Struers Discotom-50, Instruction Manual

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Discotom-50
Instruction Manual
The following table offers answers to a number of common
questions about how to achieve better quality cuts:
Optimising Cutting Results
Question Answer Comments
Reduce rotational speed.
23
Causes increased wheel
wear. How can I avoid
discoloration or
burning of the
sample?
If reduced rotational speed
fails to solve problem, change
to softer cut-off wheel*
How can I avoid
unplane cut? Reduce rotational speed.
Causes increased wheel
wear.
How can I avoid
smearing? Reduce rotational speed. Causes increased wheel
wear.
Use a softer cut-off wheel* Causes increased wheel
wear How can I avoid
burrs?
Secure the workpiece on both
sides of the cut-off wheel
Increase rotational speed. May cause sample
discoloration and unplane
cut.
How can I prevent
the cut-off wheel
wearing out too
quickly?
Use a harder cut-off wheel*
Place the cut-off wheel as low
as possible.
Place the workpiece in a
position that allows the cut-off
wheel to cut the smallest
possible cross-section.
How can I cut
faster?
Increase feed speed. May cause sample
discoloration and unplane
cut.
Minor vibrations:
Increase feed speed in steps
of 0.1 m/s.
May cause sample
discoloration and unplane
cut. How can I avoid
machine vibrations?
Major vibrations:
Increase rotational speed by
500 rpm. May cause sample
discoloration and unplane
cut.
* Please refer to the Selection Guide in the Struers
Cut-off Wheels Brochure .
The protection guard has a safety switch to prevent the cut-off
wheel from starting while the guard is open. Furthermore, a
locking mechanism prevents the operator from opening the
protection guard until the cut-off wheel stops spinning.
Explanation of Safety Factors