10 documents found, page 1 of 1
Comparative study of titanium alloys machinability used for medical applications
Festas, A. J.; Carvalho, S.; Horovistiz, A.; Ramos, A.; Davim, J. P.CNC machining manufacturing is critical to the development of biomedical industries, especially orthopaedic implants. Understanding a material's machinability under different cutting conditions is essential for component design as well as for optimizing the machining process. Despite their widespread use in the biomedical industry, α+β-type titanium (Ti) alloys, such as Ti-6Al-4V and Ti-6Al-7Nb, are being repla...
Machining of titanium alloys for medical application: a review
Festas, A. J.; Ramos, A.; Davim, J. P.Titanium alloys for their characteristics have acquired a prominent position in numerous industrial applications. Due to its properties, such as high resistance to corrosion, reduced density, high specific strength and low Young's modulus, titanium alloys became indispensable as a biomaterial with high use in medical devices, with special emphasis in the area of orthopaedics. Problems associated with its manufa...
A study of the effect of conventional drilling and helical milling in surface q...
Festas, A. J.; Pereira, R. B.; Ramos, A.; Davim, J. P.In the manufacturing of a medical device, may occur the need to make a hole with a specific function. Among current methods, conventional drilling (CD) referred in this work as drilling (D) and helical milling (HM) are two options with different potential. When making the hole, it is important to choose the most suitable method to obtain the desired geometry and ensure the functionality of the device. This work...
Machining of Ti6Al4V alloy: a numerical and experimental approach
Carvalho, S.; Horovistiz, A.; Davim, J. P.Sem resumo disponível.
A comparative study between conventional drilling and helical milling in hole m...
Festas, A. J.; Pereira, R. B.; Ramos, A.; Davim, J. P.Sem resumo disponível.
Comparison of surface topography in machining Ti alloys for biomedical applicat...
Carvalho, Sílvia; Horovistiz, Ana; Festas, A. J.; Davim, J. P.In the last decades, the demand for biocompatible materials has increased because they are widely selected to manufacture medical devices such as dental and surgical implants. The improvement of these materials used to fabricate biocomponents is a constant objective in research focused on reducing negative impacts on patients. Currently, the most commonly used metal alloy in the biomedical industry is Ti-6Al-4V...
A comparative study between conventional drilling and helical milling in hole m...
Festas, A. J.; Pereira, R. B.; Ramos, A.; Davim, J. P.No abstract available.
Enhancing productivity by means of high feed rate in the drilling of Al 2011 al...
Pacheco, R. E. R.; Lauro, C. H.; Pereira, R. B. D.; Carou, D.; Davim, J. P.Drilling is one of the most popular machining operations in industry. It is employed for manufacturing a large number of materials (e.g. steel, aluminium, and composite) and in various sectors (e.g. aeronautic, automotive, and medical). Nowadays, increasing productivity and reducing costs, without compromising the quality of the products, are two main objectives for most manufacturing companies. In machining, t...
Medical devices biomaterials: a review
Festas, A. J.; Ramos, A.; Davim, J. P.Due to the world’s population life expectancy increase, healthcare demands in terms of quality and accessibility are higher than ever before. Concerning the manufacturing of medical devices, the development of new biomaterials, new manufacturing methods and techniques have always been on researchers focus. In the development of a medical device, the choice of the proper material to be used is of the most import...
The effect of minimum quantity lubrication in the intermittent turning of magne...
Carou, D.; Rubio, E. M.; Lauro, C. H.; Davim, J. P.The present work shows an experimental investigation on intermittent turning based on vibration signals. The dependence of vibrations on the feed rate, minimum quantity lubrication (MQL) flow rate and the type of the interruption of the workpiece is evaluated. The results indicate that a part of the vibrations depends on the flow rate of the MQL system and its interaction with the feed rate, finding no dependen...