A novel manufacturing process was employed to develop a single-layer diamond wheel using bulk metallic glass (BMG) as the matrix and diamond particles as abrasives. BMG effectively prevented graphitisation and damage to the diamond abrasives because of its lower manufacturing temperature and avoidance of brazing flux. The Titanium (Ti) coating on the surface of diamond abrasives facilitated the formation of an interleaved dissolution-diffusion interface between the two constituents, creating mechanical occlusion at the BMG-diamond interface. The strong and tight bonding interface afforded a diamond abrasive joint strength of up to 112.59 N, with the main shear failure mode being transgranular fracture instead of pull-off failure. Furthermore, the manufactured BMG-bonded single-layer diamond wheel predominantly exhibited attritious wear instead of the exfoliation of abrasives when grinding AlO ceramics. Compared with contemporary electroplated grinding wheels, the developed diamond wheel demonstrated a reduction in the normal and tangential grinding forces of 32.64% and 35.86%, respectively, and a 28.22% increase in the grinding ratio, making it an excellent candidate for grinding hard and brittle materials.

中文翻译：

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新型块状金属玻璃结合剂单层金刚石砂轮的研制

采用新颖的制造工艺开发了一种单层金刚石砂轮，该砂轮以大块金属玻璃（BMG）为基体，金刚石颗粒为磨料。 BMG由于其较低的制造温度和避免使用钎焊剂，有效地防止了金刚石磨料的石墨化和损坏。金刚石磨料表面的钛 (Ti) 涂层有利于两种成分之间形成交错的溶解扩散界面，从而在 BMG-金刚石界面处产生机械咬合。坚固而紧密的结合界面使金刚石磨料接头强度高达112.59 N，主要剪切破坏模式是穿晶断裂而不是拉脱破坏。此外，所制造的 BMG 结合剂单层金刚石砂轮在磨削 Al2O3 陶瓷时主要表现出磨损，而不是磨料剥落。与当代电镀砂轮相比，所开发的金刚石砂轮的法向磨削力和切向磨削力分别降低了32.64%和35.86%，磨削比提高了28.22%，使其成为磨削硬脆材料的绝佳选择。材料。