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Shear thickening polishing (STP), an emerging polishing method, is used to polish the cemented carbide insert with complex shape in this study. The principle and performance of STP were introduced. Four parameters having significant influence on the STP process, including polishing speed, abrasive concentration, abrasive size, and …
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Cemented carbide is, in its simplest form, a metal-matrix composite of tungsten carbide particles in a cobalt matrix. This article describes the microstructure, physical, and …
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A cemented carbide is a cemented carbide material composed of refractory metal carbides (WC, TiC, etc.) and metal binders (Co, Ni, Mo, etc.) []; it has attracted wide attention due to its high hardness, fracture toughness, superior thermal conductivity, and wear resistance [2,3,4,5].Among them, WC–Co cemented carbides …
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DOI: 10.1016/J.APSUSC.2017.07.160 Corpus ID: 136387289; Smooth polishing of femtosecond laser induced craters on cemented carbide by ultrasonic vibration method @article{Wang2017SmoothPO, title={Smooth polishing of femtosecond laser induced craters on cemented carbide by ultrasonic vibration method}, author={Hua …
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This chapter deals with selected properties of cemented carbides and their testing. It consists of three main sub-chapters. The first one covers the degradation processes associated with grinding of cemented carbides. Among those, the focus is on the effects of thermal loads and reactions with the environment—the atmosphere. The …
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Cemented carbide is a general name of alloy prepared by powder metallurgy from 9 kinds of metal carbides of IVa, Va and VIa groups in the periodic table of elements and iron group metals such as Fe, Co and Ni.. The carbide phase makes the alloy have high hardness and wear resistance, while the bonding phase endows the …
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Methods of modeling mechanical properties of and degradation processes in cemented carbides are described. Methods and results of modeling of the stress distribution in cemented carbide articles based on the Finite Element Analysis or Finite Element Method are reported with respect to different applications of carbide articles and tools.
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Cemented carbides are composite materials consisting of a hard phase, tungsten carbide, and a ductile phase, cobalt-based binder. Because of the unique …
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Cemented Carbide is just that: an alloy. It is not a natural metal, but rather a man-made metal. It is made up of tungsten carbide (WC) and cobalt (Co). Tungsten carbide has a high melting point (2900℃), and will not melt like iron.
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The cemented carbides are a range of powder-metallurgical composite materials, which consist of hard carbide particles bonded together by a metallic binder ( Hard Materials 2012).The proportion of carbide phase is generally between 70% and 97% of the total weight of the composite and its grain size averages between 0.4 …
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polishing (CMP). Brush polishing method [16], which is a traditional method for cemented carbide inserts, will cause different microscopic defects (i.e., tiny tipping and saw notch). Puoza [17] studied the effect of abrasive water-jet polishing (AWJT) on the surface of cemented carbide tool. A better-polished surface of the cemented carbide ...
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Zhang and Jiao [16] applied LUAT method to process cemented carbide, and the wear mechanism of LUAT of cemented carbide using polycrystalline diamond (PCD) tools was studied in depth, and it was found that LUAT has significant advantages in reducing cutting force and improving tool life. Although LUAT has been successfully …
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In this paper, a novel finite element method for the wear analysis of cemented carbide tool during high-speed cutting Ti6Al4V alloy was proposed. The high-speed cutting tests were carried out on Ti6Al4V to verify the tool wear prediction FEM model. The main conclusions are as follows: (1)
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This paper presents a method based on finite element method (FEM) for studying the hardness of carbide tools. The microstructure of the carbide tool is obtained by scanning electron microscope(SEM). ... The hardness values of cemented carbide tools are then calculated by the traditional method, Oliver-Pharr (OP) method and …
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1. Introduction. Tungsten carbide-cobalt (WC–Co) cemented carbides, composed of tungsten carbide as the hard phase and cobalt as the binder phase, are extensively applied as primary materials in mechanical machining tools, rock drilling tool drill bit components, and wear-resistant parts [[1], [2], [3]].This is attributed to their …
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The cemented carbides are a range of powder-metallurgical composite materials, which consist of hard carbide particles bonded together by a metallic binder …
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Reasonable cutting edge preparation can eliminate microscopic defects and improve the performance of a cutting tool. The flexible fiber-assisted shear thickening polishing method was used for the preparation of cemented carbide insert cutting edge. The influences of the polishing angle and polishing speed on the cutting edge …
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Cemented carbides are a range of composite materials which consist of hard carbide particles bonded together by a metallic binder. The proportion of carbide phase …
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Surface micro-texture has been shown to enhance wettability and reduce wear on cutting tools. However, there is limited research on how laser parameters impact the dimensional accuracy of surface texture and its wettability. This study focuses on producing arrayed groove textures on WC/Co cemented carbide surfaces using Nd: …
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Cemented carbide 91 wt% WC–3 wt% TiC–6 wt% Co was sintered by spark plasma sintering at different temperatures of 1200 °C, 1300 °C, and 1400 °C and the effect of sintering temperature on the microstructure and properties of this type of composites, such as total density, apparent density, hardness, and fracture surface were measured …
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3.1.1 Most commercial cemented carbides have mechanical behavior that is best classified as brittle (negligible ductility). Fracture strengths are dependent on internal or surface flaws. Examples of incoherent internal flaws are macropores, Type B porosity (see Test Method B276), and inclusions of foreign particles.Such flaws are randomly …
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In order to further improve the comprehensive properties of WC–Co cemented carbide with low binder phase content, in this work, a series of WC–6Co cemented carbides with different SiC additions are prepared using SiC as the additive and sintered at 1400 °C for 5 min by Spark Plasma Sintering technology. Meanwhile, the …
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Functionally graded or functionally gradient WC–Co cemented carbides with Co and/or hardness gradients can potentially have great practical importance. In this article is described a novel sintering technique for fabrication of functionally gradient WC–Co cemented carbides. This technique includes (1) employing green carbide …
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By combining this measurement method with Computer Aided Engineering (CAE) analysis method using the finite element method (FEM), we attempted to determine the temperature distribution in the tool and to quantify the generated thermal stress. ... Coated cemented carbide is used in continuous or slightly intermittent turning but has a …
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For example, for large flat cemented carbide parts, CMP method is suitable. For cemented carbide tools with complex shape and high precision, abrasive …
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Cemented carbide, also known as hard alloy, is a series of materials prepared by powder metallurgy method in which a bonding metal is combined with hard refractory materials. In cemented carbides, the hard carbides perform as the strengthen phases while the iron group elements (nickel, cobalt, iron) are utilized as binding phases …
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Cemented tungsten carbide is the finest cutting material predominantly for the extreme environmental conditions in different applications. High compressive strength, high hardness, outstanding toughness, and especially red hardness properties (retains its hardness values at high temperatures) are useful for the metal-cutting and mining …
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Cemented carbide recycling methods are classified into three categories: (1) direct, (2) indirect and (3) semi-direct. The direct methods have advantages of high recoveries, good quality powders' production and good grain size control. These methods, however, suffer from incomplete separation of metal carbides from the binding material ...
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Cemented carbide has been widely applied in the manufacturing industry due to the excellent wear resistance and corrosion resistance. As a typical difficult-to-machine material, it faces many challenges such as surface damage and tool wear in traditional machining. Therefore, many non-traditional machining methods based on …
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@article{Katiyar2020ACR, title={A comprehensive review on recycling methods for cemented tungsten carbide scraps highlighting the electrochemical techniques}, author={Prvan Kumar Katiyar and Navneet Singh Randhawa}, journal={International Journal of Refractory Metals & Hard Materials}, year={2020}, …
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