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首页> 外文期刊>Journal of Materials Research >Effect of operating parameters on the drilling behavior of Zr_(57.5)Cu_(11.2)Ni_(13.8)Al_(17.5) bulk metallic glass
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Effect of operating parameters on the drilling behavior of Zr_(57.5)Cu_(11.2)Ni_(13.8)Al_(17.5) bulk metallic glass

机译：操作参数对Zr_（57.5）Cu_（11.2）Ni_（13.8）Al_（17.5）大块金属玻璃钻孔性能的影响

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摘要

Zr-based bulk metallic glasses (BMGs) exhibit superior physical and chemical properties in comparison to their crystalline counterparts. In the present work, drilling behavior of Zr_(57.5)Cu_(11.2)Ni_(13.8)Al_(17.5) BMG was investigated at various operating conditions. Drilling was performed using high-speed steel (HSS) and carbide bits. Chip morphology, chip light emission, and burr formation at various drilling parameters were studied to achieve a feasible operating condition for drilling hole without light emission, chip clogging, and debris accumulation. Short spiral chip morphology which is considered ideal in the drilling process was observed at relatively low feed rate (1.5 mm/min) and medium spindle speed (1500 rpm). This also resulted in a small amount of molten debris around the entry hole. It was observed that at the same feed rate, the gradual increase in the speed of the HSS drill bit results in more light emission from the machining surface, whereas no light emission was observed in the case of the carbide drill bit at all drilling parameters.
机译：基于Zr的块状金属玻璃（BMG）与晶体相比具有更高的物理和化学性能。在目前的工作中，研究了Zr_（57.5）Cu_（11.2）Ni_（13.8）Al_（17.5）BMG在各种工况下的钻孔行为。使用高速钢（HSS）和硬质合金钻头进行钻孔。研究了在各种钻孔参数下的切屑形态，切屑发光和毛刺形成，从而为钻孔提供了一种可行的工作条件，而没有发光，切屑堵塞和碎屑堆积。在相对较低的进给速度（1.5 mm / min）和中等主轴转速（1500 rpm）下观察到短螺旋状切屑形态，这在钻孔过程中被认为是理想的。这也导致入口孔周围有少量熔融碎屑。可以看出，在相同的进给速度下，HSS钻头速度的逐渐增加会导致来自加工表面的更多光发射，而在所有钻削参数下，硬质合金钻头都没有观察到光发射。

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  • 来源
    《Journal of Materials Research》 |2013年第23期|3288-3296|共9页
  • 作者

    Naeem ul Haq Tariq; Ghulam Muhammad; Hasan Bin Awais;

  • 作者单位

    Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, Pakistan;

    Department of Mechanical Engineering, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, Pakistan;

    Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, Pakistan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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