Carbide burrs, often known as carbide rotary burrs are employed with high-speed electric mills or die grinders to process metal, wood, plastics, etc. Carbide rotary burrs are popular in machinery, automobile, shipbuilding, chemical industry, craft carving, along with other industries. Choosing the right carbide burr on your project is crucial. There are lots of means of picking a high-quality tungsten carbide rotary burr.

Shapes of tungsten carbide rotary burrs
The contour in the carbide rotary burr needs to be based on the form from the workpiece. When processing the interior arc surface, a semi-circular burr or round burr (small diameter workpiece) should be used; when processing the interior corner surface, triangular burrs needs to be selected; when processing the interior right angle surface, a flat burr and square burr can be selected. If the flat burr is utilized to chop the interior right angle surface, it’s important to make a narrow surface (smooth edge) without teeth near among the inner right angle surfaces, so as to avoid damaging the right angle surface.

Tooth thickness of carbide rotary burrs
The thickness of burr teeth must be determined based on the allowance sized the workpiece, machining accuracy, and material properties. The coarse tooth carbide burr is suitable for machining workpieces with large allowance, low dimensional accuracy, large form and position tolerance, large surface roughness value, and soft material; otherwise, fine-tooth carbide burr ought to be selected. When used, it should be chosen in accordance with machining allowance, dimensional accuracy, and surface roughness needed by the workpiece.

Sizes of carbide burrs
The size and style and specification of cemented carbide rotary burr should be selected according to the size the workpiece and machining allowance. Once the machining dimension is large as well as the allowance is big, cemented carbide rotary burr having a large size should be selected, or perhaps a tungsten carbide rotary burr with a small size ought to be selected instead.
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