The machining capability of metal composites is different compared to other materials because of their specific physical and mechanical properties. The aluminum composite A413 reinforced with Alumina powder is one of the materials which causes rapid erosion of the tool if traditional machining methods are employed. In this research, the electrical discharge machining experiments were conducted using the Taguchi method. After analysis of variance (ANOVA) using simultaneous analysis of total normalized quality loss (TNQL), and signal-to-noise ratio (S/N) of outputs, the effect of each parameter such as current intensity, voltage, pulse on-time and pulse off-time have been investigated. These parameters are influential on material removal rates, surface roughness, and tool wear ratio of electric discharge machining in two cases of with alumina powder and without alumina powder in dielectric. The outcomes of this research indicate that the use of Alumina powder 3 g/L in kerosene dielectric averagely reduces the material removal rate by 7.8%, increases the surface roughness by 8.8%, and decreases the tool wear ratio by 1.3%. Also, the results of analysis of total normalized quality loss and signal-to-noise ratio of the experiment have been shown as the first level of voltage (A1), the first level of current intensity (B1), the first level of pulse on time (C1), and the third level of pulse off time (D3).

中文翻译：

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Taguchi法，信噪比分析和总归一化质量损失对电介质中氧化铝粉对铝复合材料A413-Al ₂ O ₃放电加工参数的影响

与其他材料相比，金属复合材料的机加工能力因其特定的物理和机械性能而有所不同。如果采用传统的机加工方法，则用氧化铝粉增强的铝复合材料A413是导致工具快速腐蚀的材料之一。在这项研究中，使用田口方法进行了放电加工实验。在使用总归一化质量损失（TNQL）和输出信噪比（S / N）的同步分析进行方差分析（ANOVA）之后，电流强度，电压，脉冲导通时间等每个参数的影响和脉冲关闭时间已被调查。这些参数对材料去除率，表面粗糙度，电介质中有铝粉和无铝粉两种情况下的放电加工的刀具磨损率和磨损率。这项研究的结果表明，在煤油电介质中使用3 g / L氧化铝粉末平均可将材料去除率降低7.8％，将表面粗糙度提高8.8％，并将工具磨损率降低1.3％。此外，实验的总归一化质量损失和信噪比的分析结果显示为电压的第一电平（A1），电流强度的第一电平（B1），脉冲的第一电平时间（C1）和第三级脉冲关闭时间（D3）。使表面粗糙度增加8.8％，并使刀具磨损率降低1.3％。此外，实验的总归一化质量损失和信噪比的分析结果显示为电压的第一电平（A1），电流强度的第一电平（B1），脉冲的第一电平时间（C1）和第三级脉冲关闭时间（D3）。使表面粗糙度增加8.8％，并使刀具磨损率降低1.3％。此外，实验的总归一化质量损失和信噪比的分析结果显示为电压的第一电平（A1），电流强度的第一电平（B1），脉冲的第一电平时间（C1）和第三级脉冲关闭时间（D3）。