Analysis of the hottest composite machining servic

Analysis of composite material machining service plan

with the new generation of carbon fiber reinforced plastic (CFRP) and laminated wearable equipment, high-performance materials with fashionable appearance, comfortable touch, and easy design and processing are required. The materials are lighter and stronger, and the performance is continuously improved. In addition, some super hard materials are high, which have an increasingly prominent position in various fields such as snowboarding, rackets, military aircraft and automobiles. As a workpiece material, its long-standing main challenge is how to improve the manufacturing process, especially machining. Although it is used in fuselage or ship frame with excellent performance, all kinds of fiber-reinforced epoxy resin, polyester and vinyl plastics have high hardness, are difficult to cut, and cannot tolerate a little abnormal deviation in the processing process. Moreover, the added value of pre-processing is high, and the generation of waste products is not allowed. Fortunately, a new generation of special tools have emerged, solving the most common processing needs of various composite materials

at present, the preferred tool solution for cutting composite materials is to use integral cemented carbide as the matrix, thin PVD diamond (PCD) coating, brazing PCD blades or sintering PCD at the cutting edge. In thousands of applications for various advanced composite materials, iska's above tools are superior to most other similar products (including CVD diamond coated carbide tools). The harder the material, the higher the density of the reinforcing fiber, and the greater the room for process improvement

from the perspective of tools, the integral cemented carbide tools have the rigidity and dimensional accuracy necessary to ensure the dimensional precision tolerance, positional tolerance and surface finish of the workpiece. Integral cemented carbide also makes it possible to optimize the cutting geometry, which can reduce cutting force, cutting heat, uncut fibers, cupping, wiredrawing, fuzzing and other problems, and better control chip

thin PVD diamond (PCD) coating (applied to integral cemented carbide tools or PCD blades) makes the cutting edge more wear-resistant, so as to ensure that the tool maintains its original geometric structure in a long processing cycle. The secret lies in the realization of PVD diamond (PCD) thin coating. They not only provide the wear resistance of diamond, but also help to maintain the ideal cutting geometry of cemented carbide tools. In contrast, CVD (chemical vapor deposition) coating inevitably forms a thicker diamond coating, which is not conducive to the optimization of geometric structure

mainstream composite processing tools

as mentioned above, diamond reinforced drill bits with integral cemented carbide matrix have proved to be very successful. Because when processing composite materials, they can maintain a sharper state for a longer time than ordinary integral cemented carbide tools

milling carbon fiber materials

at present, there are four kinds of diamond reinforced tools on the market suitable for processing composite materials:

(1) CVD diamond coated cemented carbide - both the high wear resistance of diamond and the dimensional accuracy of cemented carbide tools. The disadvantage is that the coating is thick, which may reduce the sharpness of the cutting edge, and even make the cutting edge deviate from the correct geometry with the development and utilization of new materials

(2) PVD diamond coated cemented carbide has the advantages of high wear resistance of diamond and dimensional accuracy of cemented carbide tools. The cutting edge is sharper and the geometry of the cutting edge is better controlled

(3) braze the diamond blade on the integral cemented carbide substrate - it is suitable for the situation that only the front edge of the tool has diamond wear resistance requirements

(4) high pressure integrally sintered diamond (PCD) integrally cemented carbide bit - its feature is that the sintered diamond (PCD) is in the cutting groove of the integrally cemented carbide tool

note: the reprinted content is indicated with the source. The reprint is for the purpose of transmitting more information, and does not mean that it agrees with its views or certifies the authenticity of the content of the civil building lighting design standard GBJ 133 (9) 0