The performance and lifespan of cutting tools are significantly influenced by their surface quality. The present report highlights recent advances in enhancing the surface characteristics of tungsten carbide and high-speed steel cutting tools using a novel micro-machining technique for polishing and edge-honing. Notably, the main aim was to reduce the surface roughness while maintaining the hardness of the materials at an optimal level. By conducting a thorough analysis of surfaces obtained using different techniques, it was found that the micro-machining method effectively decreased the surface roughness of the cutting tools the most effectively out of the techniques investigated. Significantly, the surface roughness was reduced from an initial measurement of 400 nm to an impressive value of 60 nm. No significant change in hardness was observed, which guarantees the maintenance of the mechanical properties of the cutting tools. This analysis enhances the comprehension of surface enhancement methodologies for cutting tools through the presentation of these findings. The observed decrease in surface roughness, along with the consistent hardness, exhibits potential for improving tool performance. These enhancements possess the capacity to optimise manufacturing processes, increase tool reliability, and minimise waste generation.
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http://dx.doi.org/10.3390/mi14101970 | DOI Listing |
J Orthop Case Rep
January 2025
Department of Orthopaedic Oncology, Aarhus University Hospital, Aarhus N, Denmark.
Introduction: In recent years, numerous hospitals have established in-house three-dimensional (3D) printing centers, enabling health-care facilities to leverage the transformative capabilities of additive manufacturing technology on their premises. With this emerging opportunity arises a necessity to undertake a thorough assessment of the manufactured tools employed in clinical practice. The objectives of this article are to describe the pathway of in-house printing and evaluate the accuracy of 3D-printed specific instruments.
View Article and Find Full Text PDFBMB Rep
January 2025
Department of Physics, Division of Interdisciplinary Bioscience & Bioengineering, POSTECH, Pohang 37673, Republic of Korea.
In the last few decades, single-molecule techniques have emerged as transformative tools for exploring biological problems. By observing and analyzing individual molecules, these methods make it possible to investigate fundamental dynamics of biomolecular processes deeper. Unlike traditional ensemble methods that average the behavior of populations, single-molecule approaches provide a unique window to observe molecular heterogeneity, transient interactions, and dynamic processes that are otherwise hidden.
View Article and Find Full Text PDFMaterials (Basel)
January 2025
Institute of Machine Tools and Production Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, Stefanowskiego 1/15, 90-537 Lodz, Poland.
The aim of the work was to investigate the influence of the machining parameters on the surface roughness and tool wear during slot milling of a polyurethane block (PUB). In the experiment, the influence of the cutting speed, the feed per tooth and the depth of cut on the roughness and of the milling slot surface and wear of the end mill was analyzed. A three-axis CNC milling machine Emco Concept Mill 55 was used to perform the study.
View Article and Find Full Text PDFMaterials (Basel)
January 2025
Institute of Machine Tools and Production Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, Stefanowskiego 1/15, 90-537 Lodz, Poland.
The article presents the results of research aimed at developing mathematical models for determining the components of grinding force occurring during the sharpening of the rake face of hob cutters. The development of the models was based on the results obtained during experimental tests conducted in the first stage of the research. The studies were carried out using a tool grinder and an aluminum oxide grinding wheel.
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December 2024
Institute of Mechanical Technology, Poznan University of Technology, 3 Piotrowo Street, 60-965 Poznan, Poland.
Titanium alloys, particularly Ti-6Al-4V, are widely used in many industries due to their high strength, low density, and corrosion resistance. However, machining these materials is challenging due to high strength at elevated temperatures, low thermal conductivity, and high chemical reactivity. This study investigates Recurrence Plot (RP) and Recurrence Quantification Analysis (RQA) to analyze tool wear during the finish turning of Ti-6Al-4V.
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