Wire EDM Machine Operation Chapter 1
Copyright November, 98 Page 1-6 Sodick Inc.
It is important to know if your machine is equipped with the EF2 circuit or not. Some of
the parameters discussed have different ranges if using EF2. The parameters act the same,
but the setting value would be different between the two machine types.
Following is a graph that shows 3 EDM cycles. Voltage is applied to the wire until an
ionization channel forms. The voltage drops and amperage is now flowing between the
wire and the workpiece for the length of time that the ON time designates. The process
repeats thousands of times per second.
The cutting condition parameters on the following pages can be entered into the NC
program if desired. The cutting condition parameters affect how the EDM cycle looks
and are discussed on the following pages.
Figure 1 - 1
OSCILLOSCOPE DISPLAY OF 3 DISCHARGE PULSES
Now let’s look at the specific “Sodick related” EDM parameters. If you have experience
with other brands of wire EDM machines, some of these will be familiar. However, each
type of EDM machine will have many things that are specific to that machine. Here we
discuss how Sodick does it. NOTE: These can be entered into the NC program if desired.
Example cutting condition :
"( ON OFF IP HP MA SV V SF C WT WS WP WC);"
"C001 = 007 011 117 002 14 018 3 0020 00 000 000 000 000;"
ON
Parameter Range: (0-9)
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