Machine tools are the main production factor for many industrial applications in many important sectors. Recent developments in new motion devices and numerical control have lead to considerable technological improvements in machine tools. The use of five-axis machining centers has also spread, resulting in reductions in set-up and lead times. As a consequence, feed rates, cutting speed and chip section increased, whilst accuracy and precision have improved as well. Additionally, new cutting tools have been developed, combining tough substrates, optimal geometries and wear resistant coatings. "Machine Tools for High Performance Machining" describes in depth several aspects of machine structures, machine elements and control, and application. The basics, models and functions of each aspect are explained by experts from both academia and industry. Postgraduates, researchers and end users will all find this book an essential reference.

Machine tools are the main production factor for many industrial applications, in important sectors such as the automotive and aeronautical industry, precision parts, human implants, and mechanical construction. Recent developments in new motion devices and numerical control have lead to considerable technological improvements in machine tools. The use of five-axis machining centres has also spread, resulting in reductions in set-up and lead times. As a consequence, feed rates, cutting speed and chip section increased, whilst accuracy and precision have improved as well. Additionally, new cutting tools have been developed, combining tough substrates, optimal geometries and wear resistant coatings. Today s machines and machining processes are clearly very different to those of the past.

Machine Tools for High Performance Machining describes in depth several aspects of machine structures, machine elements and control, and application. The basics, models and functions of each aspect are explained by experts from both academia and industry. Postgraduates, researchers and end users will all find this book an essential reference.

El brunido es una operacion de acabado sencilla, de bajo coste y que genera una superficie final de gran calidad, tanto en aspectos fisicos como mecanicos. Esta tecnica es conocida desde hace mas de 30 anos, sin embargo, es en los ultimos anos cuando se ha visto incrementada su potencialidad como proceso de acabado. Esto es debido a la necesidad de evitar el empleo de esquemas tecnologicos tradicionales como el rectificado y los tratamientos termicos, los cuales son altamente consumidores de energia y potencialmente contaminantes del medio ambiente. En el presente trabajo, se estudian las mejoras de las caracteristicas fisico-mecanicas de piezas complejas y de revolucion, cuyo acabado se ha realizado mediante brunido hidrostatico por bola. Para ello, se realizan una serie de ensayos experimentales donde se puede valorar la calidad superficial conseguida por este proceso, el aumento de la dureza superficial, asi como el aumento de la dureza superficial. Ademas, se genera un modelo de elementos finitos del proceso, dicho modelo es util para obtener valores representativos, tanto de calidad superficial obtenida como de tensiones residuales de compresion."