标题：Comparison of wear performance of diamond tools in frame sawing with different trajectories
作者：Zhang, Heng; Zhang, Jinsheng; Wang, Shuo
作者机构：[Zhang, Heng; Zhang, Jinsheng; Wang, Shuo] Shandong Univ, Sch Mech Engn, Key Lab High Efficiency & Clean Mech Manufacture, Minist Educ, Jinan 250061, 更多
通讯作者：Zhang, Jinsheng;Zhang, JS;Zhang, JS
通讯作者地址：[Zhang, JS]Shandong Univ, Sch Mech Engn, Key Lab High Efficiency & Clean Mech Manufacture, Minist Educ, Jinan 250061, Shandong, Peoples R China;[Zhang 更多
来源：INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
关键词：Diamond tools; Sawing trajectories; Sawing mechanisms; Matrix tail;; Segment wear
摘要：In this study, experiments were performed to explore the wear performance of diamond tools with different sawing trajectories in stone processing. The wear morphologies of the diamond segments were analyzed by an optical microscope and scanning electron microscopy. The wear behavior of the diamond segment was investigated comprehensively from the aspects of the wear morphology of matrix and diamond, the remaining height of segments and the height of protrusion of diamond particles. The results indicated that matrix tails are developed behind diamond particles in impacted frame saws guided by the specific eccentric hinge mechanisms. The sawblades can be lifted and cut stone at the maximum horizontal velocity, create many new cutting edges, so that the diamond particles with cutting ability in impacted frame saws are higher than that of the horizontal frame saw. In addition, the hinge mechanisms of impacted frame saws placed in the same direction are conducive to the uniformity of segment wear compared with the hinge mechanisms placed symmetrically. Impact wear is the main wear mechanism of the diamond particles in impacted frame saws, while impact load also accelerates the fracture of diamond particles. Accordingly, the difference of protrusion height between three kinds of frame saws is not particularly large.