In this paper, a type of soft metal binder of diamond tools (diamond segments) that was consisted of 78% Brass (Cu-10Zn) +16% Bronze (Cu–10Sn) + %6Co was investigated. The first, it was approved that the binder is a soft metal binder by a hardness test for diamond tools in natural stones cutting. Then, the effective factors on grinding efficiency such as specific energy (SE), Cutting force (FC), metal binder removal rate (MRR), grinding ratio (G-ratio), wear resistance and Mean free path (MFP) were evaluated by different formula and equations. On the other hand, the effect of different wear mechanisms on the metal binder and diamond grits of the tool was evaluated by the cutting of a type of very hard marble stone that calls Cappochino Beige Marble (CBM). The existence of wears of abrasive, surface fatigue, impact and erosive were confirmed by scanning electron microscopic observations. According to hardness 73 HRB (hardness of the binder) and the wears, there is a short tools life for the diamond tool due to low wear resistance of the metal binder but, the cutting rate was high.

Novelty statement

The rising price of decorative stones will increase the final price of the stones and will overshadow the global market of decorative stones. The presence of cobalt, iron, chromium and nickel powders increases the price of diamond tools because of their high price. On the other hand, due to the higher temperature and time of hot press to produce these tools by the mentioned powders, it will also increase the price. Therefore, in this paper, brass and bronze alloy powders, which are much cheaper than cobalt, iron, chromium and nickel powders, have been used as main metal binder powders to reduce raw material prices and manufacturing process costs. On the other side, due to the creation of a softer metal binder compared with the more expensive and harder binder of cobalt, iron, chromium and nickel powders, it can be affected to increase the cutting speed because of increasing wear of the binder. Therefore, mathematical calculations are essential for the efficiency of the tools' cutting.

中文翻译：

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大理石石材切割中金刚石/铜工具的磨损参数和机理的确定

在本文中，研究了一种由78％的黄铜（Cu-10Zn）+ 16％的青铜（Cu-10Sn）+％6Co组成的金刚石工具（金刚石段）的软金属粘合剂。首先，通过天然石材切割中金刚石工具的硬度测试，该粘合剂是一种软金属粘合剂。然后，通过以下方法评估了影响磨削效率的有效因素，例如比能（SE），切削力（FC），金属粘结剂去除率（MRR），磨削比（G-ratio），耐磨性和平均自由程（MFP）。不同的公式和方程式。另一方面，通过切削一种称为卡波奇诺米色大理石（Cappochino Beige Marble，CBM）的非常硬的大理石石材，评估了不同磨损机制对工具的金属粘合剂和金刚石砂粒的影响。存在磨料磨损，表面疲劳，通过扫描电子显微镜观察证实了冲击和侵蚀。根据硬度73HRB（粘合剂的硬度）和磨损，由于金属粘合剂的低耐磨性，金刚石工具的工具寿命短，但是切削速率高。

新颖性声明

装饰石材价格的上涨将提高石材的最终价格，并使全球装饰石材市场黯然失色。钴，铁，铬和镍粉的存在由于其价格高昂而增加了金刚石工具的价格。另一方面，由于通过上述粉末生产这些工具的热压温度和时间较高，因此也会增加价格。因此，在本文中，将比钴，铁，铬和镍粉便宜得多的黄铜和青铜合金粉用作主要的金属粘合剂粉，以降低原材料价格和制造工艺成本。另一方面，由于与钴，铁，铬和镍粉的较昂贵和较硬的粘合剂相比，由于形成了较软的金属粘合剂，由于粘合剂的磨损增加，可能会影响切割速度的提高。因此，数学计算对于刀具切削效率至关重要。