Efficient dressing of the wheel in ELID grinding by controllable voltage with force feed back
Electrolytic in-process dressing (ELID) grinding is a new method for achieving ultraprecision surface on hard and brittle materials. In ELID grinding, pulsed direct current voltage is applied on the metal-bonded diamond wheels to ensure constant protrusion of sharp cutting grits throughout the...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer London
2010
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/30938/ http://irep.iium.edu.my/30938/ http://irep.iium.edu.my/30938/ http://irep.iium.edu.my/30938/1/AMT__ELID.pdf |
| Summary: | Electrolytic in-process dressing (ELID) grinding
is a new method for achieving ultraprecision surface on
hard and brittle materials. In ELID grinding, pulsed direct
current voltage is applied on the metal-bonded diamond
wheels to ensure constant protrusion of sharp cutting grits
throughout the grinding cycle. The peak dressing voltage is
kept constant irrespective of the wheel sharpness in
conventional ELID grinding, which may lead to overdressing
of the grinding wheel. Grinding force ratio (which
is also known as K value) is an indicator for the grit
sharpness. In this paper, a new approach of wheel dressing
has been proposed where the peak dressing voltage is
varied according to the change in the K value during
grinding. A Kistler three-component dynamometer has
been used to monitor the grinding force ratio in real time
for this purpose. The methodology to implement the new
“dressing-on-demand” concept has been discussed thoroughly
in this paper. The experimental comparison with
the conventional ELID grinding has also been carried out to
prove the advantages of the proposed system. |
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