The study presents the results of comparative laboratory tests of diamond tubular drills when drilling window glass, granite, and abrasive stones based on silicon carbide SiC. The tests were carried out in cold running water. Tin bronze containing micro- and ultradispersed diamond powders of ASM 40/28, ASM 10/7 (MDP), ASM 1/0 (UDDP) grades, and molybdenum powder were used as a matrix of the tool. Furthermore, the dependence of the hardness of specially prepared matrix samples on their composition was examined. With an increase in the ASM 1/0 concentration up to 5 wt.% in the reinforcement, the hardness of the matrix samples increased by one-third and reached a maximum of ~96.5 HRB. A further increase in the ASM 1/0 concentration led to a slight decrease in the hardness of the samples. The use of larger diamond powders required a higher concentration, providing high values of hardness. By adding ASM 10/7 in an amount of 10 wt.% and ASM 40/28 in the amount of 40–60 wt.% we managed to increase the hardness of the matrix to the same maximum. The introduction of a reinforcement in a bonding matrix of diamond tubular drills in amount ensuring its maximum hardness has significantly increased the efficiency of their operation. Thus, the wear of drills after glass processing decreased by 2–6 times, and the drilling speed increased by 3–4 times. Drill wear after granite processing has decreased by 50–84 times, and the drilling speed has increased 2.7–6 times, correspondingly. Finally, after processing of an abrasive stone based on silicon carbide SiC, the wear of diamond tubular drills decreased by 1.4– 2.9 times, and the drilling speed increased by 1.5–2.5 times. The effect of additives in the reinforcement of the tool depended on the choice of the diamond powder grade and their concentration. The best option was the introduction of ASM 1/0 (UDDP) powder in an amount of 5– 9 wt.%. The introduction of ASM 10/7, and especially ASM 40/28 (MDP), into the reinforcement required, firstly, their higher concentration (10–40 wt.%), and secondly, was not effective enough since the wear indicators of diamond tools were higher, and the drilling speed was lower.

这项研究提供了在钻基于碳化硅SiC的窗户玻璃，花岗岩和磨石时，金刚石管状钻头的对比实验室测试结果。测试在冷流水中进行。含有锡青铜的ASM 40/28，ASM 10/7（MDP），ASM 1/0（UDDP）级和钼粉的微分散和超分散金刚石粉末被用作工具的基质。此外，检查了特殊制备的基质样品的硬度对其组成的依赖性。随着增强材料中ASM 1/0浓度的增加达到5 wt。％，基体样品的硬度增加了三分之一，最高达到〜96.5 HRB。ASM 1/0浓度的进一步增加导致样品硬度略有下降。使用较大的金刚石粉需要较高的浓度，以提供较高的硬度值。通过添加10％（重量）的ASM 10/7和40-60％（重量）的ASM 40/28，我们设法将基体的硬度提高到相同的最大值。在金刚石管状钻头的粘结基体中引入一定数量的增强材料，以确保其最大硬度，从而显着提高了其工作效率。因此，玻璃加工后的钻头磨损降低了2–6倍，钻孔速度提高了3–4倍。花岗岩加工后的钻头磨损降低了50–84倍，钻孔速度相应地提高了2.7–6倍。最后，在对基于碳化硅SiC的磨石进行加工之后，金刚石管状钻的磨损降低了1.4-2.9倍，钻孔速度提高了1.5-2.5倍。添加剂对工具的增强效果取决于金刚石粉末等级及其浓度的选择。最好的选择是引入ASM 1/0（UDDP）粉末，其含量为5–9 wt。％。将ASM 10/7，尤其是ASM 40/28（MDP）引入所需的增强材料中，首先，其较高的浓度（10–40 wt。％），其次，由于金刚石的磨损指标不足以有效工具较高，而钻孔速度较低。