Reducing electrode wear ratio using cryogenic cooling during electrical discharge machining
In this study, cooling effect of copper electrode on the die-sinking of electrical discharge machining of titanium alloy (Ti-6Al-4V) has been carried out. Investigation on the effect of cooling on electrode wear and surface roughness of the workpiece has been carried out. Design of experiment pl...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
2009
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/7590/ http://irep.iium.edu.my/7590/ http://irep.iium.edu.my/7590/ http://irep.iium.edu.my/7590/1/Electrode_Cooling.pdf |
| Summary: | In this study, cooling effect of copper electrode on
the die-sinking of electrical discharge machining of titanium
alloy (Ti-6Al-4V) has been carried out. Investigation on the
effect of cooling on electrode wear and surface roughness of
the workpiece has been carried out. Design of experiment plan
for rotatable central composite design of second order with
four variables at five levels each has been employed to carry
out the investigation. Current intensity (I), pulse on-time (ton),
pulse off-time (toff), and gap voltage (v) were considered as
the machining parameters, while electrode wear and surface
roughness are the responses. Analysis of the influence of
cooling on the responses has been carried out and presented
in this study. It was possible to reduce electrode wear ratio
up to 27% by electrode cooling. Surface roughness was also
reduced while machining with electrode cooling. |
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