Turning | CUTTING TOOLS | 35
inserts capable of turning in the Z-positive direction
over the past few decades, with Iscar Tools Inc.
the first horse out of the gate. “We invented Turn-Groove back in the early ‘80s,” says Steve Geisel,
senior product manager for Iscar Tools Canada.
“Since then, we’ve continued to expand the family
with the Sumo-Grip, Heli-Grip, and similar tools.
Today there roughly 14 different product lines
that can do this type of application, with new
chipformers and coatings added all the time.”
Geisel is quick to point out that the Sandvik
solution is a distinctly different concept than
groove turning. Yes, both are capable of multi-
directional turning, but Iscar’s solution is designed
for reaching behind shoulders, and for turning
grooves that are (as a rule) at least four times wider
than they are deep. They are not intended as a
replacement for a CNMG or similar turning tool,
although they can certainly be used that way where
tool positions are limited, for example, or where
material removal is limited. As for turning away
from the chuck, Geisel says go for it.
“There’s no problem with that, as long as the
tool is designed to cut in both directions,” he says.
“However—and I don’t care whose tool you’re
using—you should still be careful any time you
start machining away from the spindle. Do you
need tailstock support? Are you holding the part
Jens Lehmann, German goalkeeper legend,
SCHUNK brand ambassador since 2012
for precise gripping and safe holding.
More than 500 possible
combinations for your
Positioning and clamping in one step.
Production possible parallel to set-up
outside of the machine. The quick-change
pallet system VERO-S offers the precise interface
for the biggest clamping technology toolkit.
High tech from a
quick-change pallet system
in soft jaws or hard jaws? Are the feeds and speeds appropriate? You
have to be aware of the cutting forces, and quite possibly adjust the
cutting parameters accordingly.”
Zig-zagging to success
You’ll likely need to adjust the program as well. Iscar and Sandvik
have both worked with MasterCAM and other providers of
programming software to develop what in Iscar’s case are called
turn-groove inserts are available in a wide range of geometries,
grades, and tool widths.
IMAGE: ISCAR TOOL