Abstract
This paper reviews the developments achieved to date in cBN abrasive technology and explores progress expected in the near future. Recently there are increasing needs for environment-friendly grinding process. In spite of cBN's great advantage in this respect over conventional abrasive aluminum oxide, cBN abrasive poses a significant obstacle to be widely adopted as a substitute for aluminum oxide due to its lower cost performance ratio. A significant improvement in grinding performance or manufacturing costs is thought to be necessary for a breakthrough in extensive use.
