Tungsten Carbide Cutting Tool Precautions

Details: Category: Tungsten Information; Published on Thursday, 23 October 2014 16:10; Written by xjq; Hits: 446

When using tungsten carbide cutting tools , operators should pay attention to some precautions as follows:

I. Tungsten carbide cutting tools are made from hard and brittle materials, therefore, diamond grinding wheel should be applied in the finish machining.

II. Due to its material characteristics of hardness and brittleness, the tungsten carbide cutting tool may break when suffering from great impact or clamp force.

III. Tungsten carbide has relatively low coefficient of thermal expansion, therefore, when produced into hot or cold external members, if there are significant differences between the operating temperature and design value, cracks may come into being.

IV. Tungsten carbide cutting tools must be kept in a dry place, because the cutting fluid or other kinds of fluid may corrode it and thus reduce its tool intensity.

V. During the copper brazing of tungsten carbide blades, if the copper brazing temperature is too high or too low, the blade may fall off or generate cracks.

VI. After the tungsten carbide cutting tool grinding, operators should check carefully whether there are cracks or not on the surface.

VII. After the electromachining of tungsten carbide cutting tools, operators should check whether there are cracks or not on the cutter surface, or it may have a bad influence on the cutter intensity. If necessary, the cracks can be eliminated through accurate grinding.