Carbide burrs, also called 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, and other industries. Selecting the right carbide burr for your project is of great importance. There are many means of choosing a high-quality tungsten carbide rotary burr.
Shapes of tungsten carbide rotary burrs
The contour with the carbide rotary burr must be driven by the design in the workpiece. When processing the internal arc surface, a semi-circular burr or round burr (small diameter workpiece) should be used; when processing the interior corner surface, triangular burrs should be selected; when processing the interior right angle surface, a flat burr and square burr could be selected. Once the flat burr is used to chop the interior right angle surface, it’s important to create a narrow surface (smooth edge) without teeth close to one of the inner right angle surfaces, so as to avoid damaging the proper angle surface.
Tooth thickness of carbide rotary burrs
The thickness of burr teeth should be determined in accordance with the allowance size the workpiece, machining accuracy, and material properties. The coarse tooth carbide burr is acceptable 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 needs to be selected. When used, it needs to be chosen according to 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 needs to be selected based on the sized the workpiece and machining allowance. When the machining size is large and the allowance is big, cemented carbide rotary burr with a large size ought to be selected, or a tungsten carbide rotary burr having a small size needs to be selected instead.
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