysis (FEA) software, a simplified, mistuned, scaled-down steam turbine bladed disk model was developed, considering temperature-dependent material properties. Initial FEA provided insights into the vibration characteristics and steady-state stress responses, with numerical stress distributions evaluated, which were subsequently exported to Fe-Safe software for fatigue life calculations based on centrifugal and harmonic sinusoidal pressure loadings. By investigating the vibration characteristics and response to geometric blade variations, this study affirmed the reliability of the developed FEA model, with findings highlighting the pronounced sensitivity of fatigue life to blade length, width, and thickness variations, in this order. However, in order to validate the developed numerical models, analytical life cycle assessments were calculated, which exhibited a discrepancy of under 3.37%, reinforcing the applicability of the developed numerical methodology to real-world scenarios involving mistuned steam turbine blades experiencing manufacturing deviations in blade geometry.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fmtec.2023.1114414</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fmtec.2023.1114414</link>
        <title><![CDATA[Towards a multi-abrasive grinding model for the material point method]]></title>
        <pubdate>2023-02-03T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>S. Leroch</author><author>P. G. Grützmacher</author><author>H. Heckes</author><author>S. J. Eder</author>
        <description><![CDATA[An efficient optimization of surface finishing processes can save high amounts of energy and resources. Because of the large occurring deformations, grinding processes are notoriously difficult to model using standard (mesh-based) micro-scale modeling techniques. In this work, we use the meshless material point method to study the influence of abrasive shape, orientation, rake angle, and infeed depth on the grinding result. We discuss the chip morphology, the surface topography, cutting versus plowing mode, the material removal rate, and the chip temperature. A generalization of our model from a straightforward single-abrasive approach to a multiple-abrasive simulation with pseudo-periodical boundary conditions greatly increases the degree of realism and lays the foundation for comparison with real finishing processes. We finally compare our results for multiple abrasives to those obtained for a scaled-down molecular dynamics system and discuss similarities and differences.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fmtec.2023.1104742</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fmtec.2023.1104742</link>
        <title><![CDATA[Investigation of probing repeatability inside a micro-hole by changing probe approach direction for a local surface interaction force detection type microprobe]]></title>
        <pubdate>2023-02-02T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Masakazu Aruga</author><author>So Ito</author><author>Daichi Kato</author><author>Kimihisa Matsumoto</author><author>Kazuhide Kamiya</author>
        <description><![CDATA[The inner diameter measurement of the micro-hole was performed by a tactile microprobing system using a method of the local surface interaction force detection. The inner diameter of the micro-hole was calculated by the least square method based on the probing coordinates obtained by a custom-made micro-coordinate measuring machine. The dispersion of the probing coordinates was investigated by changing the probe approaching direction with respect to the normal direction of the inner side of the micro-hole. During the probing inside the micro-hole, it was confirmed that the dispersion of the probing coordinates increased when the disagreement between the probe approaching direction and the normal direction of the micro-hole at the measured point became large. The influence of the dispersion of the probing coordinates was evaluated through the uncertainty analysis of the inner diameter measurement. It was revealed that the uncertainty of the inner diameter measurement could be improved when limiting the disagreement between the probe approaching direction and the normal direction of the micro-hole to within ±pi/4 rad.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fmtec.2022.1102140</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fmtec.2022.1102140</link>
        <title><![CDATA[Potentials of grinding process simulations for the analysis of individual grain engagement and complete grinding processes]]></title>
        <pubdate>2023-01-23T00:00:00Z</pubdate>
        <category>Methods</category>
        <author>Petra Wiederkehr</author><author>Adina Grimmert</author><author>Ines Heining</author><author>Tobias Siebrecht</author><author>Florian Wöste</author>
        <description><![CDATA[Grinding processes are very complex due to the multitude of influencing parameters, resulting from the stochastic tool topography with numerous geometrically undefined abrasive cutting edges. Thus, the efficient design and optimization of these processes is a challenging task. Process simulations can be used as a flexible tool for analyzing interdependencies between several process parameters and identifying suitable process parameter values. For a precise process analysis, the choice of a process model with a corresponding model scale as well as the representation of optimization-relevant process effects are necessary. While macroscopic model approaches can be used to estimate the thermo-mechanical loads occurring in the contact zone, explicit modeling of the individual abrasive grains is required to predict the resulting surface topographies. In this paper, the use of simulation approaches for different scales for the analysis of different process parameters is discussed on the basis of selected application examples. The analysis of surface structuring in NC form grinding processes, e.g., was conducted by using an explicit geometric modeling of the individual abrasive grains in a geometric-physically based simulation approach to estimate wear-dependent resulting surface topographies. The parameterization of the empirical models used was based on numerical approaches for the detailed analysis of individual grain interventions. Using the complex production process of a turbine blade as an example, the utilization of a macroscopic simulation model for estimating the thermo-mechanical loads and the resulting temperatures in the workpiece during profile grinding processes is discussed.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fmtec.2022.1079127</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fmtec.2022.1079127</link>
        <title><![CDATA[Tool design for low-frequency vibration cutting on surface property]]></title>
        <pubdate>2023-01-13T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Shogo Nakamura</author><author>Kenichi Nakanishi</author><author>Kenji Ohara</author><author>Yoshikatsu Nakamura</author><author>Zongwei Ren</author><author>Toru Kizaki</author><author>Naohiko Sugita</author>
        <description><![CDATA[Low-frequency vibration cutting is a machining technology in which chips are broken by applying periodic vibrations along a specific axis. Periodic vibration deteriorates the surface roughness and roundness of the workpiece when compared to without vibration cutting. In this study, the properties of a machined surface under low-frequency vibration were simulated. Based on the simulation results, a tool was designed to reduce the effects of periodic vibration on the surface properties. Actual machining experiments were conducted using the proposed tool to clarify the relationship between tool shape, surface roughness, and roundness under low-frequency vibration. Using the proposed tool on low-frequency vibration cutting, the surface roughness was reduced (from 5.74 µm to .94 µm in Ra and 23.09 µm–6.66 µm in Rz), average roundness improved (from 4.73 µm to 2.95 µm), and maximum roundness decreased (from 15.34 µm to 3.61 µm) compared with those of the conventional tool.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/fmtec.2022.1021029</guid>
        <link>https://www.frontiersin.org/articles/10.3389/fmtec.2022.1021029</link>
        <title><![CDATA[Cloud-based process design in a digital twin framework with integrated and coupled technology models for blisk milling]]></title>
        <pubdate>2022-12-19T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Viktor Rudel</author><author>Pascal Kienast</author><author>Georg Vinogradov</author><author>Philipp Ganser</author><author>Thomas Bergs</author>
        <description><![CDATA[In this publication, the application of an implemented Digital Twin (DT) framework is presented by orchestration of CAM-integrated and containerized technology models carrying out FEM-coupled simulations for the finishing process of a simplified blade integrated disk (blisk) demonstrator. As a case study, the continuous acquisition, processing and usage of virtual process planning and simulation data as well as real machine and sensor data along the value chain is presented. The use case demonstrates the successful application of the underlying DT framework implementation for the prediction of the continuously changing dynamic behavior of the workpiece and according stable spindle speeds in the process planning phase as well as their validation in the actual manufacturing phase.]]></description>
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