At the concept phase many options were considered for
alternative ways of producing tapered holes, such as the
following:
(a) Modify the EDM parameters (e.g. voltage, frequency,
current, gap, gain, or pulse width) during machining to
remove more material radially as the depth of machining
increases.
(b) Move the workpiece relative to the electrode to achieve
the desired hole taper.
(c) Change the electrode angle and position radially during
drilling.
(d) Feed and rotate the electrode at the angle required to
achieve the desired hole taper.
At the concept phase many options were considered foralternative ways of producing tapered holes, such as thefollowing:(a) Modify the EDM parameters (e.g. voltage, frequency,current, gap, gain, or pulse width) during machining toremove more material radially as the depth of machiningincreases.(b) Move the workpiece relative to the electrode to achievethe desired hole taper.(c) Change the electrode angle and position radially duringdrilling.(d) Feed and rotate the electrode at the angle required toachieve the desired hole taper.
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