List of Articles Signal-to-noise ratio

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  1 - Investigation of the Impact of the Alumina Powder Presence in Dielectric on Electrical Discharge Machining Parameters of A413 Aluminum Workpiece using Taguchi's Experiment Design, Signal-to-noise Analysis, and Total Normalized Quality Loss
  Mojtaba Shahbazi Dastjerdi Ali Mokhtarian Mojtaba Rahimi
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  2 - Study of the effect of magnetic field on the surface roughness of the workpiece in electric discharge machining of Al2O3-reinforced A413 composite
  Ahmadreza Mizbani Sayed Ehsan Mirmohammadsadeghi Ali Mokhtarian
  In this research, the effect of electric discharge machining input parameters on the surface roughness of A413 composite reinforced with 2.5% Al2O3, in two cases with the presence of a magnetic field and without a magnetic field was investigated and compared. The resear More

  In this research, the effect of electric discharge machining input parameters on the surface roughness of A413 composite reinforced with 2.5% Al2O3, in two cases with the presence of a magnetic field and without a magnetic field was investigated and compared. The research presented with Taguchi experiment design approach which is based on L9 orthogonal array and iterative surface technique. The input parameters of these experiments include voltage (two levels), current intensity (three levels), pulse on-time (three levels) and pulse off-time (three levels). Experiments results show machined surface roughness reduction in presence of magnetic field up to 32 percent. The analysis of the results included the determination of signal-to-noise ratio diagrams corresponding to each of the input parameters and analysis of variance by Minitab software. The results show that the surface quality of the workpiece improves in the presence of a magnetic field compared to machining conditions without a magnetic field. Also, based on the results of analysis of variance in both cases, the current intensity is the most effective input parameter on the surface roughness of the workpiece made of A413 composite reinforced with 2.5% Al2O3. Manuscript profile