Journal articles: 'Cutting of metal materials'

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Zhudra, A. P., A. P. Voronchuk, A. A. Fomakin, and S. I. Veliky. "Materials and equipment for surfacing of metal hot cutting knives." Paton Welding Journal 2015, no. 6 (June 28, 2015): 93–95. http://dx.doi.org/10.15407/tpwj2015.06.21.

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Gordon, S., and M. T. Hillery. "A review of the cutting of composite materials." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 217, no. 1 (January 1, 2003): 35–45. http://dx.doi.org/10.1177/146442070321700105.

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The increased use of composite materials has led to an increase in demand for facilities to machine them. There are significant differences between the machining of metals and alloys and that of composite materials, because composites are anisotropic, inhomogeneous and are mostly prepared in laminate form before undergoing the machining process. In most cases, traditional metal cutting tools and techniques are still being used. While the process of metal cutting has been well researched over the years, relatively little research has been carried out on the cutting of composite materials. This paper presents a brief review of research on the cutting of fibre reinforced polymer (FRP) composites and medium-density fibreboard (MDF). Most of the research published is concentrated on the chip formation process and cutting force prediction with unidirectional FRP materials. A review of some recent research on the prediction of cutting forces for MDF is also presented.

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Yamaguchi, K., T. Nakamoto, T. Mizuno, and S. Daido. "The Development of Free Machining Sintered Metals Including Nonmetallic Materials." Journal of Engineering for Industry 115, no. 3 (August 1, 1993): 278–83. http://dx.doi.org/10.1115/1.2901661.

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This paper deals with the lubricating action of nonmetallic inclusions in metal cutting. The purpose of this study is to find the most effective inclusions for metal cutting, and to develop free machining sintered metals including nonmetallic materials. The most effective additives are glass, boron nitride, and talc. By the addition of 3 percent glass to the iron, tool life could be increased 60 times.

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Übelacker, David, Johannes Hohmann, and Peter Groche. "Force Requirements in Shear Cutting of Metal-Polymer-Metal Composites." Advanced Materials Research 1018 (September 2014): 137–44. http://dx.doi.org/10.4028/www.scientific.net/amr.1018.137.

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New approaches in lightweight design require the use of multi materials like metalpolymermetal composites. Composite materials, especially so-called sandwich panels, offer the possibility to combine properties of different materials synergistically. Shear cutting is one of the commonly used manufacturing processes. However, conventional shear cutting of sandwich panels leads to characteristic types of failure, such as high bending of the facings, delamination effects, burr formation and an undefined cracking of the core material. In the present research, the cutting force requirement and the failure progress for lubricant free shear cutting of metal-polymer-metal composites is studied. Two thermoplastic polymers, an aluminum sheet and an unalloyed steel sheet are combined in order to create different composite materials. Furthermore, the composite materials are cut stepwise to examine the different stages of a cutting process in detail.

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Kaneeda, Toshiaki, K. Ishioka, L. Anthony, and Y. Goto. "Lubricant Applying Effect Mechanism in Inconel 718 Cutting - Effects of Cutting Speed and Depth of Cut -." Advanced Materials Research 325 (August 2011): 424–29. http://dx.doi.org/10.4028/www.scientific.net/amr.325.424.

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Applying materials on the precut surface of ductile metal cuttings can greatly improve their machinability, due to the reduction in friction between the lamella of the chip. We refer to this effect as the lubricant applying effect. This paper investigates the influences of the lubricant applying effect on the cutting of the super alloy Inconel 718. The experimental results demonstrate that the lubricant applying effect plays an important role in Inconel 718 cutting as well as ductile metal cutting.

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Kramer, B. M. "Tribological Aspects of Metal Cutting." Journal of Engineering for Industry 115, no. 3 (August 1, 1993): 372–76. http://dx.doi.org/10.1115/1.2901677.

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The machining of metals presents a unique tribological situation in which atomically clean, metallic surfaces are cleaved from the interior of the workpiece and maintained in a condition of nearly 100 percent real area of contact with the tool surface during sliding. The conditions of high pressure, high temperature, and essentially uncontaminated contact during sliding create a highly ideal tribological system for analysis. As compared to conventional sliding wear, the analysis of which is complicated by multiple passes of the counterface materials and various forms of contamination and surface reaction, the predictive modeling of tool wear has achieved somewhat greater, if still modest, success. Current models of cutting tool wear are assessed with regard to their usefulness in developing quantitative analytical methods for designing new tool materials and for selecting optimum tool materials under variations in cutting conditions. Approaches which predict the relative wear resistances of potential tool materials from the physical and chemical properties of the tool-work-piece system, without recourse to calibration tests for each system, are emphasized.

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Weinmann, Klaus J. "Metal cutting principles." Mechanism and Machine Theory 21, no. 5 (January 1986): 445–46. http://dx.doi.org/10.1016/0094-114x(86)90094-7.

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Kimura, Tomonori, Takekazu Sawa, and Tatsuyuki Kamijyo. "Study on High-Speed Milling of Steam Turbine Blade Materials - Differences in Cutting Characteristics of an Unforged Ingot and a Forged Part of Stainless Steel." Key Engineering Materials 749 (August 2017): 3–8. http://dx.doi.org/10.4028/www.scientific.net/kem.749.3.

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Stainless steel is an excellent material that has properties such as heat and corrosion resistance. Thus, stainless steel is used as a material in steam turbine blades. Steam turbine blades are mainly manufactured using two methods. One is the cutting of unforged metal ingots. Another is the cutting of forged parts. Small blades are made by cutting metal ingots. Large blades are made by cutting forged parts. The mechanical characteristics of a metal ingot and a forged part, such as hardness and toughness, are almost the same. There were not researches related to a relationship between “an unforged ingot and a forged part of stainless steel” and “the differences of the tool wear and the finished surface by high-speed milling”.In this study, the high-speed milling of stainless steel was attempted for high-efficiency cutting of a steam turbine blade. The differences of the tool wear and the finished surface in the cuttings of an unforged ingot and a forged part were investigated. In the experiment, the cutting tool was a TiAlN coating radius solid end mill made of cemented carbide. The diameter of the end mill was 5 mm, and the corner radius was 0.2 mm. The cutting speed were 100 m/min-600 m/min. The workpieces used were a metal ingot and a forged part of stainless steel. In the results, it was found that the differences of the tool wear and the finished surface in the cuttings of an unforged ingot and a forged part. In the case of the unforged ingot, the flank wear became large with increasing cutting speed. On the other hand, in the case of forged part, the flank wear rapidly increased at a cutting speed of 100 m/min. In addition, the flank wear became smaller than the cutting speed 100 m/min at the cutting speed 200 m/min. Further, the flank wear became large with increasing cutting speed at cutting speeds higher than 200 m/min. That is, the flank wear was at a minimum at a cutting speed of 200 m/min. Although it could not be confirmed the characteristic of high speed milling at an unforged ingot, it has been identified at a forged part.

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Trent, E. M. "Metal cutting and the tribology of seizure: III temperatures in metal cutting." Wear 128, no. 1 (November 1988): 65–81. http://dx.doi.org/10.1016/0043-1648(88)90253-0.

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Olaru, Ciprian, Valentin Nedeff, Mirela Panaite-Lehadus, and Ionel Olaru. "Losses Analysis of Materials Resulted from Shredding of Food Materials with Soft Texture by Means of Metal Wire Cutting." Applied Mechanics and Materials 659 (October 2014): 533–38. http://dx.doi.org/10.4028/www.scientific.net/amm.659.533.

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The paper treats the analysis of losses of juice/material resulting from shredding of food materials with soft texture by means of metal wire cutting. For a better relevance of determinations have been chosen different food materials, different diameters of metal wire cutting and different heating temperatures. The objective of this analysis is to identify the correlations that exist between the cutting device and the product obtained after shredding, in order to improve shredding efficiency by reducing the losses of juice / materials resulted from shredding of food materials.

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Zou, Zheng Long, Xiong Duan, and Chu Wen Guo. "Studied for Mechanism of that Abrasive Water Jet Cutting Metal Materials." Applied Mechanics and Materials 513-517 (February 2014): 218–22. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.218.

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Combining with the electron microscope analysis of the morphology of incision, the mechanism of abrasive water jet cutting metal materials was carried out to explore, for the rational selection of abrasive jet cutting parameters, to extend its application to provide the basis. Study shows that the abrasive water jet cutting metal materials, the material damage mechanism is mainly to yield deformation and failure and shear of grinding damage, grooving formation is mainly caused by falling impact deformation and furrows grinding.

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Pervaiz, Salman, Sathish Kannan, Ibrahim Deiab, and Hossam Kishawy. "Role of energy consumption, cutting tool and workpiece materials towards environmentally conscious machining: A comprehensive review." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 234, no. 3 (September 16, 2019): 335–54. http://dx.doi.org/10.1177/0954405419875344.

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Metal-cutting process deals with the removal of material using the shearing operation with the help of hard cutting tools. Machining operations are famous in the manufacturing sector due to their capability to manufacture tight tolerances and high dimensional accuracy while simultaneously maintaining the cost-effectiveness for higher production levels. As metal-cutting processes consume a great amount of input resources and generate some material-based waste streams, these processes are highly criticized due to their high and negative environmental impacts. Researchers in the metal-cutting sector are currently exploring and benchmarking different activities and best practices to make the cutting operation environment friendly in nature. These eco-friendly practices mainly cover the wide range of activities directly or indirectly associated with the metal-cutting operation. Most of the literature for sustainable metal-cutting activities revolves around the sustainable lubrication techniques to minimize the negative influence of cutting fluids on the environment. However, there is a need to enlarge the assessment domain for the metal-cutting process and other directly and indirectly associated practices such as enhancing sustainability through innovative methods for workpiece and cutting tool materials, and approaches to optimize energy consumption should also be explored. The aim of this article is to explore the role of energy consumption and the influence of workpiece and tool materials towards the sustainability of machining process. The article concludes that sustainability of the machining process can be improved by incorporating different innovative approaches related to the energy and tool–workpiece material consumptions.

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13

Yamane, Yasuo. "Special Issue on Difficult-to-Cut Materials." International Journal of Automation Technology 7, no. 3 (May 5, 2013): 255. http://dx.doi.org/10.20965/ijat.2013.p0255.

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Nickel-based super alloys, Ti alloys, CFRP, hardened steels, etc., are widely used in aerospace, automobile, chemical, and other industries because of such superior properties as high operating temperature, superior specific strength, outstanding hardness and/or great toughness. These properties, however, also present difficulties in machining, cutting temperature, cutting, adhesiveness, chip controllability and wear. Other distinguishing properties include instable tool life, surface finishing and chip control in machining. This means that the stabilization of cutting is very important, especially when machining NC machine tools. Metal machining involves many parameters, such as cutting tools, cutting oil, cutting speed, feed rate, depth of cut, and machine use. A metal machining engineer therefore must decide all of these parameters to ensure their most suitable values under boundary conditions such as machining time, accuracy and the surface roughness of machined parts. Machining, especially of difficult-to-cut materials, is an optimization problem occurring under specified boundary conditions. Choosing machining parameters, including tool geometry and the most favorable features of work materials, must thus be figured out and optimum cutting conditions selected based both on metal machining theory and on practice. This special issue covers recent development in the machining of difficult-to-cut materials, including hardened steel, stainless steel, titanium alloys, Inconel 718, hard brittle materials and CFRP. All of the papers in this special issue are of great interest and value in machining these materials. We thank the authors for their invaluable submissions and the reviewers for their earnest efforts, without which this special issue would not have been possible.

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Panasenko, A. I., I. I. Morev, L. S. Berdinskikh, V. M. Nemkin, V. D. Shirenin, and M. S. Kirpichev. "Electrocontact cutting of scrap metal." Metallurgist 34, no. 10 (October 1990): 239. http://dx.doi.org/10.1007/bf00748215.

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Polák, Pavel, Ján Žitňanský, Petr Dostál, and Katarína Kollárová. "Surface Analysis of Metal Materials After Water Jet Abrasive Machining." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 63, no. 5 (2015): 1529–33. http://dx.doi.org/10.11118/actaun201563051529.

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In this article, we deal with a progressive production technology using the water jet cutting technology with the addition of abrasives for material removal. This technology is widely used in cutting various shapes, but also for the technology of machining such as turning, milling, drilling and cutting of threads. The aim of this article was to analyse the surface of selected types of metallic materials after abrasive machining, i.e. by assessing the impact of selected machining parameters on the surface roughness of metallic materials.

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Brailovskii, M. I., A. G. Voskoboinik, A. A. D’yakonov, and I. V. Shmidt. "Optimal materials for the manufacture of metal-cutting machines." Russian Engineering Research 36, no. 10 (October 2016): 846–50. http://dx.doi.org/10.3103/s1068798x1610004x.

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Childs, T. H. C. "Friction modelling in metal cutting." Wear 260, no. 3 (February 2006): 310–18. http://dx.doi.org/10.1016/j.wear.2005.01.052.

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Yanagisawa, A., M. Kaneko, and T. Nakagawa. "Production of Metal Fiber by Coiled Sheet Slicing Method and Its Composite Materials." Advanced Composites Letters 1, no. 1 (January 1992): 096369359200100. http://dx.doi.org/10.1177/096369359200100110.

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A new manufacturing process of long-length metal fiber which can be applied to the composite materials has been developed. In this new process, the metal fiber is produced out of coiled thin metallic sheet by a new slicing method. In the manufacturing trial, each specific cutting conditions for fiber production from brass and either copper or stainless steel has been confirmed. This method has high productivity and applicability for many kind of materials. Then, the metal fiber obtained this method can be used for various fields of composite materials1). As one of the important characteristics of this method, it is capable that a uniformly mixed different material fibers can be easily produced with different material sheets such as metal, plastics and paper and so on, which are wound layer by layer. Using a uniformly mixed fiber of plastics and metals, the plastic pellet and sheet including metal fiber has been produced. Further, the electric conductive composite materials has been developed utilizing the plastic pellets and sheets.

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Guerra Silva, Rafael, Uwe Teicher, Alexander Brosius, and Steffen Ihlenfeldt. "2D Finite Element Modeling of the Cutting Force in Peripheral Milling of Cellular Metals." Materials 13, no. 3 (January 23, 2020): 555. http://dx.doi.org/10.3390/ma13030555.

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The machining of cellular metals has been a challenge, as the resulting surface is extremely irregular, with torn off or smeared material, poor accuracy, and subsurface damage. Although cutting experiments have been carried out on cellular materials to study the influence of cutting parameters, current analytical and experimental techniques are not suitable for the analysis of heterogeneous materials. On the other hand, the finite element (FE) method has been proven a useful resource in the analysis of heterogeneous materials, such as cellular materials, metal foams, and composites. In this study, a two-dimensional finite element model of peripheral milling for cellular metals is presented. The model considers the kinematics of peripheral milling, depicting the advance of the tool into the workpiece and the interaction between the cutting edge and the mesostructure. The model is able to simulate chip separation as well as the surface and subsurface damage on the machined surface. Although the calculated average cutting force is not accurate, the model provides a reasonable estimation of maximum cutting force. The influences of mesostructure on cutting processes are highlighted and the effects in peripheral milling of cellular materials are discussed.

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Llanto, Jennifer Milaor, Majid Tolouei-Rad, Ana Vafadar, and Muhammad Aamir. "Recent Progress Trend on Abrasive Waterjet Cutting of Metallic Materials: A Review." Applied Sciences 11, no. 8 (April 8, 2021): 3344. http://dx.doi.org/10.3390/app11083344.

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Abrasive water jet machining has been extensively used for cutting various materials. In particular, it has been applied for difficult-to-cut materials, mostly metals, which are used in various manufacturing processes in the fabrication industry. Due to its vast applications, in-depth comprehension of the systems behind its cutting process is required to determine its effective usage. This paper presents a review of the progress in the recent trends regarding abrasive waterjet cutting application to extend the understanding of the significance of cutting process parameters. This review aims to append a substantial understanding of the recent improvement of abrasive waterjet machine process applications, and its future research and development regarding precise cutting operations in metal fabrication sectors. To date, abrasive waterjet fundamental mechanisms, process parameter improvements and optimization reports have all been highlighted. This review can be a relevant reference for future researchers in investigating the precise machining of metallic materials or characteristic developments in the identification of the significant process parameters for achieving better results in abrasive waterjet cutting operations.

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Wang, Pei, Shanmin Wang, Yongtao Zou, Jinlong Zhu, Duanwei He, Liping Wang, and Yusheng Zhao. "Novel Nitride Materials Synthesized at High Pressure." Crystals 11, no. 6 (May 29, 2021): 614. http://dx.doi.org/10.3390/cryst11060614.

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Nitride materials including conventional manmade superhard light-element nitrides, such as cubic boron nitride (cBN), cubic silicon nitride (γ-Si3N4), and carbonitrides, have been extensively used for machining (e.g., turning, cutting, grinding, boring, drilling) and coating of ferr ous alloys due to their remarkable performances of high rigidity, high melting-point, and prominent chemical and thermal stabilities. However, to some degree, superhard nitrides merely compensate for the adverse limitations of diamond: reaction (with iron), oxidation, and graphitization at moderate temperatures; they are still unable to dominate the market owing to their relatively low hardness when compared to diamond. Therefore, recent efforts toward the preparation of nitride materials with outstanding mechanical performance and chemical inertness have focused on synthesizing ternary light-element nitride compounds and harvesting the effect of work hardening through microstructure manipulations. These new light-element nitrides are potential candidates to displace diamond in the cutting business. On the other hand, incorporation of transition-metal atoms into the dinitrogen triple-bond can form novel hard transition-metal nitride alloys (TMNAs), such as Mo-N, W-N, Pt-N, Ir-N, Os-N, etc., which are potential candidates for the cutting, coating, and polishing of iron-group metals. However, synthesis of high-crystallinity and stoichiometric TMNAs via traditional routes is challenging, since the embedded nitrogen in the transition-metal lattice is thermodynamically unfavorable at ambient condition. A novel approach involving ion-exchange reactions under moderate pressure and temperature has been developed in recent years for preparation of well-crystallized stoichiometric TMNAs, which have quickly been realized as emergent materials in electronics, catalysts, and superconductors as well.

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Limido, J., C. Espinosa, M. Salaun, C. Mabru, R. Chieragatti, and J. L. Lacome. "Metal cutting modelling SPH approach." International Journal of Machining and Machinability of Materials 9, no. 3/4 (2011): 177. http://dx.doi.org/10.1504/ijmmm.2011.039645.

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Lu, Fan Xiu, Yong Ping Lv, Li Fu Hei, Wei Zhong Tang, and Jian Hua Song. "High Current Extended DC Arc Plasma CVD for Mass Production of Diamond Film Coated Hard Metal Cutting Tools." Advanced Materials Research 211-212 (February 2011): 766–69. http://dx.doi.org/10.4028/www.scientific.net/amr.211-212.766.

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Diamond film coated hard metal cutting tools are indispensible for high efficiency machining of materials which are difficult to cut by ordinary tools, and are successfully used in the dry cutting of high silicon content Al-Si cast alloys, graphite, carbon reinforced composite (CRFC) and metal matrix composite (MMC) , ceramics, and many other materials. In the present presentation, a novel process of High Current Extended DC Arc (HCEDCA) plasma CVD for mass production of diamond film coated hard metal cutting tools is presented. Besides, a novel process for the pretreatment of the hard metal cutting tool substrate, which involves the idea of “surface engineering” consisting of boronizing and alkaline and acidic etching is also discussed, by which the adhesion of the diamond film coating to the hard metal substrate can be greatly enhanced. Highly adherent and uniform diamond film coatings are successfully obtained. Diamond film coated WC-6wt%Co indexable tool bits, drills, endmill samples have been produced and been shown having excellent cutting performance by field cutting tests in dry cutting of Al-12%Si cast alloy and Al-15% SiC MMC materials.

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Omlor, R. E., and P. F. Lloyd. "Microtomy applications for materials science." Proceedings, annual meeting, Electron Microscopy Society of America 47 (August 6, 1989): 710–11. http://dx.doi.org/10.1017/s0424820100155529.

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Standard sample preparation techniques of various metals, composites, ceramics and polymer specimens can be very time consuming (such as dimpling and ion milling etc.), yet still introroduce artifacts during specimen preparation. With many of these materials numerous hours and sometimes even days can be spent preparing samples for TEM studies. In the past, ultramicrotomy has been used primarily for biological applications, but over the years has been tried on various polymers, metal and ceramic powders, oxide layers, etc. The main concern has been deformation introduced to the specimen while cutting. This study will demonstrate successful ultramicrotomy over a variety of non-biological specimens.Materials chosen for this experiment consist of Rapidly Solidified (RS) Al-V powders, P-120 Carbon fibers, Silicon Carbide (MMC) fibers, Kevlar and an IC semiconductor chip. Routine SEM micrographs were taken of all material as-received. All the specimens were embedded using a low viscoscity resin, L. R. White (hard grade). They were microtomed with a diamond knife at a 55-60° cutting angle using an AO/Reichert Ultracut Ultramicrotome with a slow cutting speed of 0.4 mm/sec which obtained the best results. All sections were picked up on Hex 700TB Ni grids.

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Jansen, Tobias, David Blass, Sven Hartwig, and Klaus Dilger. "Processing of Advanced Battery Materials—Laser Cutting of Pure Lithium Metal Foils." Batteries 4, no. 3 (August 6, 2018): 37. http://dx.doi.org/10.3390/batteries4030037.

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Due to the increasing demand for high-performance cells for mobile applications, the standards of the performance of active materials and the efficiency of cell production strategies are rising. One promising cell technology to fulfill the increasing requirements for actual and future applications are all solid-state batteries with pure lithium metal on the anode side. The outstanding electrochemical material advantages of lithium, with its high theoretical capacity of 3860 mAh/g and low density of 0.534 g/cm3, can only be taken advantage of in all solid-state batteries, since, in conventional liquid electrochemical systems, the lithium dissolves with each discharging cycle. Apart from the current low stability of all solid-state separators, challenges lie in the general processing, as well as the handling and separation, of lithium metal foils. Unfortunately, lithium metal anodes cannot be separated by conventional die cutting processes in large quantities. Due to its adhesive properties and toughness, mechanical cutting tools require intensive cleaning after each cut. The presented experiments show that remote laser cutting, as a contactless and wear-free method, has the potential to separate anodes in large numbers with high-quality cutting edges.

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Sulaiman, S., A. Roshan, and S. Borazjani. "Finite Element Modeling and Simulation of Machining of Titanium Alloy and H13 Tool Steel Using PCBN Tool." Applied Mechanics and Materials 392 (September 2013): 36–40. http://dx.doi.org/10.4028/www.scientific.net/amm.392.36.

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This paper deals with finite element modeling (FEM) and simulation of machining of titanium alloy and H-13 tool steel. Titanium alloys are very suitable for airframe manufacture and aircraft as H-13 uses forging dies and machined die casting. The machinability of both metals was evaluated by high temperature and tool wear. Finite element simulation was performed with ABAQUS explicit software to predict cutting temperature and stress distribution during metal cutting process. The purpose of this study was evaluation the performance of PCBN cutting tool material on machining of titanium alloy and H-13. It was found that PCBN tool can resistant well against high thermal shocks, high temperature and stress distribution when machining difficult to cut materials. The results can give a better understanding of cutting tool material for metal cutting process.

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Berger, B. S., I. Minis, Y. H. Chen, A. Chavali, and M. Rokni. "Attractor embedding in metal cutting." Journal of Sound and Vibration 184, no. 5 (August 1995): 936–42. http://dx.doi.org/10.1006/jsvi.1995.0355.

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Siddappa, P. N., B. P. Shivakumar, K. B. Yogesha, M. Mruthunjaya, and M. B. Hanamantraygouda. "Machinability study of Al-TiC metal matrix composite." MATEC Web of Conferences 144 (2018): 03001. http://dx.doi.org/10.1051/matecconf/201814403001.

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Aluminum Metal Matrix Composites have emerged as an advanced class of structural materials have a combination of different, superior properties compared to an unreinforced matrix, which can result in a number of service benefits such as increased strength, higher elastic moduli, higher service temperature, low CTE, improved wear resistance, high toughness, etc. The excellent mechanical properties of these materials together with weight saving makes them very attractive for a variety of engineering applications in aerospace, automotive, electronic industries, etc. Hence, these materials provide as alternative substitutes for conventional engineering materials when specific mechanical properties necessary for required applications. In this work an attempt is made to study the machining parameters of Al6061/TiC MMC. The composite is developed by reinforcing TiC particles in varying proportions of 3, 6, 9 and 12 % weight fractions to the Al6061 matric alloy through stir casting technique. Cutting forces were measured by varying cutting speed and feed rate with constant depth of cut for different % weight fractions. The results showed that the cutting force increases with the increase of feed rate and decreases with the increase of cutting speed for all the weight fractions. Cutting parameters were optimized using Taguchi technique.

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Sornakumar, T. "Advanced Ceramic-Ceramic Composite Tool Materials for Metal Cutting Applications." Key Engineering Materials 114 (September 1995): 173–88. http://dx.doi.org/10.4028/www.scientific.net/kem.114.173.

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Mukhopadhyay, A., and F. J. Kelecy. "Cutting Costs Prior to ‘Cutting Metal’ in the Nonwovens Industry." International Nonwovens Journal os-14, no. 1 (March 2005): 1558925005os—14. http://dx.doi.org/10.1177/1558925005os-1400102.

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As the North American nonwovens market has matured over the last ten years, computer-aided design, engineering and flow analysis have established themselves as effective engineering tools to complement and optimize traditional design, analysis and testing. This has lead to significant cost and time savings in the product life cycle. More specifically, these tools mainly impact pre-market activities, thus they reduce time-to-market and overall development expense. This paper demonstrates the successful use of computational fluid dynamics (CFD) tools to achieve cost-effective design analysis and optimization. Examples of airflow delivery systems (fan/blower design and jets/diffusers in spun bond process) and analysis of filter performance are shown

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Movahhedy,, M. R., Y. Altintas,, and M. S. Gadala,. "Numerical Analysis of Metal Cutting With Chamfered and Blunt Tools." Journal of Manufacturing Science and Engineering 124, no. 2 (April 29, 2002): 178–88. http://dx.doi.org/10.1115/1.1445147.

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In high speed machining of hard materials, tools with chamfered edge and materials resistant to diffusion wear are commonly used. In this paper, the influence of cutting edge geometry on the chip removal process is studied through numerical simulation of cutting with sharp, chamfered or blunt edges and with carbide and CBN tools. The analysis is based on the use of ALE finite element method for continuous chip formation process. Simulations include cutting with tools of different chamfer angles and cutting speeds. The study shows that a region of trapped material zone is formed under the chamfer and acts as the effective cutting edge of the tool, in accordance with experimental observations. While the chip formation process is not significantly affected by the presence of the chamfer, the cutting forces are increased. The effect of cutting speed on the process is also studied.

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Uhlmann, Eckart, Enrico Barth, Tobias Seifarth, Maximilian Höchel, Jörg Kuhnert, and Almut Eisenträger. "Simulation of metal cutting with cutting fluid using the Finite-Pointset-Method." Procedia CIRP 101 (2021): 98–101. http://dx.doi.org/10.1016/j.procir.2021.02.013.

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Ernotte, B., Ph Boeraeve, J. Dehard, J. Y. Sener, E. Bortolotti, and Ph Zieleman. "Joining of tubular structures with pre-cutting." Revue de Métallurgie 102, no. 9 (September 2005): 607–12. http://dx.doi.org/10.1051/metal:2005170.

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Vereschaka, A. A., and M. S. Migranov. "Study of Wear Resistance of Sintered Powder Tool Materials." Advanced Materials Research 871 (December 2013): 159–63. http://dx.doi.org/10.4028/www.scientific.net/amr.871.159.

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The purpose of the studies presented in this paper was to improve cutting properties of tool made of powder metal high-speed steel due to controlling the conditions of friction on contact areas of edgetools at cutting temperatures. Control of friction was carried out on the basis of alloying steel with 5% aluminum oxide (Al2O3), introducing 2% additive agent BN, and that allowed forming stable high-strength secondary structures, significantly extending the intervals of material self-organization. The use of both variants in alloying steel with 20% additive agent TiCN allowed significantly increasing lifetime of tool made of powder metal high-speed steel.

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Cao, Wenjun, Jun Zha, and Yaolong Chen. "Cutting Force Prediction and Experiment Verification of Paper Honeycomb Materials by Ultrasonic Vibration-Assisted Machining." Applied Sciences 10, no. 13 (July 7, 2020): 4676. http://dx.doi.org/10.3390/app10134676.

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The disc-cutter is a finishing tool for the ultrasonic-cutting of paper honeycomb-core material. The cutting state directly affects the machining accuracy and surface quality of the workpiece. The cutting force is an important physical quantity and the cause of ultrasonic cutting defects of the honeycomb-core material. Due to differences in the mechanical properties and cutting performance of honeycomb-core materials and commonly used metal materials, existing metal-cutting-force models cannot be applied to the calculation of ultrasonic cutting forces in the processing of honeycomb-core materials. In response to this problem—combined with actual working conditions using the ABAQUS finite element analysis software—a finite element simulation model of the ultrasonic vibration-assisted cutting force of the disc-cutter on the honeycomb-core material was established, and the cutting curves and values were obtained. The experiment of ultrasonic vibration cutting of the disc-cutter proves that from the surface morphology of the honeycomb core, the milling-width has the greatest influence on the cutting force, and the cutting-depth has the smallest influence on the cutting force. The maximum error between the cutting force experimental results and the finite element simulation results under the same cutting conditions was 13.2%, which means that the established cutting-force finite element model is more accurate and can be used to predict the cutting in honeycomb ultrasonic vibration-assisted cutting-force value. Finally, based on the response surface method, a three-dimensional cutting force prediction model of the ultrasonic cutting honeycomb core of the disc-cutter was established by using the simulation model data. The results of this study can provide a useful basis for the improvement of cutting performance and processing efficiency in the processing of paper honeycomb-core materials.

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Daicu, Raluca, and Gheorghe Oancea. "Electrical Current at Metal Cutting Process: A Literature Review." Applied Mechanics and Materials 808 (November 2015): 40–47. http://dx.doi.org/10.4028/www.scientific.net/amm.808.40.

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Processing metallic materials by cutting using good electricity conductor cutting edges it appears an electrical current due mainly to the temperature in the cutting zone. Analyzing of the electrical current the information about the unfolding mode of the cutting process can be obtained. The cutting electrical current can be used in several applications: the estimation of the temperature in the cutting zone, the estimation of the cutting forces, the identification of the wear state of the cutting edge etc. The first researches were started in Russia and they were based on the utilization of the cutting electrical current to measure the temperature in the cutting zone. Afterwards, other applications were identified in the literature and the researches were extended in other countries like India, Japan, USA, Brazil, France, Bangladesh and Romania. This paper presents a review of the researches about the electrical current which appears at cutting process.

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Kupczyk, Maciej Jan. "Properties of selected materials with non-stoichiometric compounds used for wear-resistant coatings." Mechanik 92, no. 11 (November 12, 2019): 751–53. http://dx.doi.org/10.17814/mechanik.2019.11.104.

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The article analyzes the influence of fill ratio of interstitial positions by nitrogen or carbon on technological and functional properties of transient metals of groups from IVb to VIb. In addition to literature data, the results of own comparative studies on the durability of cutting edges coated with transition metal nitrides with stoichiometric and non-stoichiometric composition are presented.

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Gao, Shi Long, Li Bao An, Xiao Chong Wang, and Song Gao. "Progress on Research of Machining of Difficult-to-Machine Materials Using CBN Cutting Tools." Applied Mechanics and Materials 723 (January 2015): 910–13. http://dx.doi.org/10.4028/www.scientific.net/amm.723.910.

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Some engineering materials have excellent performances, but the machining of these materials is a problem. It is very inadequate to meet machining requirement only using traditional cutting tool materials. Therefore, exploring the machinability of difficult-to-machine materials and applying appropriate cutting tool materials have drawn much attention in metal cutting industry for guarantied product quality and productivity. Cubic boron nitride (CBN) has been recognized as one of the most suitable cutting tool materials due to its high hardness, high wear resistance, high chemical inertness, and excellent chemical stability in high temperature. Research on various aspects of CBN cutting performances has been conducted in recent years. This paper presents the progress on machining difficult-to-machine materials using CBN cutting tools.

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Baek, Seung Yub. "Determination for Tool Edge Geometry and Cutting Conditions by Using FEM Simulations and Experiments." Applied Mechanics and Materials 378 (August 2013): 449–54. http://dx.doi.org/10.4028/www.scientific.net/amm.378.449.

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Hardened steel, Ni-based alloys and brittle materials are very difficult to machine using conventional cuttingmethods.A tool edge with a small nose radius can alleviate the regenerative chatter. In general, it is important for conventional cuttingto use the smallest possible tool nose radius. A sharp tool shape has an adverse effect on tool strength and the instability of machining process still occurs. A tool wear model with small nose radius proposed by past researchers is evaluated for predicting metal cutting tool wear when machining the copper. Tool temperature values are determined using finite element methods simulation. These temperatures are related to tool wear measured after metal cutting turning tests on a copper workpiece to determine tool edge geometry in low metal tool model.In this study, the effects of cutting conditions and tool edge geometry on process stability in turningare investigated through experiments and FEM simulations.

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Naveed, Nida. "Experimental study of the effects of wire EDM on the characteristics of ferritic steel, at a micro-scale on the contour cut surface." Metallurgical Research & Technology 115, no. 4 (2018): 413. http://dx.doi.org/10.1051/metal/2018032.

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This study, on a micro-scale, of the WEDM cut surfaces of specimens to which the contour method of residual stress measurement is being applied provides detailed information about the effects of the cutting process on the surface quality. This is defined by a combination of several parameters: variation in surface contour profile, sub-surface damage and surface texture. Measurements were taken at the start, the middle and at the end of the cut. This study shows that during WEDM cutting, a thin layer, extending to a depth of a few micrometres below the surface of the cut, is transformed. This layer is known as the recast layer. Using controlled-depth etching and X-ray diffraction, it is shown that this induces an additional tensile residual stress, parallel to the plane of the cut surface. The WEDM cut surface and sub-surface characteristics are also shown to vary along the length of the cut. Moreover, these micro-scale changes were compared with macro-scale residual stress results and provides an indication of the point at which the changes occurred by cutting process can be significantly relative to the macro-scale residual stress in a specimen.

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Fu, Tie, Qi Xun Yu, and Si Qin Pang. "Study and Application on CVD Diamond Tools." Key Engineering Materials 315-316 (July 2006): 720–24. http://dx.doi.org/10.4028/www.scientific.net/kem.315-316.720.

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Diamond film made by adopting the Chemical Vapor Deposition (CVD) technology is a promising superhard material. The mechanical and physical properties of CVD diamond is between natural diamond and hot press polycrystalline diamond. The cutting tools made by CVD diamond can machine many kinds of material, such as nonferrous metals, non metallic materials and composites. CVD diamond is classified as thin and thick films, and the thick film cutting tools are widely used. However, the superhard cutting tools cannot be applied to the cutting of iron family metal and molybdenum (Mo). In this paper, data and curves on machining test of CVD diamond cutting tools are listed and then analyzed.

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Fan, Ning, Yong Yu, and Yang Bai. "Experimental Cutting Force Properties on Interpenetrating Network Composites with Double Metal Phases." Applied Mechanics and Materials 680 (October 2014): 123–26. http://dx.doi.org/10.4028/www.scientific.net/amm.680.123.

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Cutting properties of interpenetrating network composites are important to ensure machining quality. The cutting force signals were measured by resistance strain gage of octagonal ring style and data acquisition and processing system. The results show that the cutting forces are affected by cutting conditions. To average cutting forces of interpenetrating network composites, the laws are basically consistent with that of the traditional materials. Because of the reinforced phase, the sudden cutting forces arise in cutting process whose values are relate to cutting parameters and reinforced phase dimensions.

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Petrovsky, E. A., K. A. Bashmur, and Vadim S. Tynchenko. "Impact of Nanodispersed Diamond Graphite Additive on Metal Cutting Temperature." Key Engineering Materials 887 (May 2021): 383–88. http://dx.doi.org/10.4028/www.scientific.net/kem.887.383.

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The present study describes the impact of cutting speed and various lubricant-cooling process agents on the temperature of alloy turning. The research was conducted for NiCr20TiAl and N07750 nickel alloys with the help of HG30 and HS123 carbide-tipped cutting tools. New lubricant-cooling process agents with nanodispersed diamond graphite additives are studied. The optimal composition of the diamond graphite additives is revealed when cutting these alloys. It is demonstrated on the basis of tests the positive effect of diamond graphite agents on the quantitative changes in measured cutting temperatures. In doing so, the cutting speed and the lubricant-cooling agents applied to the cutting zone have little impact on the nature of temperature patterns.

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Stephensen, D. A. "Material Characterization for Metal-Cutting Force Modeling." Journal of Engineering Materials and Technology 111, no. 2 (April 1, 1989): 210–19. http://dx.doi.org/10.1115/1.3226456.

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Widely applicable machining simulation programs require reliable cutting force estimates, which currently can be obtained only from process-dependent machinability databases. The greatest obstacle to developing a more basic, efficient approach is a lack of understanding of material yield and frictional behavior under the unique deformation and frictional conditions of cutting. This paper describes a systematic method of specifying yield stress and friction properties needed as inputs to process-independent cutting force models. Statistically designed end turning tests are used to generate cutting force and chip thickness data for a mild steel and an aluminum alloy over a wide range of cutting conditions. Empirical models are fit for the cutting force and model-independent material parameters such as the tool-chip friction coefficient and shear stress on the shear plane. Common material yield behavior assumptions are examined in light of correlations between these parameters. Results show no physically meaningful correlation between geometric shear stress and strain measures, a weak correlation between geometric stress and strain rate measures, and a strong correlation between material properties and input variables such as cutting speed and rake angle. An upper bound model is used to fit four- and five-parameter polynomial strain-rate sensitive constitutive equations to the data. Drilling torques calculated using this model and an empirical turning force model agree reasonably well with measured values for the same material combination, indicating that end turning test results can be used to estimate mean loads in a more complicated process.

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Peng, Hai, and Ya Fei Wang. "Test and Analysis of Low Temperature Air Cutting Performance to Difficult-to-Machine Materials." Key Engineering Materials 667 (October 2015): 155–61. http://dx.doi.org/10.4028/www.scientific.net/kem.667.155.

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This paper mainly analyzes the cutting mechanism of low temperature air cutting, and makes research and analysis about the brittle characteristics, the lubricate mechanism and the chip breaking mechanisms of metal materials under low temperature cold condition. Meanwhile, the cutting performance of typical difficult-to-machine materials, such as The precipitation stainless steel, super-alloy and titanium alloy, were discussed. Through cutting experiment under normal conditions and low temperature air conditions, the influence on cutting force, tool wear, chip shape and surface processing quality of typical difficult-to-machine materials were analyzed. The experimental results show that the low temperature air has better effects on cutting difficult-to-machine materials. It can reduce temperature distribution and cutting force, improve tool life and suface processing quality, decrease the use of cutting fluid and mitigate environmental pollution. Thus, low temperature air cutting is an efficient and environment friendly way to solve the problem of cutting difficult-to-machine materials.

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Wu, Xiangyu, Liang-pin Wu, Jian-bo Xie, Ping Shen, and Jian-xun Fu. "Modification of sulfide by Te in Y1Cr13 free-cutting stainless steel." Metallurgical Research & Technology 117, no. 1 (2020): 107. http://dx.doi.org/10.1051/metal/2019070.

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Te is an alloy element which is capable of improving the morphology of sulfide in free-cutting steel. In this paper, the effect of modification and mechanism of action of Te on sulfide was studied by addition of various Te masses to the Y1Cr13 free-cutting stainless steel. The results revealed that the typical sulfide in Y1Cr13 was MnS, and when Te content exceeded 170 ppm, it was transformed into a solid solution and precipitated as MnTe in Te–Mn–S solution. The solid solution of Te in MnS coarsened MnS and improved its hardness. The precipitated MnTe enveloped MnS and absorbed the rolling stress in high temperature. Both forms of Te improved the morphology of MnS, promoted the transition from type II to type I and III as the Te content increased. The effect of the modification was good, and it was mainly ascribed to the precipitation of MnTe.

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Neugebauer, Reimund, Verena Kräusel, and Alexander Graf. "Process Chains for Fibre Metal Laminates." Advanced Materials Research 1018 (September 2014): 285–92. http://dx.doi.org/10.4028/www.scientific.net/amr.1018.285.

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The combination of fibre-reinforced materials with metals is defined as a fibre metal laminate. These material composites have already been a subject of research for several years. The long manufacturing time resulting from the period required for consolidation of the thermosetting resin is a major disadvantage of the fibre metal laminates previously in use (for instance GLARE, which is a combination of aluminium with glass fibre-reinforced plastic). In this paper, a new fibre metal laminate with a thermoplastic resin in the carbon fibre-reinforced plastics (CFRP) is introduced. The application of a thermoplastic resin system results in a general change in the process chain. The cutting of fibre metal laminates by means of the flexible water jet and laser cutting techniques is presented. In the second operation, forming behaviour is represented by the methods of v-bending and deep drawing. Finally, quality assurance by means of computed tomography, which replaces the conventional metallographic method, is described.

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Groche, P., P. Stein, D. Übelacker, F. Neumayer, and F. Steinbach. "Trockenscherschneiden von Verbundblechen*/Lubricant free shear cutting of polymer-metal composites - Important process parameters on the cutting surface geometries." wt Werkstattstechnik online 105, no. 10 (2015): 733–37. http://dx.doi.org/10.37544/1436-4980-2015-10-69.

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Verbundbleche, bestehend aus Metall- und Polymerschichten, haben ein hohes Anwendungspotential. Je nach Schichtaufbau liegen die Vorteile im Bereich des Korrosionsschutzes, des Leichtbaus sowie der Geräuschdämmung. Um das Potential dieser Materialien zu nutzen, müssen die Parameter konventioneller Fertigungsverfahren angepasst werden. Der Fachbeitrag beschreibt den Einfluss wichtiger Parameter auf die Schnittgüte beim Scherschneiden.   Composite sheets, consisting of sheet metals and polymer layers, have high application potential. Depending on the used layers they can be used as corrosion protection, lightweight or sound insulation materials. To exploit the advantages of these materials the parameters of conventional manufacturing processes have to be adapted. In this publication the influence of important parameters on the shear cutting quality is explained.

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Grzesik, Wit, and Joel Rech. "Methods and devices for measuring metal cutting friction and wear." Mechanik 92, no. 2 (February 11, 2019): 85–89. http://dx.doi.org/10.17814/mechanik.2019.2.16.

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This paper presents different constructions of tribometers for determination of friction and tool wear developed in the cutting zone between the cutting tool and the workpiece materials. They are classified as the closed and open tribotesters. Relevant measuring techniques of various process outputs such as cutting forces, tool wear, cutting temperature and heat flux entering the contact surface of the rubbing element are outlined. Some limitations and practical applications are highlighted.

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Altan, L., D. Lenz, T. Hasselbusch, and J. E. Förster. "Qualität schergeschnittener MKV-Bleche*/Quality of sheared metal-plastic composite sheets. Influence of the cutting parameters on mechanical component properties of metal-plastic composites." wt Werkstattstechnik online 109, no. 10 (2019): 755–64. http://dx.doi.org/10.37544/1436-4980-2019-10-59.

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Metall-Kunststoff-Verbunde (MKV) sind eine innovative Werkstoffklasse, mit der insbesondere im Bereich des Kraft- und Schienenfahrzeugbaus eine signifikante Gewichtseinsparung erzielt werden kann. Das Scherschneiden als trennendes Fertigungsverfahren erlaubt eine hohe Ausbringungsrate bei geringen bauteilbezogenen Kosten. In diesem Beitrag wird der Einfluss der durch Scherschneiden erzeugten Schnittflächen von MKV auf eine nachfolgende Bauteilbeanspruchung vorgestellt.   Metal-plastic composites (MKV) are an innovative class of materials by means of which a significant weight saving can be achieved, in particular in the area of power and rail vehicle construction. Shear cutting as a separating manufacturing process enables a high output rate with low component-related costs. This article presents the influence of cutting edges produced by shear cutting of MKV on a subsequent component stress.

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Journal articles on the topic 'Cutting of metal materials'

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