Page 61 - Fall 2024 EDM Today

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The V9 has some very impressive features. The frame
is a high-tech concrete-polymer casting. This mate-
rial is thermally stable and has vibration-dampening
properties, which provides better surface fi nishing and
extended tool life.
The fully enclosed and sealed unit is supplied with
a dust collection system. The ball screws are not
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exposed to the cutting environment. Wipers on the
bearings keep the bearings clean.
The V9 includes a powerful Heidenhain control. The
dual gantry is both rigid and fast. Rapid travel rate is
1,181 in/min. It can accelerate at an impressive 1.5G
(49 ft/s2).

A 36,000 RPM spindle is standard. Other spindle options are available,
as high as 42,000 RPM. Currently it is available in two sizes, the V5
and the V9. However, a larger V12 is planned for the future.

After looking at the V9, I spoke with Senior Application Engineer Pat
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Crownhart. He showed me their SG28 Sinker on display. The SG28
has their newest M800 CNC control. It is 5-axis capable and packed
with advanced features. These features include on-board AI that
works with Mitsubishi’s IDPM3 circuit to reduce electrode wear while
at the same time cutting machining time in half. It supports high-
speed jump at 20m/min. jump speed. High 1.6G acceleration sup-
ports fl ushless machining. A dielectric chiller is standard.
Other features include automated pick-up cycles that allow the
program to be locally offset based on the pick-up. The control sup-
ports volumetric compensation resulting in high levels of precision
anywhere in the work envelope.
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Pat caught my attention when he mentioned one
of the nicest features: the ability to auto-adjust/
optimize when cutting new or unknown alloys. In
my role at EDM Today, we see new alloys always
coming out. This is particularly true in aerospace
and medical applications. To have the ability to
auto adapt to an unknown material is valuable
indeed!
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The last machine I looked at was the MV2400R
Wire EDM. This machine was set up in a demon-
stration to dress diamond grinding wheels. Users
can save a huge amount of money. The cost to
dress a diamond wheel with Wire EDM is roughly
$7 per hour, compared to $60 per hour, which is
common with more traditional methods. There is
also a secondary benefi t. The Wire EDM cut exposes the diamond grit in a better way such that users of EDM-dressed
diamond wheels report better longevity when dressed with EDM.
The rotary unit shown at IMTS is a type ITS-RSI-55 made by ITS Technologies. There are multiple options available for
rotary units. The largest can support a diamond wheel up to 18” in diameter. (Continued on next page)
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EDM Today, Fall 2024 Issue