Machinability of Cobalt-Bonded Tungsten Carbide by Electrical Discharge Machining
Author Information
Author(s): Salvide-González Unai, Puertas-Arbizu Ignacio, Luis-Pérez Carmelo Javier
Primary Institution: Public University of Navarre
Hypothesis
This study aims to analyze the influence of EDM parameters on the surface roughness, material removal rate, and tool wear for cobalt-bonded tungsten carbide.
Conclusion
The current intensity is the most significant factor affecting the EDM process outcomes, with lower current and pulse time yielding better surface finishes.
Supporting Evidence
- The current intensity was found to be the most significant factor affecting surface roughness and material removal rate.
- Lower current intensity and pulse time resulted in better surface finishes.
- Mathematical models were developed to optimize the EDM process for WC-Co.
Takeaway
This study looked at how different settings in a special machining process affect the quality of a tough material. It found that using lower power makes the surface smoother.
Methodology
A multilevel Design of Experiments (DOE) was conducted to analyze the influence of EDM parameters on surface roughness, electrode wear, and material removal rate.
Limitations
The predictive capability of the obtained models is limited to the maximum and minimum levels of the current intensity and pulse time studied.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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