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Bruch von Wolframcarbid-Klingen – Ursachen und Lösungen


Cracks and consequent breakages are a very frequent situation for tungsten carbide blades. In this article we try to briefly identify the causes of possible breakages and the solutions to prolong the life of the blade.

Below is a list of causes and solutions for tungsten carbide blades.

Cause N.1: Incorrect choice of carbide blade specifications and grades

Frequent examples are thicknesses that are too thin or material qualities that are too hard, or too brittle for machining.

Solution: In these cases it is usually to increase the thickness of the blade or install the blade vertically. Furthermore, it is good to ask for a consultation to choose a material quality that is more resistant to toughness and bending.

Cause N.2: Wrong choice of tool geometry parameters

Solution: You can proceed with grinding the transition edge or changing the cutting angle to ensure normal cutting operation.

Cause N.3: Poor maintenance

The tungsten carbide blade is used too long without proper maintenance, resulting in excessive wear.

Solution: Schedule preventative blade maintenance, or blade replacement.

Cause N.4: Incorrect installation of the blade

The carbide cutting tool is not installed correctly.

Solution: Reinstall the cutting tools. Ask for a consultation if you have any doubts about the correct installation.

Cause N.5: Excessive cutting vibration

Solution: Increasing the auxiliary workpiece support to improve the workpiece clamping rigidity greatly reduces cutting vibration.

If you pay due attention to the above points, the phenomenon of carbide blade breakage can be greatly reduced.

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