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Thermoelectric cooling of a lathe cutting toolDarukhanavala, Jehangir Peshotan. January 1965 (has links)
Call number: LD2668 .T4 1965 D22 / Master of Science
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A study to improve the life of high speed steel tools with ion plated refractory compoundsSubbarao, Potru China 12 1900 (has links)
Dissertation made openly available per email from author, 6/13/2016.
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Avaliação de ferramentas de corte texturizadas preenchidas com nanotubos de carbono /Ribeiro, Fernando Sabino Fonteque January 2019 (has links)
Orientador: Luiz Eduardo de Angelo Sanchez / Banca: Vicente Luiz Scalon / Banca: Anselmo Eduardo Diniz / Resumo: Devido à dificuldade de penetração do fluido de corte na região de contato entre o cavaco e a ferramenta, principalmente na zona de aderência, tem-se procurado alternativas para melhorar a lubrificação e refrigeração nesta região. Dentro deste contexto, surgiu a confecção de textura da ferramenta de corte, em sua superfície de saída, cujo objetivo inclui a maior penetração e retenção do fluido nos locais onde se localizam as maiores temperaturas e tensões sobre a ferramenta de corte. Como efeito, a textura também é capaz de reduzir a área real de contato entre cavaco e ferramenta, possibilitando a diminuição da aderência entre eles e, como conseqüência, a minimização da força de usinagem. Vários trabalhos apontam para a aplicação das texturas como micro reservatórios de fluido de corte ou lubrificante, em estado sólido ou líquido. A propriedade de "armazenamento" que as texturas apresentam pode ser explorada não somente para o retenção de lubrificantes ou detritos, mas pode agrupar materiais com alta condutividade térmica, ponto esse ainda não explorado. Micro ranhuras com maiores profundidades podem ser efetivas para o armazenamento de materiais que promovam alta condutividade térmica na interface de contato cavaco-ferramenta. Um material que poderia facilmente ser depositado em micro ranhuras com o intuito de promover uma melhor dissipação térmica seria os nanotubos de carbono, o qual tem uma condutividade térmica incomum dentre os materiais, medindo de 2000 a 6000 W/m.K co... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Due to the difficulty of penetration of the cutting fluid in the region of contact between the chip and the tool, especially in the sticking zone, alternatives have been sought to improve lubrication and cooling in this region. In this context, the texture of the cutting tool was created on rake face, whose objective includes the greater penetration and retention of the fluid in the places where the highest temperatures and stresses are located on the cutting tool. As a result, the texture is also able to reduce the actual area of contact between chip and tool, allowing the reduction of the adhesion between them and, as a consequence, the minimization of the machining force. Several studies point to the application of textures as micro-reservoirs of cutting fluid or lubricant, in solid or liquid state. The "storage" property that the textures present can be exploited not only for the retention of lubricants or debris, but it can group materials with high thermal conductivity, a point not yet explored. Micro grooves with greater depths may be effective for storing materials that promote high thermal conductivity at the chip-tool interface. A material that could easily be deposited in micro grooves in order to promote a better thermal dissipation would be the carbon nanotubes, which has an unusual thermal conductivity among the materials, measuring from 2000 to 6000 W / mK considering a single nanotube of carbon. In the middle, the objective of this work is focused on the textu... (Complete abstract click electronic access below) / Mestre
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Design and control of dual-stage feed drivesElfizy, Amr. Elbestawi, Mohamed A. A. Bone, Gary M. January 1900 (has links)
Thesis (Ph.D.)--McMaster University, 2005. / Supervisors: M.A. Elbestawi, G.M. Bone. Includes bibliographical references (leaves 117-122).
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Hot machining of alloy steels.Ho, Chung-fai. January 1976 (has links)
Thesis--Ph. D., University of Hong Kong, 1977.
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Determination of cutting-tool inventory levels in a flexible manufacturing systemGraver, Thomas William 12 1900 (has links)
No description available.
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Sheet metal forming using rapid prototyped toolingPark, Young-Bin 05 1900 (has links)
No description available.
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Assessment of metal machining process parameters and the development of adaptive control /Audy, Jaromir Unknown Date (has links)
Thesis (PhD in Metallurgical Engineering)--University of South Australia, 1996
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Wear performance of coated carbide cutting tools /Gopinath, Muthuswamy. Unknown Date (has links)
Thesis (MEng)--University of South Australia, 1995
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Assessment of metal machining process parameters and the development of adaptive control /Audy, Jaromir Unknown Date (has links)
Thesis (PhD in Metallurgical Engineering)--University of South Australia, 1996
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