Wire EDM Machine Operation Chapter 4
Copyright November, 98 Page 4-5 Sodick Inc.
3) CHECK THE CONDITION FILE MANUAL FOR THE NECESSARY CONDITIONS AND
OFFSETS
Prior to writing your manual program, you must know the conditions and offsets required
to produce the part to your requirements. The condition manual from Sodick is broken
down into four basic categories as described during chapter one. Review the information
presented earlier when deciding which cutting conditions to use (see page 1-11).
4) CONSIDER THE BEST START POINT
Prior to trying to write your program, it is necessary to study the print to determine a wise
starting point for the wire. For punches (or any outside shape), it is important that you
select the start point in a way that allows the tab to easily be ground off with a surface
grinder. If you are not careful about your start point selection, you may find it difficult to
grind the tab area after the punch has been removed from the wire EDM machine.
Figure 4-3A Figure 4-3B
As you can see, the part in Figure 4-3A allows the tab area to easily be ground. The piece
could simply be laid flat on the chuck of the surface grinder for the grinding operation.
But the part in Figure 4-3B shows a start point that would require an elaborate setup on
the surface grinder.
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