What are the methods of carbon fiber material processing

There are many machining methods for carbon fiber materials, such as traditional turning, grinding, drilling, etc., and non-traditional methods such as ultrasonic vibration cutting. The following analyzes several traditional processing processes of carbon fiber products and their corresponding functions, and further discusses the influence of process parameters on cutting performance and machined surface quality.

1. Turning

Turning is one of the most widely used processing methods in the processing of carbon fiber composite materials, and it is mainly used to achieve the predetermined dimensional tolerance of the cylindrical surface. Possible tool materials for carbon fiber turning are: ceramics, carbide, cubic boron nitride and polycrystalline diamond.

2. Milling

Milling is usually used for the processing of carbon fiber products with high precision and complex shapes. In a sense, milling can be considered as a correction operation, because milling can obtain a higher quality machined surface. During the machining process, due to the complex interaction between the end mill and the carbon fiber composite material, the delamination of the carbon fiber composite material workpiece and the burr of the uncut fiber yarn occur from time to time. In order to reduce the phenomenon of fiber layer delamination and burrs, we have gone through a lot of trials and explorations. Carbon fiber processing should choose carbon fiber engraving and milling machine, which has better dustproof performance and high processing accuracy.

3. Drilling

Carbon fiber parts need to be drilled before assembly by bolts or riveting. Problems in the process of carbon fiber drilling include: separation of material layers, tool wear, and processing quality of the inner surface of the hole. After testing, it can be known that cutting parameters, the shape of the drill bit, cutting force, etc. have an impact on the delamination phenomenon and the surface quality of the product.

4. Grinding

Aerospace, shipbuilding and other fields have extremely strict requirements on the machining accuracy of carbon fiber composite materials, and it is necessary to use grinding to achieve better machined surface quality. However, grinding of carbon fiber composites is much more difficult than that of metals. The research shows that under the same grinding conditions, when grinding multi-directional carbon fiber composite materials, the cutting force increases linearly with the increase of grinding depth, and is greater than the cutting force when processing unidirectional carbon fiber composite materials. The larger diameter of the damaged area of the carbon fiber workpiece and the ratio of the hole diameter can be used to analyze the delamination phenomenon, and the larger the delamination factor, the more serious the delamination phenomenon is proved.

The above is the content of the carbon fiber material processing methods introduced to you. If you don’t know anything about it, welcome to consult our website, and we will have professional people to explain it to you.