SciELO - Scientific Electronic Library Online

 
vol.38 issue2Effects of employees' physical and psychological characteristics over manufacturing systems' performanceFast Determination of Earthquake Depth Using Seismic Records of a Single Station, Implementing Machine Learning Techniques author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Ingeniería e Investigación

Print version ISSN 0120-5609

Abstract

HERNANDEZ-CASTILLO, Ignacio; SANCHEZ-LOPEZ, Orquídea; LANCHO-ROMERO, Guillermo Arturo  and  CASTANEDA-ROLDAN, Cuauhtémoc Héctor. An experimental study of surface roughness in electrical discharge machining of AISI 304 stainless steel. Ing. Investig. [online]. 2018, vol.38, n.2, pp.90-96. ISSN 0120-5609.  http://dx.doi.org/10.15446/ing.investig.v38n2.67711.

The effect of the pulse current, pulse on time and pulse off time on the surface roughness of AISI 304 stainless steel workpieces produced by electric discharge machining (EDM) using grade GSP-70 graphite electrodes was studied. A factorial design was performed, considering two levels for each of the three established parameters. From the statistical analysis, it was obtained that the pulse current and pulse on time are the most significant machining parameters on the obtained surface roughness values of the stainless steel AISI 304 workpieces machined by EDM. On the other hand, the regression analysis of a second order model was done to estimate the average roughness (Ra) in terms of the pulse current, pulse on time and pulse off time. Finally, the mean absolute percentage error (MAPE) of the roughness values estimated by the second order regression model and the roughness obtained experimentally is also presented.

Keywords : AISI 304 stainless steel; electric discharge machining; factorial design; average roughness.

        · abstract in Spanish     · text in English     · English ( pdf )