Scopul nostru este sprijinirea şi promovarea cercetării ştiinţifice şi facilitarea comunicării între cercetătorii români din întreaga lume.
Autori: Christian Spanu , Ioan Marinescu, Mike Hitchiner, Milton Hoff
Editorial: Grinding and Abrasives Magazine, Jan-Feb, 2004.
A double side grinding process assisted by an electrolytic in-process dressing (ELID) technique for finishing advanced ceramics components using metal bonded fine diamond wheels was designed, operated, and optimized. The goals of this research focused on improving the process efficiency, the quality of the produced surface, and the tool life. Implementing and operating industrially a highly productive, economical, easy-to-automate and ecological process was sought. The ceramic components produced are characterized by fine and geometrically precise generated surfaces, and low subsurface damage. The metal bonded fine diamond grinding wheels utilized are characterized by extended tool life and easiness of tool preparation and maintenance.
Analytical computerized models were developed to simulate and optimize the process, including an electrolytic anodic oxidation model of metal bond around the diamond grains.
Extensive experimental studies were conducted under a range of conditions: with different wheel specifications, coolant types, with and without ELID assistance, and with various values of process parameters. The tests validated the models and confirmed that ELID fine grinding process can be feasibly implemented industrially generating better results than those of the conventional process.
Cuvinte cheie: rectificare, ELID, materiale ceramice // ELID, double side grinding, advanced ceramics