Definition of carbide burrs.
Cemented carbide rotary burrs are made of carbide (WC, TiC) micron powder with high hardness and refractory metal as the main component, cobalt (Co) or nickel (Ni) or molybdenum (Mo) as the binder, powder metallurgy products sintered in a vacuum or hydrogen recovery furnace.
IV B, V B, VI B group of metal carbide, nitride, boride, etc., because the hardness and melting point are particularly high, collectively known as cemented carbide.
To teach you the principles of choice
- Selection of section shape of cemented carbide rotary burrs
The section shape of cemented carbide rotary burrs should be selected according to the shape of the part to be rasped so that the two shapes are suitable.
When filing inside the arc surface, choose the half-round file or round file (small diameter workpiece).
When filing inside the angled surface, choose the triangle file.
When filing inside right angle surface, choose a flat-file or square file, etc.
When using a flat file to cut the right-angle surface, care should be taken to make the narrow surface (smooth edge) without teeth near the right-angle surface, so as to avoid hitting the right-angle surface.
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The choice of file tooth thickness
The size of file teeth should be selected according to the size of the workpiece allowance, processing accuracy, and material properties.
A coarse tooth file is suitable for machining large allowance, low dimensional accuracy, large tolerance of shape and position, large surface roughness, and soft materials. otherwise, a fine-tooth file should be selected.
When using, according to the workpiece requirements of machining allowance, size accuracy, and the size of the surface roughness to choose.
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Selection of alloy file size and specification
Cemented carbide rotary burrs should be selected according to the size of the workpiece and machining allowance.
When the machining size is large and the allowance is large, the file with a large size should be selected, whereas the file with small size should be selected.
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The selection of file tooth pattern
Tungsten steel grinding head file tooth pattern should be filed according to the nature of the workpiece material to choose.
File aluminum, copper, mild steel, and other soft materials, the best choice of single-tooth grain (milling teeth) file.
The single-tooth grain file has a big rake angle, small wedge angle, and big chip-containing groove, the chip is not easily blocked, cutting edge is sharp.
Carbide rotary burrs, also known as carbide high-speed assorted milling cutter, carbide mold milling cutter, etc., and high-speed electric mill or pneumatic tools supporting the use.
It can finish all kinds of metal die cavities, clean the flash, Burr, and weld of casting, forging and welding parts, chamfer, chamfer, groove, and keyway of all kinds of mechanical parts, repair the runner of the impeller, clean the pipe.
Finishing machine parts of the hole surface, various metal, and non-metal craft carving. In developed countries, it has been widely used to improve production efficiency and realize the fitter mechanization of an important means.
In recent years, this kind of cutter has been gradually popularized and applied in our country.
With the increasing number of users, it will become a necessary tool for fitters and repairmen.
Advantages of carbide burrs.
- Can process cast iron, cast steel, carbon steel, alloy steel, stainless steel, copper, aluminum, and other metals, and marble, jade, bone, and other non-metals. The processing hardness can reach HRA ≥85.
- The utility model can basically replace the small grinding wheel with a handle and has no dust pollution.
- High production efficiency. The processing efficiency is tens times higher than the hand file and nearly ten times higher than the small grinding wheel with a handle.
- Good processing quality and high finish. Can process all kinds of the high-precision shape mold cavities.
- Long service life. The durability is 10 times higher than that of a high-speed steel tool and 200 times higher than that of a small grinding wheel.
Easy to control, easy to use, safe and reliable.
The cost of integrated processing can be reduced by tens of times.
Rules of use for carbide burrs.
In order to prolong the service life of a file, the following rules must be followed:
- Do not use new carbide rotary burrs to cut hard metals;
- Do not use tungsten steel burrs to grind hardened materials;
- Hard-skinned or sand-burned forgings and castings shall be removed on a grinding wheel before being rasped with a half-sharp file;
- Use one side of the new file first, and when that side is blunt, use the other side,
- When filing, always use a wire brush to remove the chips from the file teeth, files can not be overlapped or stacked with other tools; Do not use a file too quickly or it will wear out too quickly,
- File to avoid water, oil, or other dirt;
- Thin files are not allowed to file soft metal;
- Use mixed files should not be too large, so as not to break.
Range of materials for rotary burrs
After knowing the range of materials to be processed
The second is the application of cut of burrs.
Cuts for universal application
Cuts for high-performance application
Different shapes of rotary burrs
What is the corresponding application scenario?
Shape and application of rotary burrs
Application example
-Deburring
-Shape finishing
-Edge/Chamfer finishing
-Preparatory milling for surfacing
-Prepare for weld cleaning
-Clean casting material
-Improve the geometry of the workpiece
The meaning of a rotary file for a product is often people say the phrase: “the devil is in the details.”
Please feel free to contact Fitcarbide company if you have any questions about carbide burrs!
We are a professional manufacturer of carbide burrs since the 2007 year.
