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AR T I C L E
Advanced Machine & Engineering/AMSAW
www.read-tpt.comSEPTEMBER 2017
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How can you tell if you experience
torsional vibrations with your saw?
Just take a look at the chips and the cut surface.
The chips are evenly spiral curved with a clean surface. The
cut surface is smooth showing no vibration pattern.
The sound of the saw blade and gearbox measured with a
sound level meter is smooth, indicating no vibration.
A blade subject to torsional vibration will produce wrinkled,
unevenly curled chips. The surface of the chips and the cut
surface are rough and show the vibration pattern.
The noise of the blade and the gearbox sounds rumbling: this
is caused by the wind-up and relaxation of the gear train.
This fluctuation of the torque creates an uneven chip thickness
and in consequence reduces the tool life.
This forces the operator to slow down the machine, and
reduces the output.
Furthermore, the uneven surface requires more stock for
finishing operations and increases material waste.
Instruments such a strobes and accelerometers allow us to
pinpoint where trouble occurs inside the gearbox.
This helps especially for troubleshooting when a gearbox gets
worn or an accident has damaged gears or bearings.
Advanced Machine & Engineering
2,500 Latham Street
Rockford, IL 61103, USA
Website:
www.amsaw.com