dust is a problem, a dust extraction collet
nut can help facilitate removing dust out
of the cutting flutes so the tool does not
overheat and is not recutting chips.
Proper chip load
Any sign of heat or dark discoloration
Chip load is a calculation based on
in the flute of the tool is a clear indica-
tion of improper chip load applied to
the machining parameters. Heat will
rapidly cause the cutting edge of any
tool to deteriorate and become dull.
spindle rpm, feed rate and number of
Increasing the number of flutes,
such as going to a 3-flute cutter instead
of a 2-flute cutter in hopes of getting a
better finish, is a fallacy. More flutes are
only recommended when faster feed
rates need to be achieved. The finish
cut made by a 3-flute compression bit,
under ideal operating conditions, will
be no better than that of a 2- flute bit,
run under its ideal machining parameters. For tips on how to determine the best
chip load for tool longevity, visit guhdo.com/
In summary, spending a little extra
time to research cutting tool options
based on material and application will
go a long way to reduce tooling cost,
waste and possibly even improve finish.
Tooling cost is not determined by what
you pay for the bit. It’s determined by
the cost of panels cut or the number
of linear foot machined cutting the
abrasive aluminum oxide content
in melamine. It is best to make sure
the proper carbide grade is selected
based on material being machined.
With high volume panel processing,
it’s advisable to see if diamond tooling
(PCD) is an option to reduce tool cost.
With 2 and 3 flute PCD bits available
now (they used to be limited to single
flute tools on ½” diameter, thus limiting feed speeds dramatically), huge
savings are often to be realized.
Source: Karin Deutschler is the president of
GDP|GUHDO USA. For more information call
800-544-8436 or visit GUHDO.com.
CUTTING & GRINDING
Best practices start with
your tooling partner.
High Production Tools & Systems For Wood & Advanced Materials
Expertise, problem solving, attention to detail...
In addition to superior tooling products, you need a partner supplier
that knows the best tooling application for your desired outcomes.
Leitz takes a comprehensive approach to your tooling, from
implementation and set-up to ongoing service and maintenance,
ensuring efficiency, quality, and productivity.
Shape your future with Leitz.
We shape the future
Leitz Tooling I 4301 East Paris Avenue S.E.
Grand Rapids, MI 49512 I 800.253.6070