Tools intended for machining by rotary shear are
designed for materials maximum strength Rm to 60kg/mm2. If all the conditions stated in the user manual are
followed, the lifecycle of the tool can achieve 4,000 metres. In
practice it's however about 2,0000 to 3,000 metres.Several factors affect the service life of the tool:
- Material and its
preparation. As was written already, the maximum strength of bevelled material
needs to be observed. When bevelling materials with higher than the
allowed strength, the lifecycle of the tool reduces rapidly and there is a
risk of destroying the tool, or damaging the machine.
- Also the preparation
of material before bevelling may affect the lifecycle of the tool. If material at your workplace is split by
burning, we recommend that the edges intended for bevelling by angle
grinder are cleared. During burning, particularly with plasma,
material edges get hardened. This fact may affect substantially the final
lifecycle of the tool; therefore we recommend that you proceed with
caution.
- Care for the tool. During bevelling, it
is very important to check the sharpness of the tool.If you find it blunt
it has to be thoroughly reground. Should you fail to fulfil that duty and
continue working, the tool might break out, or even get destroyed.
- Work
procedure. The procedure of machining is very important, as
well. It is
described in detail in the user manual. It applies generally, that during performing
maximum possible chamfers, it has to be split in two chippings.
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