Abstract:
Owing to the contaminations in the small discharge gap of microelectro-discharge machining (lEDM), generation of nonuniform
nature of discharge pulses is more significant than in macroEDM. To address the contribution in material removal of workpiece by each of these pulses, a pulse discriminating (PD) system
which discriminates them into contributing and noncontributing
types is generally used. Developing a PD system in lEDM is a
time-consuming process that requires an availability of continuously running machine. Such requirement could be eliminated if
virtual signals, similar to the actual once, are made available and
provided continuously to the PD system developer. An innovative
idea of generating such virtual signals, based on NI MULTISIM, is,
therefore, proposed and a robust PD system based on these signals is developed and validated. The strategy for discriminating
the pulses in various types is developed through virtual instrumentation in NI LABVIEW. The robustness is validated in terms of its
applicability over a wide range of parametric settings, acquisition
length, and time.
