Publicação
Temperature assessment in the drilling of Ex vivo bovine and porcine cortical bone tissue
| Resumo: | Thermal damage in bone tissue is a common problem in drilling processes. The main goal of this work is to analyze the cutting conditions that generate the lower temperature, avoiding the occurrence of thermal bone necrosis. In this work, the effects of the drill speed and the feed-rate were studied during the drilling of cor-tical bovine and porcine bone tissue. In the ex vivo drilling operations, two methodologies were performed on several fresh femur bone samples. The present study showed that the combinations of cutting conditions in the drilling process of ex vivo corti-cal bovine and porcine bone tissue, produced temperatures far below the critical values. It was concluded that the temperature increases with an increasing drill speed and decreases with high feed-rates. To the drill speed, the difference is less clear than that the feed-rate. The drilling temperatures on the bovine samples were higher than porcine samples. |
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| Autores principais: | Fernandes, M.G.A. |
| Outros Autores: | Fonseca, E.M.M.; Jorge, Renato N.; Dias, Maria Isabel Ribeiro |
| Ano: | 2015 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| Resumo: | Thermal damage in bone tissue is a common problem in drilling processes. The main goal of this work is to analyze the cutting conditions that generate the lower temperature, avoiding the occurrence of thermal bone necrosis. In this work, the effects of the drill speed and the feed-rate were studied during the drilling of cor-tical bovine and porcine bone tissue. In the ex vivo drilling operations, two methodologies were performed on several fresh femur bone samples. The present study showed that the combinations of cutting conditions in the drilling process of ex vivo corti-cal bovine and porcine bone tissue, produced temperatures far below the critical values. It was concluded that the temperature increases with an increasing drill speed and decreases with high feed-rates. To the drill speed, the difference is less clear than that the feed-rate. The drilling temperatures on the bovine samples were higher than porcine samples. |
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