Blind-hole drilling of Al2O3/6061Al composite using rotary electro-discharge machining
Blind-hole drilling of Al2O3/6061Al composite using rotary electro-discharge machining
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DOI：
10.1016/s0924-0136(99)00423-9
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发表时间：
2000-05
影响因子：
6.3
通讯作者：
Che Chung Wang;B. Yan
中科院分区：
文献类型：
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作者：
Che Chung Wang;B. Yan
本文采用田口方法优化了Al 2 O3/6061 Al复合材料的盲孔钻削工艺。实验结果表明，修正后的偏心通孔铜电极具有最佳的加工性能。三个观察值，MRR，EWR和SR，验证了这种加工技术的优化。此外，在评估田口方法时，选择七个独立参数作为变量，并将其分为两组：（1）电参数，例如，极性、峰值电流、脉冲持续时间和粉末供应电压，以及（2）非电参数，例如，电极的旋转速度、介电流体的注入冲洗压力和电极中的偏心通孔的数量。此外，田口方法的分析表明，电气组比非电气组的加工特性有更显着的效果。此外，在所有参数中，极性或峰值电流对MRR、SR或EWR的影响最显著，而非电气组中没有一个具有同等影响。本文还导出了包含所有加工特性的半经验方程。
This work optimizes the blind-hole drilling of Al2O3/6061Al composite using rotary electro-discharging machining by using Taguchi methodology. Experimental results confirm that the revised copper electrode with an eccentric through-hole has the optimum performance for machining from various aspects. Three observed values, MRR, EWR, and SR, verify this optimization of the machining technique. In addition, seven independent parameters are chosen as variables in evaluating the Taguchi method and are categorized into two groups: (1) electrical parameters, e.g., polarity, peak current, pulse duration, and powder supply voltage, and (2) non-electrical parameters, e.g., rotational speed of the electrode, injection flushing pressure of the dielectric fluid, and the number of eccentric through-holes in the electrode. Moreover, analysis of the Taguchi method reveals that the electrical group has a more significant effect than the non-electrical group on the machining characteristics. Furthermore, either the polarity or the peak current most prominently affects the MRR, SR or EWR amongst all of the parameters, whereas none of the non-electrical group has an equal affect. Also derived herein are semi-empirical equations that contain all of the machining characteristics.