Struers Discotom-60, Instruction Manual

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Discotom-60 /-65
Instruction Manual
41
The following table offers answers to a number of common questions
about how to achieve better quality cuts:
Question Answer Comments
How can I avoid
discoloration or
burning of the
sample? Reduce rotational speed.
(D-65 only). Causes increased wheel
wear.
If reduced rotational speed
fails to solve problem, change
to a softer cut-off wheel*
How can I avoid
unplane cuts? Reduce rotational speed.
(D-65 only).
Causes increased wheel
wear.
How can I avoid
smearing? Reduce rotational speed.
(D-65 only). Causes increased wheel
wear.
How can I avoid
burrs? Use a softer cut-off wheel* Causes increased wheel
wear
Secure the workpiece on both
sides of the cut-off wheel
How can I prevent
the cut-off wheel
wearing out too
quickly?
Increase rotational speed. May cause sample
discoloration and unplane
cut.
Use a harder cut-off wheel*
How can I cut
faster?
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.
Increase feed speed. May cause sample
discoloration and unplane
cuts.
How can I avoid
machine vibrations?
Minor vibrations:
Increase feed speed in steps
of 0.1 m/s.
May cause sample
discoloration and unplane
cuts.
Major vibrations:
Increase rotational speed by
500 rpm. (D-65 only). May cause sample
discoloration and unplane
cuts.
* Please refer to the Selection Guide in the Struers
Struers Cut-off Wheels brochure .
The cutting chamber hood has a safety switch to prevent the cut-off
wheel from starting while the hood is open. Furthermore, a locking
mechanism prevents the operator from opening the hood until the
cut-off wheel stops spinning.
Optimising Cutting Results
Explanation of Safety Factors