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 How to process carbon fiber cnc

Views : 99
Author : jett
Update time : 2021-11-29 15:25:14

                                                   How to process carbon fiber cnc

Carbon Fiber (CF) refers to a high-strength, high-modulus fiber with a carbon content of more than 90%. It is made from organic fibers (viscose-based, pitch-based, polyacrylonitrile-based fiber, etc.) cracked and carbonized in a high-temperature environment Become.

Compared with other materials, carbon fiber materials have the advantages of light weight and thinness, and can be used to make products of various complex shapes without special processing. Carbon fiber products are made by laminating and hot pressing carbon fiber prepregs. After molding, they have high hardness and high brittleness. This also leads to the need to pay attention to the later machining to prevent delamination and tearing. Follow Boshi Carbon Fiber to see how the machining should proceed.

 

During the machining of carbon fiber products, delamination and tearing are prone to occur, which will cause the performance of carbon fiber products to decline. Due to the higher strength of carbon fiber products, the cutting force is higher, especially for thicker carbon fiber products. . At this time, there will be a lot of heat around the hole, so it is recommended to choose cemented carbide or diamond drill bits when machining. Traditional twist drills are easy to cause debris accumulation. It is recommended to choose a drill with a central through hole and a cutting groove on the end surface. This facilitates the discharge of debris.

When drilling carbon fiber products, the shear stress of the cutter head along the linear velocity makes the surface layer of the carbon fiber material form a force of tearing and delamination without being bound. However, as the drill bit goes deeper, the drill bit will A certain taper is produced, and then there is a force perpendicular to the surface of the carbon fiber product, which can resist the force of tearing and delamination, which can ensure the overall mechanical properties of the carbon fiber product.

High-performance carbon fiber has excellent properties that are irreplaceable by a series of other materials, such as light weight, high strength, high modulus, high temperature resistance, corrosion resistance, erosion resistance and sputtering resistance, and good designability and compoundability. It is a rocket, Satellites, missiles, fighter jets, warships and other sophisticated weapons and equipment are indispensable strategic emerging materials.

As a strategic new material with excellent performance, carbon fiber has a density less than 1/4 of that of steel, but its strength is 5-7 times that of steel. Compared with aluminum alloy structural parts, the weight reduction effect of carbon fiber composite materials can reach 20%-40%; compared with steel metal parts, the weight reduction effect of carbon fiber composite materials can reach 60%-80%.

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