Relevant bibliographies by topics / Advanced ceramics machining

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Advanced ceramics machining'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Advanced ceramics machining"

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Jahanmir, S., and L. K. Ives. "Machining of advanced ceramics." Tribology International 28, no. 6 (September 1995): 415–20. http://dx.doi.org/10.1016/0301-679x(94)00009-f.

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Manna, Alakesh, and Amandeep Kundal. "Micro Machining of Nonconductive Al2O3 Ceramic on Developed TW-ECSM Setup." International Journal of Manufacturing, Materials, and Mechanical Engineering 1, no. 2 (April 2011): 46–55. http://dx.doi.org/10.4018/ijmmme.2011040103.

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Advanced ceramic materials are gradually becoming very important for their superior properties such as high hardness, wear resistance, chemical resistance, and high strength to weight ratio. But machining of advanced ceramic like Al2O3-ceramics is very difficult by any well known and common machining processes. Normally, cleavages and triangular fractures generate when machining of these materials is done by traditional machining methods. It is essential to develop an efficient and accurate machining method for processing advanced ceramic materials. For effective machining of Al2O3-ceramics, a traveling wire electrochemical spark machining (TW-ECSM) setup has been developed. The developed TW-ECSM setup has been utilized to machine Al2O3 ceramic materials and subsequently test results are utilized to analyze the machining performance characteristic. Different SEM photographs show the actual condition of the micro machined surfaces. The practical research analysis and test results on the machining of Al2O3 ceramics by developed TWECSM setup will provide a new guideline to the researchers and manufacturing engineers.
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Gorin, Alexander, and M. Mohan Reddy. "Advanced Ceramics: Some Challenges and Solutions in Machining by Conventional Methods." Applied Mechanics and Materials 624 (August 2014): 42–47. http://dx.doi.org/10.4028/www.scientific.net/amm.624.42.

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The lecture discusses various machining methods of advanced ceramics, their performances and limitations. These methods include both conventional turning, grinding and milling operations and some selected from the category of non-traditional machining processes like electrical discharge machining, laser assisted milling, abrasive water jet and other are presented as well. Special consideration is given to machinable glass ceramic and aluminum nitride ceramic representing structural ceramics due to their wide range of applications and attractive properties
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Zhang, Feng Lian. "Machining Mechanism of Abrasive Water Jet on Ceramics." Key Engineering Materials 426-427 (January 2010): 212–15. http://dx.doi.org/10.4028/www.scientific.net/kem.426-427.212.

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Engineering ceramics feature resistance to high temperature, corrosion, wear and hot impact. However, it is difficult to machine this material in conventional machining methods because of its high hardness and brittleness as well as inconductivity, thus restricting its application area. In recent years, more and more importance has been attached to the new machining method of engineering ceramics, i.e. abrasive water-jet. Feature high efficiency and low cost, the method can be used to process the products of complex shape. However, abrasive water-jet machining of advanced ceramics is a very complex process. The effect of machining on brittle materials, and advanced ceramic materials in particular, have not yet been very well understood. The present research investigates the effect of abrasive water-jet machining on ceramics. The study will increase the general understanding of the machining phenomena for more successful application of abrasive water-jet machining on brittle materials.
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Zeng, Wei Min, Xi Peng Xu, and Zhi Jian Pei. "Rotary Ultrasonic Machining of Advanced Ceramics." Materials Science Forum 532-533 (December 2006): 361–64. http://dx.doi.org/10.4028/www.scientific.net/msf.532-533.361.

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Rotary ultrasonic machining (RUM) is one of the cost-effective machining methods for advanced ceramics, which is a hybrid machining process that combines the material removal mechanisms of diamond grinding and ultrasonic machining (USM). This paper presents an overview of the investigations on RUM of advanced ceramics. The issues about the material removal mechanisms, process modeling, material removal rate, and tool wear in RUM are reviewed. Directions of future research on RUM are also presented.
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Bilal, A., A. Rashid, C. Liu, M. P. Jahan, D. Talamona, and A. Perveen. "Powder Mixed Micro Electro Discharge Machining of Aluminium Nitride Ceramic." MATEC Web of Conferences 303 (2019): 06002. http://dx.doi.org/10.1051/matecconf/201930306002.

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Advanced ceramic materials possess superior mechanical characteristics in terms of hardness, wear resistance, fracture toughness and flexural strength. However, these materials experience machining limitations due to their hardness. Machining process of such materials requires high cutting forces and results in high tool wear. Electro- discharge machining (EDM) can be considered as an alternative machining process for advanced ceramics, since this technique is a non-contact machining process, it does not involve high cutting forces but experiences moderate tool wear. However, EDM requires materials to have certain level of electrical conductivity, therefore, non-conductive and semi-conductive ceramic materials experience challenges during machining process. Assisting Electrode Method was suggested as a solution for machining of non-conductive ceramics by EDM. In this method, conductive layer is applied on top of non-conductive ceramics and thus workpiece can be machined by EDM process using residual conductive layer. In this study, coating consisting of three layers, where silver nanoparticles were sandwiched between two layers of silver and copper on top, was used as assisting electrode to machine Aluminium Nitride (AlN) ceramics by silver nanoparticles mixed micro-EDM. Successful machining of AlN was demonstrated and blind micro hole with higher than three aspect ratio was achieved.
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Tian, Xin Li, Jun Fei Yang, Chao Liu, and Bao Guo Zhang. "Research Progress of Advanced Machining Technologies for Engineering Ceramics." Advanced Materials Research 69-70 (May 2009): 359–63. http://dx.doi.org/10.4028/www.scientific.net/amr.69-70.359.

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Based on the comprehensive summary of latest research achievements of Laser and EDM technologies in home and abroad, the other advanced machining technologies is summarized briefly, such as Ultrasonic Wave, Microwave machining techniques and their composite machining technologies, as well as High-speed (Super High-speed) Grinding, ELID Grinding and Interface Thermal Chemistry Reaction Aided Machining technologies developed on the basis of traditional grinding technology. At last, it is forecasted that the necessary direction of advanced technologies used for ceramics is combinatorial machining technologies of two or more kinds of advanced technologies.
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Watanabe, Keiichiro, Tomonori Takahashi, Tomoki Nagae, and Hiroyuki Tsuji. "Precision Forming and Machining Technologies for Ceramic-Based Components." International Journal of Automation Technology 12, no. 5 (September 5, 2018): 739–49. http://dx.doi.org/10.20965/ijat.2018.p0739.

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Structural ceramics components for industrial use are classified under two categories: one that is originally designed for ceramics (Ceramic Origin), and the other that is originally designed for metals and subsequently replaced with ceramics because of their improved hardness and resistance to both heat and corrosion (Metal Origin). Ceramic insulators for power lines and catalytic substrates used to control automotive emissions in gasoline engines are “Ceramic Origin” components. As ceramics are difficult to machine, a precision mold has been used in the forming process to minimize the machining volume in the case of “Ceramic Origin” components. Meanwhile, ceramic turbo charger rotors and valves for automotive engines are “Metal Origin” components, which not only require durability under severe operating conditions but also severe dimensional accuracy, similar to metal parts. These components have been derived from extensive R&D efforts in materials and process technologies for ceramic gas turbines, which have been implemented in the majority of advanced countries since the 1970s. This paper includes some examples of precision forming and machining technologies for both types of ceramic components developed by NGK Insulators, Ltd., and highlight their issues. Finally, the possibility of new types of ceramic-based components will be introduced.
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Deng, Qian Fa, Ping Zhao, Bing Hai Lv, Ju Long Yuan, and Zhi Wei Wang. "Process Parameters Influence on Semi-Fixed Abrasive Tool Wear." Advanced Materials Research 325 (August 2011): 251–56. http://dx.doi.org/10.4028/www.scientific.net/amr.325.251.

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Abrasive machining is an important process for the manufacturing of advanced ceramics. The demand for advanced ceramics with better quality and higher efficiency presents tremendous challenges for abrasive tools in the advanced ceramics industry. The concept of semi-fixed abrasive machining with a newly developed semi-fixed abrasive tool (SFAT) as machining tool is put forward. This paper presents an experimental investigation for SFAT wear into course of machining single crystal silicon with SFAT. Process parameters (water flow, load and velocity) influencing the SFAT wear are analyzed. Influencing factor of SFAT wear in processing course has been clearly demonstrated.
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Kuruc, Marcel, Martin Kusý, Vladimír Šimna, and Jozef Peterka. "Influence of Machining Parameters on Surface Topography of Cubic Boron Nitride at Rotary Ultrasonic Machining." Key Engineering Materials 686 (February 2016): 180–85. http://dx.doi.org/10.4028/www.scientific.net/kem.686.180.

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Poly-crystalline cubic boron nitride (PCBN) is one of the hardest known material. Therefore only advanced methods are able to treat such material. Advanced machining methods, proper for machining of hard and brittle materials (such as glass and ceramics) include rotary ultrasonic machining (RUM). This method should achieve high precision and low surface roughness (at least during machining of materials such as ceramics). Achievable roughness is affected by machined material and machining parameters. This contribution investigates influence of machining parameters, such as cutting speed and feed rate, on resultant surface roughness during machining of PCBN by rotary ultrasonic machining.
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Dissertations / Theses on the topic "Advanced ceramics machining"

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Simoes, Jose Filipe Castanheira Pereira Antunes. "Advanced machining technologies in the ceramics industry." Thesis, Staffordshire University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343387.

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Ojha, Nirdesh [Verfasser], Holger [Akademischer Betreuer] Reinecke, and Thomas [Akademischer Betreuer] Hanemann. "Electrical discharge machining of non-conductive advanced ceramics." Freiburg : Universität, 2016. http://d-nb.info/112264695X/34.

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Habovštiaková, Mária. "Elektroerozivní drátové řezání technické keramiky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417109.

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The presented diploma thesis deals with the issue of wire electrical discharge machining of SiSiC ceramics. The first part explains the principles of electrical discharge machining, describes the WEDM technology and presents the properties of the advanced ceramics. The second part consists of a detailed analysis of the cutting process of eighteen samples obtained with systematically changing process parameters. Based on the obtained results from EDX analysis, SEM electron microscopy and topography there was performed an analysis of the influence of process parameters on the cutting speed, surface roughness, kerf width and number of wire breaks with usage of the selected brass cutting wire. From the evaluated results it was possible to select a combination of parameters that ensured a stable machining process.
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Margarido, Alexandre. "Estudo da influência da força de corte em usinagem a verde nas propriedades mecânicas de cerâmicas sinterizadas." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/18/18146/tde-02042012-133133/.

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O estudo trata da medição da força de usinagem a verde de corpos de provas cerâmicos e sua correlação com as propriedades mecânicas após a sinterização. A usinagem a verde é empregada em compactos brutos para conferir formatos sem extremo compromisso com precisão dimensional ou para obter uma pré-forma antes da usinagem de acabamento após sinterização; é extensivamente empregada na usinagem de cerâmicas avançadas. Durante o processo de usinagem a verde os esforços de corte determinam a introdução de defeitos críticos na superfície e são geralmente estes defeitos que governam as propriedades mecânicas das cerâmicas após a sinterização. O trabalho objetiva a elaboração e montagem de um sistema de aquisição de dados das forças de usinagem, e procura identificar o limite de agressividade de corte na manutenção da integridade do corpo de prova com produção econômica. As medidas de torque de usinagem e velocidade periférica do rebolo podem representar um modelo para predizer a associação das forças de usinagem. Corpos de prova cilíndricos foram conformados a 100 e 200 MPa, tratados termicamente após a prensagem e usinados com diferentes parâmetros de corte, sinterizados e ensaiados quanto à resistência mecânica através de compressão e flexão a quatro pontos. Os resultados mostraram a importância do tratamento térmico antes da usinagem acima da temperatura de transição vítrea do ligante para peças prensadas a 100 e 200 MPa. Peças prensadas a 200 MPa e tratadas termicamente foram usinadas sem danos a taxas de remoção de 10.000 \'MM POT.3\'/min com potencia consumida de 1700 W. Com o emprego de um cabeçote com mancais aerostáticos de alta potência e baixo ruído não se detectou a introdução progressiva de defeitos críticos na superfície devido à ação do rebolo, porém se identificou um limite de velocidade de 400 mm/min em função da profundidade de corte que excedeu a resistência mecânica dos corpos de prova comprimidos a 100 MPa, levando a ruptura. A correlação entre potência consumida e taxa de remoção, forneceu informações muito importantes para o projeto de uma máquina de usinagem á verde de produtos cerâmicos em alumina.
The present study deals with the measurement forces of green machining ceramics and their correlation with the mechanical properties after sintering. The green machining is employed in crude compacts either to check raw formats without compromising the extreme dimensional accuracy or to obtain a preform prior to finish machining after sintering, extensively used in the machining of advanced ceramics. During the process of the green machining, cutting forces determine the introduction of the critical defects in the surface, which generally govern the mechanical properties after the sintering of ceramics. The study aims at the development and installation of a system of machining forces data acquisition and also the identification of the limit of cutting aggression to maintain the integrity of the ceramics with economic production. The torque measurements of machining and grinding wheel peripheral speed can represent a model to predict the association of the machining forces. Cylindrical bodies were conformed at 100 and 200 MPa, heat-treated after pressing and machined with different cutting parameters, sintered and tested concerning strength by compression and bending at four points. The results showed the importance of the heat treatment before machining above the glass transition temperature of the binder for the parts pressed at 100 and 200 MPa. Parts pressed at 200 MPa and heat-treated were machined without damage at 10.000 \'MM POT.3\'/min removal rates with power consumption of 1700 W. With the use of a spindle with aerostatic bearings for high power and low noise the gradual introduction of critical defects into the surface was not detected due to the action of the wheel. However a speed limit was identified in function of the depth of the cut, which exceeded the strength of the ceramics compressed at 100 MPa, leading to rupture. The correlation between power consumption and rate of removal provided very important information for the design of a green machining of ceramic products in alumina.
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Abrão, Alexandre Mendes. "The machining of annealed and hardened steels using advanced ceramic cutting tools." Thesis, University of Birmingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249408.

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Bruno, Danver Messias. "Estudo da aplicação de insertos de cerâmica avançada na usinagem de ultraprecisão em aços endurecidos." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18145/tde-27092013-105238/.

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O objetivo principal desse trabalho é investigar a aplicação de cerâmica á base de Zirconia em ferramentas de corte na usinagem de aço temperado (VND) utilizando um torno de ultraprecisão. Foram analisados dois tipos de composições de cerâmicas com estrutura cristalina diferentes, sendo elas: monoclínica e tetragonal. A diferença destas estruturas é devido à adição de Ytria. A fase monoclínica não contém Ytria em sua composição, enquanto, a fase tetragonal é obtida com Ytria (\'Y IND.3\') (chamada zirconia parcialmente estabilizada com Ytria). A fase tetragonal apresenta uma resistência elevada ao impacto junto com alta dureza (1800 kgf/\'MM POT.2\') quando comparada com a fase monoclínica que apresenta alta dureza mas menor tenacidade. Devido a este fato, esses materiais têm chamado à atenção dos pesquisadores para a usinagem de aços endurecidos. A geração de superfície é influenciada por diversos fatores, sendo eles: material peça, condições de corte, erros macro geométrico, erros de micro geometricos e do estado da aresta da ferramenta. Na usinagem de ultraprecisão a alta rigidez e vibração/trepidação máquina ferramenta é usada para evitar erros de micro geometria e macro geometria que conseqüentemente são transferidos para superfície da peça. Neste trabalho, devido ao fato de se usar um torno de ultraprecisão é possível afirmar que o perfil da rugosidade é gerado pela replicação do perfil da aresta da ferramenta de corte para a superfície da peça. A rugosidade da superfície foi medida com um perfilometro óptico com resolução de 0,1 nm. Os resultados mostraram que a rugosidade da superfície obtida após os testes de usinagem com as ferramantas de cerâmicas chegou á valores em torno de 0,140 microns, o que equivale ao acabamento com processo de retificação. Outro aspecto importante refere-se ao desgaste das ferramentas que, conseqüentemente, tem uma grande influência nos resultados obtidos. As ferramentas de corte foram analisadas antes e depois da usinagem por microscópio eletrônico de varredura. Verificou-se que as ferramentas de corte na fase tetragonal apresentaram desgaste do tipo cratera na aresta da ferramenta enquanto a aresta da ferramenta monoclínica apresentou desgaste do tipo lascamento.
The main objective of this work is to investigate the application of a ceramic composite of Alumina-Zirconia cutting tools inserts in the machining of hardened steel (VND) in an ultraprecision lathe. Two different ceramic compositions with different crystalline structure were tested, to know: monoclinic and tetragonal. The difference in these structures is due the addition of Yttrium. The monoclinic phase has no Yttrium in its composition while the tetragonal phase is obtained with Ytrium (\'Y IND.3\') (named partially stabilized zirconium). The tetragonal phase presents a high impact toughness along with high hardness (1800 kgf/\'MM POT.2\') when compared to the monoclinic phase which presents high hardness but lower toughness. Due to this fact, these materials have draw attention of researchers in the field of machining of hardened steels. The surface generation is influenced by several factors, to know: workpiece material, cutting conditions, macro geometry errors, micro geometry errors and the sharpness of the cutting edge. In ultraprecision machining, a high stiffness and chatter/vibration free machine tool is used in order to avoid common macro and micro geometry errors replicated into the workpiece surface. In this case, it is possible to assert that the roughness profile is generated by the replication of the cutting tool edge profile to the workpiece surface. The surface roughness was measured by an optical profiler with resolution of 0,1 nm. The results showed that the surface roughness obtained after machining tests with these ceramic inserts were in the range of 0,140 micrometers, which is in the same range of roughness obtained by the grinding process. Another important aspect refers to the wear of the ceramic inserts which has direct influence in the performance as a cutting tool material. The cutting inserts were evaluated before and after machining by scanning electron microscope. It was found that the tetragonal phase cutting tools presented crater wear on the rake face while the monoclinic phase presented cutting edge chipping as the main main type of wear.
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Books on the topic "Advanced ceramics machining"

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Intersociety Symposium on Machining of Advanced Ceramic Materials and Components (1988 Chicago, Ill.). Intersociety Symposium on Machining of Advanced Ceramic Materials and Components: Presented at the winter annual meeting of the American Society of Mechanical Engineers, Chicago, Illinois, November 27-December 2, 1988. New York: The American Society of Mechanical Engineers, 1988.

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Intersociety, Symposium on Machining of Advanced Ceramic Materials and Components (1988 Chicago Ill ). Intersociety Symposium on Machining of Advanced Ceramic Materials and Components: Presented at the Winter Annual Meeting of the American Society of Mechanical Engineers, Chicago, Illinois, November 27-December 2, 1988. New York, N.Y: American Society of Mechanical Engineers, 1988.

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Katsutoshi, Komeya, Matsuo Yohtaro, Goto Takashi, Nihon Seramikkusu Kyōkai, and Nihon Gakujutsu Shinkōkai. Kōbutsu Shinkatsuyō Dai 124 Iinkai., eds. Innovation in ceramic science and engineering: Selected, peer reviewed papers from the 3rd International Symposium on Advanced Ceramics, Grand Copthorne Waterfront Hotel, December 11-15, 2006, Singapore. Stafa-Zurich, Switzerland: Trans Tech Publications, 2007.

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Intersociety Symposium on Machining of Advanced Ceramic Materials and Components (1st 1987 Pittsburgh, Pa.). Intersociety Symposium on Machining of Advanced Ceramic Materials and Components, April, 1987. Westerville, Ohio: American Ceramic Society, 1987.

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Said, Jahanmir, National Institute of Standards and Technology (U.S.), National Science Foundation (U.S.), and United States Navy, eds. Machining of advanced materials: Proceedings of the International Conference on Machining of Advanced Materials, July 20-22, 1993, Gaithersburg, Maryland. Gaithersburg, MD: U.S. Dept. of Commerce, National Institute of Standards and Technology, 1993.

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American Society of Mechanical Engineers. Winter Meeting. Intersociety of symposium on machining of advanced ceramic materials and components: Presented at the Winter annual meeting of the American Society of Mechanical Engineers, Chicago, Illinois, November 27-December 2, 1988. New York: American Society of Mechanical Engineers, 1988.

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Abrao, Alexandre Mendes. The machining of annealed and hardened steels using advanced ceramic cutting tools. Birmingham: University of Birmingham, 1995.

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Handbook of advanced ceramics machining. Boca Raton, FL: CRC Press, 2006.

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D, Marinescu Ioan, ed. Handbook of advanced ceramics machining. Boca Raton: CRC Press, 2007.

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Marinescu, Ioan D. Handbook of Advanced Ceramics Machining. Taylor & Francis Group, 2006.

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Book chapters on the topic "Advanced ceramics machining"

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Zeng, Wei Min, Xi Peng Xu, and Zhi Jian Pei. "Rotary Ultrasonic Machining of Advanced Ceramics." In Materials Science Forum, 361–64. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-421-9.361.

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Quinn, George D., Lewis K. Ives, and S. Jahanmir. "Machining Cracks in Finished Ceramics." In Fractography of Advanced Ceramics II, 1–13. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-973-3.1.

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König, W., and E. Verlemann. "Machining Advanced Ceramics — A Challenge in Production Technology." In Designing with Structural Ceramics, 187–200. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3678-5_10.

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Krishnaraj, Vijayan, and S. Senthil Kumar. "An Investigation of Ductile Regime Machining of Silicon Nitride Ceramics." In Machinability of Advanced Materials, 175–228. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118576854.ch6.

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Gadow, Rainer, Richard Landfried, and Frank Kern. "Electrical Discharge Machining (EDM) of High-Performance Ceramics." In Proceedings of the III Advanced Ceramics and Applications Conference, 25–32. Paris: Atlantis Press, 2015. http://dx.doi.org/10.2991/978-94-6239-157-4_2.

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Youssef, Helmi, and Hassan El-Hofy. "Machining of DTC Materials (Ceramics and Composites) by Traditional and Non-Traditional Methods." In Non-Traditional and Advanced Machining Technologies, 219–66. Second edition. | Boca Raton, FL : CRC Press, [2020]: CRC Press, 2020. http://dx.doi.org/10.1201/9781003055310-8.

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König, W., and M. Popp. "Precision Machining of Advanced Ceramics — A Challenge in Production Technology." In Ultraprecision in Manufacturing Engineering, 58–71. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-83473-8_4.

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Du, Jinguang, Haizhen Zhang, Yongmiao Geng, Wuyi Ming, Wenbin He, Jun Ma, Yang Cao, Xiaoke Li, and Kun Liu. "Machining of Ceramic Matrix Composites." In Advances in Machining of Composite Materials, 311–34. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71438-3_12.

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Khaliq, Jibran. "Ceramic Matrix Composites (CMCs)." In Advances in Machining of Composite Materials, 285–309. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71438-3_11.

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Liu, Yi Zhi, Ying Chun Liang, and Fei Hu Zhang. "Machining Characteristics Analysis of Nano Ceramics in Ultra Precision Grinding Machining." In Advances in Grinding and Abrasive Technology XIII, 210–13. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-986-5.210.

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Conference papers on the topic "Advanced ceramics machining"

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Nikumb, Suwas K., and M. U. Islam. "Laser depth-controlled precision machining of advanced ceramics." In Photonics West '97, edited by Jan J. Dubowski. SPIE, 1997. http://dx.doi.org/10.1117/12.273725.

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Li, Zhichao, Liang-Wu Cai, Z. J. Pei, and Clyde Treadwell. "Finite Element Simulation of Rotary Ultrasonic Machining for Advanced Ceramics." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59582.

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Rotary ultrasonic machining (RUM), a hybrid machining process that combines diamond grinding and ultrasonic machining, has been utilized as a cost-effective material removal method for hard-to-machine materials such as advanced ceramics. In this study, the stress and deformation fields in a ceramic workpiece (92% Al2O3) and the formation of edge chipping during RUM process are investigated using finite element method. Based on a simplified model of RUM process, a three-dimensional finite element model is constructed using axisymmetric eight-node quadrilateral element. In the finite element model, the areas of the workpiece bottom surface that are in contact with the fixture are defined as boundaries of zero displacement in normal direction. A static load is applied to the cutting zone, which is the contact area between the tool’s end face and the bottom surface of the machined slot in the workpiece. The value of the load is calculated from experimental measurements using a dynamometer. Using this model, the maximum von Mises stresses are computed. Initiation and location of the crack, which leads to chipping in RUM process, are also analyzed and compared with experimental results observed under a microscope.
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Wu, Xuefeng, Hongzhi Zhang, and Yang Wang. "Three-dimensional thermal analysis for laser assisted machining of ceramics using FEA." In 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, edited by Li Yang, John M. Schoen, Yoshiharu Namba, and Shengyi Li. SPIE, 2009. http://dx.doi.org/10.1117/12.830988.

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de Souza, José Vitor Candido, Maria do Carmo de Andrade Nono, Sergio Luiz Mineiro, Olivério Moreira de Macedo Silva, and Marcos Valério Ribeiro. "Properties advanced of the silicon nitride based ceramics and recent performance on automotive parts manufacture by machining process: Advanced Ceramics, demand Forecast." In 2008 SAE Brasil Congress and Exhibit. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2008. http://dx.doi.org/10.4271/2008-36-0330.

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Jen, Tien-Chien, Rajendra Jadhav, Yau-Min Chen, and Samih Omari. "Thermal Management in Laser Assisted Machining: A Preliminary Study." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42931.

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The use of laser in manufacturing has gained considerable attention recently. In non-reactive processes, the laser beam is used either to machine, to weld, or to modify the target material structure by local heating. In addition to elevating the surface temperature of the target, this local heating may significantly alter the material crystalline structure; change its phase, and thus the electrical, mechanical and thermal properties. For reliability and consistency, it is necessary to control effectively the laser-based manufacturing processes. Specifically, the induced micro-structural changes due to the heat transfer mechanisms have to be analyzed. Most importantly, the thermal effect on the sub-surface microstructures and the generated thermal stress distribution need to be well quantified. The application of lasers in manufacturing has distinctive advange when dealing with ceramic material. The use of advanced ceramics has doubled in the past ten years, and is expected to grow at an even faster pace in the new millennium. The superior properties, such as low weight, high temperature strength and wear/corrosion resistance, of these structural ceramics make them the preferred materials in various applications including bearings, rollers/followers, valves, engines, cutting tools and even artificial joints in the human body. The major goal of this study is to develop an innovative laser-assisted drilling process through innovative tool design and cooling method. A preliminary investigation of the effect of donut-shaped laser heat input on the temperature distribution in the workpiece is studied numerically and experimentally.
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Tian, Yinggang, Benxin Wu, and Yung C. Shin. "Laser-Assisted Milling of Silicon Nitride Ceramics." In ASME 2006 International Manufacturing Science and Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/msec2006-21008.

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Laser-assisted machining (LAM) has shown its potential to significantly reduce fabrication costs and improve product quality for advanced ceramic materials. While extensive studies have been conducted on laser-assisted turning (LAT) of various ceramics, few attempts have been made to extend LAM to milling operations. In this paper, a transient, three-dimensional thermal model is developed for laser-assisted milling (LAML) and verified by surface temperature measurements with an infrared camera. LAML experiments designed by the model are successfully conducted on silicon nitride ceramics using TiAIN coated carbide end mills. The promising experimental results, including good surface roughness and acceptable tool wear, show the validation of applying the thermal model to design LAML processes and the feasibility of employing LAML to advanced ceramics.
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Ravindra, Deepak, John A. Patten, and Jun Qu. "Single Point Diamond Turning Effects on Surface Quality and Subsurface Damage in Ceramics." In ASME 2009 International Manufacturing Science and Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/msec2009-84113.

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Advanced ceramics, such as Silicon Carbide (SiC) and Quartz, are increasingly being used for industrial applications. These ceramics are hard, strong, inert, and light weight. This combination of properties makes them ideal candidates for tribological, semiconductor, MEMS and optoelectronic applications respectively. Manufacturing these materials without causing surface and subsurface damage is extremely challenging due to their high hardness, brittle characteristics and poor machinability. Often times, severe fracture can result when trying to achieve high material removal rates during machining of SiC or quartz due to their low fracture toughness. This research demonstrates that ductile regime Single Point Diamond Turning (SPDT) is possible on these materials to improve its surface quality without imparting subsurface damage. Machining parameters, such as depth of cut and feed, used to carry out ductile regime machining will be discussed. Subsurface damage analysis was carried out on the machined samples using non-destructive methods such as Optical Microscopy, Raman Spectroscopy and Scanning Acoustic Microscopy to show evidence that the chosen material removal method leaves a damage-free surface and subsurface. Optical microscopy was used to image the improvements in surface finish whereas Raman spectroscopy and scanning acoustic microscopy was used to observe the formation of amorphous layer and subsurface imaging in the machined regions. All three techniques complement the initial hypothesis of being able to remove a nominally brittle material in the ductile regime.
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Zafred, Paolo R., Shay L. Harrison, and Jeffrey J. Bolebruch. "Development and Testing of High Purity Alumina Ceramics for SOFC Stack Components." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33316.

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The successful attainment of many of the next generation Siemens SOFC Advanced Module features is dependent on development of key components required to provide fuel and process air to a stack of Delta cells. The overall objectives of this development effort included design and analysis of key stack components, fabrication of low cost net shape castings, characterization of high purity alumina ceramic material, and validation through full scale testing in Single and Multi-Cell Test Articles. The manufacturing process chosen for fabrication of stack components is a unique injection molding process referred to as the Blasch process. The Blasch process is a relatively low cost manufacturing process which allows for the fabrication of complex, close tolerance, near net shapes in a range of high alumina ceramic compositions without the need for expensive secondary machining. The Blasch process allows engineers to design virtually without restrictions related to other forming processes such as slip casting, extrusion, or pressing. The process utilizes nanotechnology to strongly bind together ceramic slurries containing one of a series of proprietary binders that can be activated by utilization of specific time/temperature processing. After casting into engineered molds, the binders in these slurries are caused to precipitate irreversibly and, upon firing, form a particularly thermal shock resistant ceramic bond containing no free silica. Ceramic shapes formed in this process shrink minimally and predictably, during firing, and therefore this is one of the few processes that can be claimed as true net shape manufacturing. Considerable effort went also in the development of a new class of failure tolerant alumina ceramics for SOFC stack components for service in reducing atmosphere at temperatures up to 1000°C. Pressureless infiltration of freeze cast alumina parts with chromium oxide was conducted to improve material’s strength. Strengthening of the porous alumina matrix is postulated to be a combination of both fracture toughness increase and crack size decrease, as a result of the infiltration process. Final results suggest that mechanical properties of infiltrated ceramics are superior to conventional porous freeze cast alumina material. This paper addresses the approach to ceramic castings design for SOFC stack components, the fabrication challenges with respect to shape complexity and the experimental tests performed to validate the material choice.
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Fernando, Palamandadige K. S. C., Zhijian Pei, Meng (Peter) Zhang, and Xiaoxu Song. "Rotary Ultrasonic Drilling of CFRP: Effect of Process Parameters on Delamination." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8611.

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Drilling is an essential practice, especially for the aerospace industry. Conventional machining procedures such as twist drilling are not cost effective for hard to machine materials such as titanium, advanced ceramics, carbon fiber reinforced plastics etc. Rotary ultrasonic machining (RUM) is a nontraditional machining process for hard to machine materials. RUM utilizes a rotating, ultrasonically vibrating tool (core drill) feeds into the workpiece to remove the material. Although drilling is the most common machining process for CFRP, delamination is a major problem associated with drilling, because of its heterogeneity and anisotropy. Delamination reduces structural integrity and increases assembly tolerance which leads to rejection of a part or a component. In the air craft industry, rejections caused by delamination accounts for 60% of all rejections in final assembly. This motivates researchers to identify delamination-free techniques to reduce component rejection caused due to delamination. This paper, for the first time, investigates the effects of process parameters on the delamination of CFRP processed by RUM. These process parameters are variable feed rate, variable spindle speed and the use of backing plate.
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Jackson, Mark J., and Benjamin Mills. "Development of a Laser-Based Micro-Drilling Center." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32899.

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The micro-machining of components for use in electronic and mechanical devices is a well-established science. Techniques have advanced sufficiently for the realisation of an increasingly diverse range of microstructures that can be used as components for micro-systems. Demand for micro-components has necessitated the need to employ alternative manufacturing techniques so that a wider range of materials such as polymers, metals, ceramics and composites can be used in microstructures. Current research in this area is focused on the machining of engineering materials at the micro-level through the use of nanosecond, pulsed lasers. The use of nanosecond, pulsed lasers provides surface intensities of the order of 1012W/cm2, enabling rapid vaporisation of the material at the surface of the workpiece. This paper discusses the challenges presented by laser micro drilling of M2 tool steels.
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Reports on the topic "Advanced ceramics machining"

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Licht, R. H., P. Kuo, S. Liu, D. Murphy, J. W. Picone, and S. Ramanath. Innovative grinding wheel design for cost-effective machining of advanced ceramics. Office of Scientific and Technical Information (OSTI), May 2000. http://dx.doi.org/10.2172/755534.

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Licht, R. H., S. Ramanath, M. Simpson, and E. Lilley. Innovative grinding wheel design for cost-effective machining of advanced ceramics. Phase I, final report. Office of Scientific and Technical Information (OSTI), February 1996. http://dx.doi.org/10.2172/374170.

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Abbatiello, L. A., and M. Haselkorn. Cost effective machining and inspection of structural ceramic components for advanced high temperature application. Final CRADA report for CRADA number Y-1292-0151. Office of Scientific and Technical Information (OSTI), November 1996. http://dx.doi.org/10.2172/541925.

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