Abstract
The present study was undertaken to compare the characteristics of two typical diamond tools used for the grinding of natural stone materials. Powder metallurgical sintering and brazing were adopted to fabricate two kinds of diamond tools: sintered and brazed tools. The comparison was conducted for the two diamond tools from three aspects: the bonding of metal matrix to diamonds, the evaluation of diamond retention, and tool wear process. It was found that the bonding of brazing alloy was rather different from that in the sintered tools, thereby leading to a totally different method for assessing the bonding of bond materials to diamonds as well as different wear mechanisms for the diamond tools in grinding.
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