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Carbon Drill Bit High Hardness, Very Wearable

Danyang Youjie Tools Co.,Ltd | Updated: May 10, 2017

Carbon Carbon Drill Bit Bit The Carbon Drill Bit bit is a tool used to Carbon Drill Bit holes or blind holes in the solid material and to reaminate the holes. Commonly used Carbon Drill Bit bit mainly twist Carbon Drill Bit, flat Carbon Drill Bit, center Carbon Drill Bit, deep hole Carbon Drill Bit and nesting Carbon Drill Bit bit. Reaming Carbon Drill Bit bits and countersunk Carbon Drill Bit bits can not Carbon Drill Bit holes on solid materials, but they are also routinely classified as Carbon Drill Bits. Printed board Carbon Drill Biting bits are generally used carbide, because the epoxy glass cloth complex copper plate on the tool wear particularly fast. The so-called carbide Carbon Drill Bit bit is based on tungsten carbide powder as a matrix, cobalt powder as a binder by pressing, sintering made. Usually containing tungsten carbide 94%, cobalt 6%.

Because of its high hardness, very wear-resistant, have a certain strength, suitable for high-speed cutting. But the toughness is poor, very brittle, in order to improve the performance of cemented carbide, and some used in the carbonization of the matrix vapor deposition of a layer of 5 to 7 microns of special hard titanium carbide (TIC) or titanium nitride (TIN), With higher hardness. Some use of ion implantation technology, titanium, nitrogen, and carbon into the substrate of a certain depth, not only to improve the hardness and strength and re-grinding in the Carbon Drill Bit when these injections can also move. There is also a physical method in the top of the twist Carbon Drill Bit to generate a layer of diamond film, greatly improving the hardness and wear resistance of the Carbon Drill Bit.

Carbon Carbon Drill Bit Bit The hardness and strength of the cemented carbide are not only related to the ratio of tungsten carbide to cobalt, but also to the particles of the powder. Ultra-fine particles of carbide Carbon Drill Bit, the average size of its tungsten carbide grain size below 1 micron. This bit, not only high hardness and compression and bending strength are improved. In order to save costs Now many Carbon Drill Bit bits with welded handle structure, the original Carbon Drill Bit bit as a whole are carbide, and now the rear of the Carbon Drill Bit handle with stainless steel, the cost greatly reduced but due to the use of different materials, the dynamic concentricity is less than the overall hard Alloy Carbon Drill Bit bits, especially in small diameter.

The Carbon Drill Bit bit is a widely used hardware for our engineering machinery. It is used to Carbon Drill Bit holes or blind holes in the solid material and to Carbon Drill Bit holes in existing holes. But different operating environment we choose the different types of Carbon Drill Bit bit, commonly used Carbon Drill Bit bit are twist Carbon Drill Bit, flat Carbon Drill Bit, center Carbon Drill Bit, deep hole Carbon Drill Biting and nesting Carbon Drill Bit.

Twist Carbon Drill Bit is the most widely used hole machining tool. Usually in the range of 0.25 to 80 mm in diameter. It consists mainly of working parts and handles. The working part has two spiral grooves, shaped like twist, hence the name. In order to reduce the friction between the guide part and the hole wall during the Carbon Drill Biting, the twist Carbon Drill Bit is gradually tapered from the Carbon Drill Bit tip toward the handle. The helix angle of the twist Carbon Drill Bit mainly affects the size of the rake angle, the flap strength and the chip removal performance, usually 25 ° ~ 32 °. The helical groove can be machined by milling, grinding, hot rolling or hot extrusion. The front end of the Carbon Drill Bit is sharpened to form the cutting part. Standard twist Carbon Drill Bit part of the cutting angle of 118, horizontal blade angle of 40 ° ~ 60 °, the rear angle of 8 ° ~ 20 °. Due to structural reasons, the rake angle at the outer edge of the large, gradually reduced to the middle, the horizontal edge at the negative rake angle (up to -55 °), Carbon Drill Biting from the extrusion effect. In order to improve the cutting performance of the twist Carbon Drill Bit, the cutting part can be ground into various shapes (such as group Carbon Drill Bits) according to the nature of the material being processed. Twist Carbon Drill Bit handle in the form of two kinds of straight handle and taper shank, the former is caught in the Carbon Drill Bit chuck, the latter inserted in the machine tool spindle or tailstock in the cone hole. General twist Carbon Drill Bit made of high speed steel. Inlaid carbide or blade crown twist Carbon Drill Bit for processing cast iron, hardened steel and non-metallic materials, etc., the overall carved carbide twist Carbon Drill Bit for processing instrument parts and printed circuit boards and so on.

The cutting part of the flat Carbon Drill Bit is a spade, simple structure, low manufacturing cost, easy cutting of the cutting fluid into the hole, but poor cutting and chip removal performance. The structure of the flat Carbon Drill Bit is both monolithic and assembled. The overall type is mainly used for Carbon Drill Biting holes with a diameter of 0.03 to 0.5 mm. Assembly of flat Carbon Drill Bit blade can be replaced, can be used within the cooling, mainly for Carbon Drill Biting diameter of 25 to 500 mm large holes.

Deep hole Carbon Drill Biting is usually refers to the processing hole depth and aperture ratio of more than 6 holes of the tool. Commonly used gun Carbon Drill Bit, BTA deep hole Carbon Drill Biting, jet Carbon Drill Biting, DF deep hole Carbon Drill Biting and so on. Casing Carbon Drill Bit is also commonly used for deep hole machining.

Carbon Drill Biting holes are 3 to 4 teeth, the rigidity than the twist Carbon Drill Bit, used to expand the existing holes and improve the processing accuracy and finish.

Countersunk Carbon Drill Bit with more teeth, the forming method to the end of the hole into the required shape for the processing of a variety of countersunk head screw head hole, or flatten the hole outside the end of the face.

Center Carbon Drill Bit for the Carbon Drill Biting shaft of the workpiece center hole, it is essentially a small spiral angle twist Carbon Drill Bit and countersink Carbon Drill Bit compound, it is also known as composite center Carbon Drill Bit.

The middle of the hollow Carbon Drill Bit pipe is a hollow Carbon Drill Bit bit, mainly used for Carbon Drill Biting core.



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