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Choosing a correct knife angle

In the operation of modern high-speed cutters it is unavoidable that cutting differences are encountered occasionally, in spite of accurate machine adjustment and most careful alignment of the material to be cut by the operator. The reason is to be found in the varying characteristics of the material to be cut. It would, therefore, be ideal if only one particular material were processed on one particular machine. Different materials require different knife angles and it is difficult to determine the correct knife angle if all sorts of material are to be cut successively at short intervals of time.
In such cases a mean knife angle of 24° is recommended. If the customer does not explicitly order another knife angle the Polar HSS knives are delivered with an angle of 24°. This also applies to the standard equipment of new POLAR highspeed cutters. The correct cutting angle and suitable
knife quality determine to a large extent the cutting quality and economical operation of the high-speed cutter.

 

Main characteristics of the knife according to DIN 8869

 

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