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Dissertations / Theses on the topic 'Tool Carbide'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Larsson, Johanna Meseret Berhe. "Influence of tool steel carbide orientation on sliding wear." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-27205.

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For SMF industry, galling of tool in SMF operation during forming of stainless steel is a major concern, this increase the interest to study influence of tool microstructure on galling. In the present work, ingot cast AISI D2 were evaluated concerning wear mechanisms and critical sliding distance against austenitic stainless steel sheet in lubricated sliding condition at different contact pressures using a slider-on-flat-surface (SOFS) tribometer for carbide phases oriented in three different directions. At the initial sliding abrasive scratching by protruding carbide phases were the initial w

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2

Okeke, Christopher Igwedinma. "Threading and turning of aerospace materials with coated carbide inserts." Thesis, London South Bank University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297919.

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The first part of this study involve an evaluation of the performance of TiN and AlZ03 single layer coated cemented carbide tools when threading inclusion modified, 708M40T (En 19T) 817M40T (En 24T) and Jethete steels at high cutting conditions by monitoring tool wear, failure modes, post threading workpiece properties, micro and macro-surface alterations and subsurface microhardness variation of threaded surfaces. Test results show that flank wear was the dominant failure mode, increasing rapidly when machining at the top speed of 225 m min,l due to the high temperature generated which accele

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3

Ngoc, Anh Giang [Verfasser]. "Multi-scale Model for Fatigue in Carbide-rich Tool Steel / Giang Ngoc Anh." Aachen : Shaker, 2015. http://d-nb.info/1080763902/34.

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4

Lewus, Michael O. "Chemically vapour deposited titanium carbide coatings on high speed steel cutting tool inserts." Thesis, Loughborough University, 1987. https://dspace.lboro.ac.uk/2134/7276.

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A detailed study has been made of titanium carbide (TiC) coatings chemically vapour deposited on powder metallurgy (PM) BT42 grade high speed steel (HSS) indexable cutting tool inserts, in collaboration with Edgar Allen Tools, Sheffield. Initially, the characteristics of a TiC coating deposited under the standard conditions employed by Edgar Allen Tools were determined, both before and after the obligatory HSS substrate heat treatment. This was done using various techniques including x-ray diffraction, scanning electron microscopy, micro-hardness testing, profilometry, optical microscopy and s

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5

Jacobs, Jessica. "Effect of post-treatment of cemented carbide : Microstructural investigation and evaluation of mechanical properties of cemented carbide inserts for rock tool applications." Thesis, Karlstads universitet, Avdelningen för maskin- och materialteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-84628.

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Cemented carbides are used in rock tool applications by reason of their beneficial mechanical properties, i.e. a combination of high toughness, wear resistance and hardness. The cemented carbides commonly receive their hardness from tungsten carbides (WC) whereas cobalt (Co) is the dominating binder material. To obtain a beneficial balance of these desired properties, the binder phase can be strengthened by post-sintering treatment to minimize the risk of catastrophic failure. Previous work has shown that the face centered cubic (FCC) cobalt phase is stabilized by a higher degree of dissolved

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6

Rey, Tomas. "Investigation of Microstructure and Mechanical Properties in Hot-work Tool Steels." Thesis, KTH, Materialvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210699.

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Hot-work tool steels make up an important group of steels that are able to perform with good strength and toughness properties at elevated temperatures and stresses. They are able to gain this behavior through their alloy composition and heat treatment, which relies on the precipitation of alloy carbides to counter the loss in strength as the tempered material becomes more ductile. As demand grows for materials that are suitable for even harsher applications and that show improved mechanical qualities, the steel industry must continuously investigate the development of new steel grades. Within

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7

Randelius, Mats. "Influence of microstructure on fatigue and ductility properties of tool steels." Licentiate thesis, Stockholm : Materialvetenskap, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4624.

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8

Trueman, Anthony Roger. "Characterization and corrosion studies of high carbon tool steel/tungsten carbide metal matrix composites." Thesis, Queensland University of Technology, 1999.

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9

Milani, Mauro. "Optimization of the pressing process of triangular shaped cutting tool inserts." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-58282.

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Pressing of metallic powders is a manufacturing process widely investigated in the research field and in the industry. This thesis project is focused on optimizing the pressing process of cemented carbide powder utilized for the production of triangular shaped cutting tool inserts. In particular, the filling of powder into the die cavity was investigated with respect to different pressing parameters. The aim of the project was to obtain a uniform density distribution of the powder into the die cavity, and hence to reduce the variation of the height of the insert obtaining more precise dimensio

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10

Joshi, Kunal J. "OPTIMIZATION OF CUTTING CONDITIONS FOR SUSTAINABLE MACHINING OF SINTERED POWDER METAL STEELS USING PCBN AND CARBIDE TOOLS." UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_theses/379.

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Powder metals are becoming a popular choice in the automotive and other manufacturing industries because of their ability to meet wide ranging product functional requirements without compromising the performance of the product. They offer various advantages, including weight reduction, near net-shape processing capability, and their ability to be sintered to achieve desired properties in the end-product. However, in order to satisfy the product design requirements during manufacturing, they need to be machined to the required tolerances. Machining of powder metals is quite different to machini

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11

Hedberg, Petra. "Method to assess machinability of engineering steels using coated carbide tools." Thesis, Uppsala universitet, Tillämpad materialvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-442898.

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In this master thesis, performed at Ovako Group R&D (Hofors) a new machining test method for ranking heats of calcium-treated steels, M-Steels, has been proposed. A total of six different heats of 42CrMo4-M steel in the quenched-and-tempered (Q+T) condition were tested. The proposed method uses dry turning with coated cemented carbide tools at a cutting speed of 225 m/min, 2 mm depth of cut, and a feed rate of 0.35 rev/min. The machining test is tuned so that M-Steels within medium-sized bar diameters and a small hardness interval can be differentiated by monitoring the flank wear progres

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Strahin, Brandon L. "The Effect of Engineered Surfaces on the Mechanical Properties of Tool Steels Used for Industrial Cutting Tools." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1506692623324192.

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13

Giang, Ngoc Anh [Verfasser], Christoph [Akademischer Betreuer] Broeckmann, and Dieter [Akademischer Betreuer] Weichert. "Multi-scale model for fatigue in carbide rich tool steel / Ngoc Anh Giang ; Christoph Broeckmann, Dieter Weichert." Aachen : Universitätsbibliothek der RWTH Aachen, 2015. http://d-nb.info/1127599208/34.

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14

Andersson, Oscar. "Influence of primary precipitate shape, size volume fraction and distribution in PM tool steels on galling resistance." Thesis, Karlstads universitet, Institutionen för ingenjörsvetenskap och fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-37813.

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In sheet metal forming (SMF), the major failure reason is galling. Galling is a process of different wear stages that leads to destruction of both the forming tool and the sheet metal working piece and is, because of that, of big economic importance for the SMF industries. Therefore, investigations and researches about how tool steels microstructure affect the tool steels galling resistance is of high priority. In the present work, different carbide properties were studied to find out how their properties affected the tool materials galling resistance. The investigated carbide properties were:

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15

Vargas, Alexandro. "Machinability Study on Silicon Carbide Particle-Reinforced Aluminum Alloy Composite with CVD Diamond Coated Tools." Scholarly Commons, 2017. https://scholarlycommons.pacific.edu/uop_etds/215.

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Particle-reinforced MMCs (pMMC) such as aluminum alloys reinforced with ceramic silicon carbide particles (AlSiC) require special cutting tools due to the high hardness and abrasive properties of the ceramic particles. Diamond coated cutting tools are ideal for machining this type of pMMC. Previous research studies focus on the machinability of pMMCs with low ceramic content. The aim of this research is to determine the optimal cutting parameters for machining AlSiC material containing high silicon carbide particle reinforcement (>25%). The optimal cutting parameters are determined by investig

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Cao, Deming. "Investigation of Acoustic Emission and Surface Treatment to Improve Tool Materials and Metal Forming Process." University of Dayton / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1281359461.

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17

Dhulubulu, Aditya. "Acoustic Emission (AE) monitoring of the milling process with coated metal carbide inserts using TRIM C270 cutting fluid." University of Toledo / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1435592338.

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18

Zdařil, David. "Technologie výroby vybraného sortimentu nástrojů s aplikací vysoce produktivního výrobního zařízení." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417150.

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The aim of this work is to analyze the issue of providing cutting tools for internal use in the company STERCH-INTERNATIONAL s.r.o. It is mainly the production and regrinding of end mills and drills for specific machining applications, whose benefit lies in increased efficiency and flexibility of production, which also brings a significant cost reduction.

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Rusz, Radek. "Technologie výroby kombinovaných řezných nástrojů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230013.

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In the thesis is solved manufacturing technology of step drill from material of cemented carbide. At first is made review of existing shank cutting tool types, after that follows an analysis of cemented carbide tool material. In the next part of thesis is manufacturing technology of this tool, including review of grinding wheels, designed. Output of this work is procedure of program designing for manufacturing this tool in software Numroto. Next output is techno-economic evaluation of step hole manufacture with combined tool and comparison to conventional type of manufacture.

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Prno, Peter. "Obrábění kobaltové slitiny UmCo50." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444280.

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The diploma thesis deals with the topic of machinability of materials. The theoretical part describes the aspects according to which machinability can be evaluated. The material side of the thesis is focused on various types of difficult-to-machine materials. The cobalt alloy UmCo50 belongs to the group of difficult-to-machine materials and it is the subject of the experimental part. UmCo50 is an alloy for high temperature use. The primary aim of the thesis was to monitor the wear of the selected cutting tool when turning this alloy. Other aspects of the selected machining process were also mo

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Kondo, Marcel Yuzo. "Análise do processo de torneamento da superliga Vat 32® com ferramentas de corte experimentais e comerciais /." Guaratinguetá, 2019. http://hdl.handle.net/11449/182500.

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Orientador: Manoel Cleber de Sampaio Alves<br>Resumo: A superliga de níquel VAT 32® foi desenvolvida como um substituto da liga UNS N07751 (Inconel 151) na fabricação de válvulas automotivas para motores de combustão interna de alto desempenho. A formação de carbonetos de nióbio confere a esta liga elevada resistência ao desgaste, desejada na aplicação em válvulas automotivas, criando-se, porém, uma maior dificuldade na usinagem deste material. Este trabalho estudou o torneamento da liga VAT 32® com quatro tipos de ferramentas de corte. São elas insertos de metal duro com diferentes revestimen

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22

Torkaman, Hamid. "Modeling and Analysis of the Shot Peening Process : a Study of the Residual Stresses in an Insert using the Finite Element Method." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-77322.

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Cutting tool inserts are often coated with thin layers either through chemical vapor deposition (CVD) or physical vapor deposition (PVD) processes. In order to have a better wear resistance cutting tools are mostly subjected to post-coating treatment processes. Shot peening is one of the processes that is used to improve the fatigue life of metallic components. In this study, the finite element (FE) method is employed to model the elastic-plastic deformation and development of residual stress distributions in a cutting tool after the impact of a shot medium. To carry out the work, CVD coated c

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23

Tamil, Alagan Nageswaran. "Textured insert for improved heat extraction in combination with high-pressure cooling in turning of superalloys." Licentiate thesis, Högskolan Väst, Avdelningen för avverkande och additativa tillverkningsprocesser (AAT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-11738.

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Heat generated in a machining process is a common and critical obstacle faced in today's machining industries. The heat generated in the cutting zone has a direct negative influence on the tool life which, in turn contributes to increase the manufacturing costs. Especially, in machining of Heat Resistant Super Alloys, HRSA this is a very limiting factor. HRSA are capable of retaining their mechanical strength and hardness at elevated temperatures. This property is advantageous in the application in e.g. aero-engines but also a disadvantage, since it also lowers the machinability significantly.

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24

Chakraborty, Pinaki. "Tool Life and Flank Wear Modeling of Physical Vapour Deposited TiAlN/TiN Multilayer Coated Carbide End Mill Inserts when Machining 4340 Steel Under Dry and Semi-Dry Cutting Conditions." Scholarly Repository, 2008. http://scholarlyrepository.miami.edu/oa_dissertations/22.

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This study investigates the tool wear of advanced PVD TiALN/TiN multilayer coated end mill inserts when dry and semi-dry machining 4340 low alloy medium carbon steel. A factorial design of experiment setup consisting of two levels of speed, three levels of feed, two levels of depth of cut, and two levels of cutting conditions (semi-dry and dry) was used for the study. The combination of cutting conditions that gave the best response for different components of cutting force, cutting power, surface roughness and tool life were determined using MANOVA & ANOVA analysis and Tukey comparison of mea

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25

Bamford, Erik. "Tool wear in turning of titanium alloy Ti–6Al–4V : Challenges and potential solutions for crater wear, diffusion and chip formation." Thesis, Uppsala universitet, Tillämpad materialvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-306373.

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Titanium alloys are major materials used in the airplane industry, and prospects show that airplane production will double in the next 20 years. Consequently, the demand for cutting tools for machining of titanium alloys will increase. The primary problem when machining titanium alloys is their low thermal conductivity. Crater wear is the main factor limiting tool life, and is generally caused by thermal diffusion due to high temperatures in the tool-chip interface. This master’s thesis was performed in collaboration with Sandvik Coromant, with the prospect to increase knowledge of how diffusi

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Štefek, Jaromír. "Moderní řezné nástroje ze slinutých karbidů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228932.

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This thesis deals with modern cutting cemented carbide tools. In the first section are stated several basic innovations already used tools for basic machining operations, which is turning, milling and drilling. It continues with analysis of single materials for production of cemented carbides, non coated as well as coated and with comparing of their properties. There are listed the basic cutting properties of the cutting tools after that. The penultimate point of the work is optimization of the basic machining operations, namely roughing and finishing, for a given application, which is in this

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Pinheiro, Cleverson. "Avaliação da usinagem do inconel 718 via metodologia de Taguchi /." Guaratinguetá, 2018. http://hdl.handle.net/11449/154790.

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Orientador: Marcos Valério Ribeiro<br>Resumo: Apesar de ser amplamente utilizado em componentes aeroespaciais, o Inconel 718 apresenta algumas características que dificultam a sua usinagem: dureza elevada, resistência em altas temperaturas, forte afinidade para reagir com materiais de ferramentas e baixa condutividade térmica. Além do mais, esta liga possui tendência para a formação da aresta postiça de corte, endurecimento por deformação, assim como efeito abrasivo de carbonetos e fases intermetálicas, que resultam em tensões mecânicas e térmicas elevadas na aresta de corte. A qualidade de ac

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Strolia, Vaidas. "Kietlydynio peilio patvarumo tyrimai aušinant tepimo ir aušinimo skysčiu su skystųjų kristalų priedais." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100622_150520-52295.

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Baigiamajame magistro darbe ištirta skystųjų kristalų (cholesterolio stearatas) priedų prie tepimo ir aušinimo skysčio (TAS) įtaka kietlydynio peilio nudilimui ir apdirbto paviršiaus šiurkštumui tekinimo operacijoje. Ištirtas sriegiklio pasipriešinimo momento kitimas sriegiant skyles rankiniais sriegikliais, kai sriegikliai tepami skystaisiais kristalais ir konsistentiniu tepalu. Paviršiaus šiurkštumo tyrimai buvo atlikti tekinant 45 plieninį strypą: pastūma – 0,1 mm/aps., pjovimo greitis buvo keičiamas nuo 85 iki 267 m/min, o cholesterolio stearato kristalų koncentracija emulsijoje – nuo 0,1

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Vopařil, Josef. "Moderní řezné nástroje ze slinutých karbidů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228549.

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This thesis is focused on cutting tools made of cemented carbides. It contains analysis of cemented carbides for uncoated and coated cutting tools. It contains examples of modern tools for turning, milling and drilling. Practical part of this thesis evaluates and compares cutting properties of two types of spiral drills.

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Залога, Вільям Олександрович, Вильям Александрович Залога, Viliam Oleksandrovych Zaloha та ін. "Нормативне забезпечення неруйнівного експрес-методу оцінювання якості лез різального інструменту". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/66758.

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Відомо, що на сучасному етапі розвитку промислового виробництва у зв’язку з суттєвим збільшенням номенклатури виробів та зменшенням їх у кількості у партіях, що замовляються, стає нераціональним виготовлення різальних інструментів й інструментального оснащення «своїми» силами, у результаті чого у теперішній час суттєво зросла питома вага покупних інструментів та оснащення, виготовлених спеціалізованими виробництвами (фірмами).

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Andersson, Niklas. "Modelling of metal removal rate in titanium alloy milling." Thesis, Högskolan i Gävle, Maskinteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-27011.

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Titanium is one of fourth most abundant structural metal in earths soil. It is in a composition with other elements, forming titanium alloys. These alloys are used in many different areas, such as medical, energy and sports, but is most commonly used in aerospace applications. Titanium alloys have different solid phases, α, α+β and β depending on temperature and the amount of α and β-stabilizers.When machining titanium alloys, one of the most important factors to control is the temperature in the cutting zone. The built-up heat in the cutting edge of the tool, are connected to titanium alloys

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Zhang, Xi-Yang. "Performance of carbide and coated carbide tipped circular sawblades." Thesis, Sheffield Hallam University, 1995. http://shura.shu.ac.uk/20582/.

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Published work concerning the performance of coated and uncoated carbide tipped circular saw blades has been searched and reviewed. The search has shown that little similar experiments on the carbide tipped circular saw blades have been conducted. Furthermore the evidence shows that no work has been published on the application of coatings to the carbide tipped circular saw blades. Finite element analysis has been widely applied to the cutting process, but the application of finite element methods to the carbide tipped circular saw blade is still a new area of research. In this investigation t

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Meliani, Hasnaa. "Fonctionnalisation d'outils de décolletage de précision par micro-structuration de surface." Thesis, Bourgogne Franche-Comté, 2020. http://www.theses.fr/2020UBFCD022.

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L’usure des outils de coupe représente un problème majeur qui compromet la productivité et la capacité à réaliser des pièces de haute qualité. L’objectif de ces travaux de thèse est d’améliorer la durée de vie des outils coupants en carbure de tungstène, revêtus ou non, et destinés à l’usinage de l’acier inoxydable et de l’aluminium. La méthode de fonctionnalisation adoptée est la structuration de surface par laser femtoseconde.Dans un premier temps, une étude expérimentale qui traite de l’interaction entre le laser et le carbure de tungstène a été réalisée. Pour la première fois, tous les par

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Kudrna, Tomáš. "Elektroerozivní hloubení technické keramiky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417445.

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The master’s thesis deals with the topic of electrical discharge machining. The first part of the thesis contains a study of the die-sinking EDM. The die-sinking EDM of the silicon carbide ceramic is realized in the experimental part of the thesis. The result of this work was to explore the influence of the EDM sinking parameters, specifically pulse current, open-voltage and pulse on-time, on the machined surface. Furthermore, the analysis of the tool electrode was made. This analysis was focused on the wear in the corners, which has key influence on accuracy of the machining. The machining ti

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Bell, Stephen Brooke. "The deformation of carbide cutting tools." Thesis, Durham University, 1988. http://etheses.dur.ac.uk/6449/.

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Under certain cutting conditions carbide tools can sustain a significant amount of permanent deformation and this may cause early tool failure. Tests were devised to investigate the deformation of three different grades of carbide, when machining steel (817M40, EN24) under a wide range of conditions. Each test was carried out on a continuous (60 seconds) and an incremental (5, 5, 10, 20 and 20 seconds) basis. This plan was adopted to investigate transient effects. During each test the cutting forces were measured with a dynamometer, and the boundary temperatures were measured at the tool/chip

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Öhman, Sebastian. "Wear on Alumina Coated Tools and the Influence of Inclusions when Turning Low-Alloy Steels : Master Thesis - Chemical Engineering." Thesis, Uppsala universitet, Tillämpad materialvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-302956.

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In this master thesis, performed at Sandvik Coromant Västberga (Stockholm), a comprehensive study has been made to investigate the wear on textured alumina (Inveio™) coated cutting tools when turning low-alloy steels. Specifically, wear studies have been made on tools’ rake faces when turning two separate batches of SS2541, after an initial turning time of 4 min. A particular focus has been given to elucidate what particular role the inclusions might have for the wear of the alumina coating onthe tools. Evaluation of tool wear has been made by employing several different analytical techniques,

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Ferrer, Jorge Antonio Giles. "Uma contribuição ao fresamento frontal de superficies irregulares de ferro fundido cinzento." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265593.

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Orientador: Anselmo Eduardo Diniz<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-07T19:18:36Z (GMT). No. of bitstreams: 1 Ferrer_JorgeAntonioGiles_D.pdf: 4540427 bytes, checksum: 047f6383d5c609fa0233000c16e0843b (MD5) Previous issue date: 2006<br>Resumo: A maior parte dos estudos sobre o processo de fresamento frontal aborda a usinagem de superfícies planas sem descontinuidades, o que na prática dificilmente acontece. Normalmente existem superfícies interrompidas com furos, superfícies estreitas que são usinada

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Malmborg, Malin, and Magnolia Tibaduiza. "Skäreggprepareringens påverkan på slitage hos hårdmetallborrar : En fallstudie enligt DMAIC på Scania Motorbearbetning." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79899.

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Den ökande efterfrågan på högre produktkvalitet inom tillverkningsindustrin kräver hög stabilitet och lång livslängd på borrverktyg under borrningbearbetningsprocessen. En metod för att öka produktkvaliteten och därmed förlänga livslängden på borrverktyg är skäreggpreparering. Skäreggpreparering används för att skapa en kantgeometri som ger borrverktyget både en bättre styrka och högre tålighet mot slitage. Det mest förekommande slitaget på borrverktyg är fasförslitning och det utvecklas snabbt under den initiala slitningsperioden under borrens livslängd. Syftet med det här examensarbetet var

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Agode, Kofi Edoh. "Analyse et modélisation du comportement à l’usure des outils de coupe en carbure de tungstène pour différentes teneurs en cobalt lors de l’usinage de l’alliage de titane Ti-6Al-4V." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0141.

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En raison de sa grande dureté et sa résistance à l'usure, le carbure de tungstène avec liant cobalt (WC-Co) est le matériau incontournable pour la fabrication des outils d’usinage, des outillages de découpe et de formage, ainsi que des pièces d'usure nécessitant une dureté importante et une grande précision. La modification de la microstructure du carbure de tungstène, et plus particulièrement sa teneur en cobalt suscite aujourd’hui le plus grand intérêt de la part des fabricants pour développer de nouvelles nuances plus performantes et ainsi gagner de nouveaux parts de marché. Cette thèse pro

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Haron, Che Hassan Che. "Machining of titanium alloys with coated and uncoated carbide tools." Thesis, Coventry University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262998.

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Sharif, Safian. "Face milling of titanium coated alloys using coated and uncoated carbide tools." Thesis, Coventry University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299091.

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Jubica, Jubica. "Characterization of Secondary Carbides in Low-Alloyed Martensitic Model Alloy Tool Steels." Thesis, KTH, Materialvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-284449.

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The development of tool steels for making and shaping other materials requires a better understanding of the material's properties during manufacture. These high-quality steels include many alloying elements, which give increased hardness during tempering. For producing hardened microstructures, austenite generation is essential. The martensite formed by rapid quenching of austenite followed by tempering helps develop high strength steels. Studying carbide precipitation is a challenge as they are very small in size, present only in small volume fractions and high number densities. The carbide

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Klein, Alexander. "Spiral bevel and hypoid gear tooth cutting with coated carbide tools /." Aachen : Shaker, 2007. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015866212&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Köksal, Sakip. "Face milling of nickel-based superalloys with coated and uncoated carbide tools." Thesis, Coventry University, 2000. http://curve.coventry.ac.uk/open/items/86a6b065-704a-475b-b805-9d3397487ddf/1.

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Face milling machinability investigation of two difficult-to-machine nickel-based superalloys, namely Inconel 718 and Waspaloy, has been carried out with four different types of tungsten carbide tools under various cutting conditions. The tools comprised of one double-layer CVD-TiCN+Al2O3 coated (KC994M), two PVD-TiN coated (KC720 and KC730) and one uncoated (KMF) tungsten carbide tools. The objectives of the study include investigation of tool performance, failure modes and wear mechanisms under the cutting conditions employed. In addition, surface integrity of the machined surfaces, with reg

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Klein, Alexander [Verfasser]. "Spiral Bevel and Hypoid Gear Tooth Cutting with Coated Carbide Tools / Alexander Klein." Aachen : Shaker, 2007. http://d-nb.info/1166510123/34.

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Ульяненко, Н. В. "Підвищення працездатності твердосплавного інструмента при комбінуванні магнітно-абразивної обробки з зносостійкими покриттями". Thesis, Вид-во СумДУ, 2005. http://essuir.sumdu.edu.ua/handle/123456789/20148.

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Jonsson, Wildner Klas. "Chemical Effects on Formation and Propagation of Comb Cracks in Coated Cemented Carbide Milling Inserts." Thesis, KTH, Materialvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156017.

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The report aims to investigate the influence of chemical reactions on comb crack formation and propagation in coated cemented carbide milling inserts with different compositions. A series of novel experimental techniques have been developed and applied to understand oxidation and corrosion effects on comb cracks. Furthermore microstructure changes in the region of the comb cracks on worn milling inserts were studied by high resolution microscopy. It has been observed that the main effect of the oxidation and corrosion on comb cracks is connected to an attack of the binder phase, affecting its

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Fang, Shiqi [Verfasser], and Dirk [Akademischer Betreuer] Bähre. "Defined structured cemented carbide tools for abrasive machining processes / Shiqi Fang ; Betreuer: Dirk Bähre." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2016. http://d-nb.info/1182989063/34.

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Fahad, Muhammad. "A heat partition investigation of multilayer coated carbide tools for high speed machining through experimental studies and finite element modelling." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/a-heat-partition-investigation-of-multilayer-coated-carbide-tools-for-high-speed-machining-through-experimental-studies-and-finite-element-modelling(dfa40f00-df30-403f-80ae-7533b41bedbd).html.

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High Speed Machining (HSM) is associated with higher cutting velocities and table feedrates and higher material removal rate, lower cutting forces in contrast to conventional machining. HSM can be undertaken dry or near dry and hence it is considered as environmentally friendly machining in relation to the use of cutting fluids. A key challenge in HSM is that, the thermal loads generated during the cutting process can be a major driver of thermally activated wear mechanism and hence affect machining performance. The ability of cutting tools to act as thermal barrier can be a highly desirable p

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Doležel, Ondřej. "Rozvoj technologie frézování forem povlakovanými tvarovými frézami." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229992.

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This diploma thesis is involved in possible development of different types of milling molds coated with modern plows. The first part is devoted to an analysis of contemporary trends in forms production technology. The analysis includes the different types of machines and tools for making various kinds of molds and dies. Another part deals with design of dies for sheet metal shears. The thesis continues by design of the production procedure after heat treatment and finishing die by miling. For milling of die are designed miling tools, the NC program and the possible development of manufacturing

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