Improving the Quality of Ceramic and Cemented （改善陶瓷的质量和巩固）.pdf

American Journal of Applied Sciences 2 (5): 969-975, 2005 ISSN 1546-9239 © Science Publications, 2005 Improving the Quality of Ceramic and Cemented Carbide Cutting Inserts by Diamond Grinding Tareq Ahmad Abu Shreehah and Rasheed Abdulateef Abdullah Department of Mechanical Engineering, Al-Balqa’ Applied University, Jordan Abstract: The machining of hardened steel and other difficult-to-cut materials require high quality and progressive cutting tools to meet the growing requirements for increasing productivity, improving tool life and quality of the cutting process. This study deals with an experimental investigation on the quality improvement by diamond grinding of ceramic and cemented carbide cutting inserts, comparing it with conventional batch produced types. It was found that under finish turning of hardened up to 61 HRC steel the ground cutting inserts improve the machined surface finish, reduce tool wear and breakage and subsequently extend the tool life. Key words: Finish Turning, Ceramic, Carbide, Tool Life, Surface Finish INTRODUCTION The efficiency of the machining process and its quality depend on the insert cutting edges and surface The cutting tool is considered as an important state, particularly in the presence of notches, spellings factor on which the quality and productivity of the and the surface roughness of the tool face and flank. cutting manufacturing process depend on. The The objective of this research