How To Select The Perfect Carbide Burrs?

Carbide burrs, also called carbide rotary burrs are widely-used with high-speed electric mills or die grinders to process metal, wood, plastics, etc. Carbide rotary burrs are traditionally used in machinery, automobile, shipbuilding, chemical industry, craft carving, along with other industries. Choosing the proper carbide burr for the project is important. There are several options for deciding on a high-quality tungsten carbide rotary burr.

Shapes of tungsten carbide rotary burrs
The shape of the carbide rotary burr needs to be determined by the design with the workpiece. When processing the internal arc surface, a semi-circular burr or round burr (small diameter workpiece) should be used; when processing the inner corner surface, triangular burrs ought to be selected; when processing the interior right angle surface, a designated burr and square burr can be selected. In the event the flat burr is utilized to cut the inner right angle surface, it is vital to make a narrow surface (smooth edge) without teeth near to among the inner right angle surfaces, so as to avoid damaging the correct angle surface.

Tooth thickness of carbide rotary burrs
The thickness of burr teeth needs to be determined according to the allowance height and width of the workpiece, machining accuracy, and material properties. The coarse tooth carbide burr would work 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 must be selected. When used, it needs to be chosen in accordance with machining allowance, dimensional accuracy, and surface roughness needed by the workpiece.

Sizes of carbide burrs
The scale and specification of cemented carbide rotary burr ought to be selected based on the height and width of the workpiece and machining allowance. In the event the machining dimension is large along with the allowance is big, cemented carbide rotary burr using a large size should be selected, or even a tungsten carbide rotary burr which has a small size needs to be selected instead.
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