Composite materials are very suitable for many modern engineering fields such as aerospace, automobile, shipbuilding, electronics, etc. due to their inherent properties. The processing of composite materials has always been a challenging field, and the use of prepreg cutting machines provides an efficient and precise solution for this field.

Carbon fiber, glass fiber and prepreg have high strength, hardness and density, but poor processability. During processing, the following common defects exist in composite materials: delamination, tearing, fiber pull-out, etc. Traditional cutting tools may damage the internal structure of the material and affect its performance.

A prepreg cutter is a machine that cuts with a very sharp blade that uses high-frequency vibrations instead of simple cutting techniques. The blade can be driven by a special motor so it vibrates at a high frequency or rotates quickly. During the cutting operation, these movements can help avoid more friction between the blade and the composite material, thereby reducing the force of the cut. In addition, it can also increase the cutting speed.

Advantages of fiberglass and carbon fiber CNC cutting machines:

High cutting accuracy

For some composite parts with extremely high dimensional accuracy requirements, such as wing skins in the aerospace field, precision substrates of electronic equipment, etc., the glass fiber cutting machine can accurately control the cutting path, and its accuracy can reach millimeters or even micrometers, which can meet the cutting tasks with complex shapes and high precision requirements, and effectively reduce the workload of subsequent processing.

Avoid physical damage

Vibration cutting uses its characteristics to minimize the damage to the internal fiber structure of the composite material. It will not easily cause delamination or fiber breakage like ordinary cutting methods such as mechanical sawing, but maintain the mechanical and physical properties of the composite material, and improve the quality and reliability of the product.

High cutting efficiency

The carbon fiber cutting machine has a fast cutting speed and can quickly complete the cutting operation of the composite material. Of course, in mass production, its efficient cutting speed can greatly save production cycles and improve productivity. And it can be carried out continuously, and the required pause time can be reduced during the cutting process.

Strong adaptability

It can cut different types of composite materials. Whether it is carbon fiber composites, glass fiber composites or other new hybrid composites, the carbon fiber cutting machine can adapt by controlling parameters. It can also process composite materials of different thicknesses, from very thin composite plates to thicker structural components.

Operating steps of glass fiber and carbon fiber CNC cutting machine:

Machine settings

Turn on the prepreg cutter and make sure all systems and components are working properly.

Enter the cutting parameters in the control interface. For example, the cutting speed is usually set to 30 meters per minute.

The cutting depth needs to be adjusted precisely to ensure that the cut is complete and does not damage the workbench surface.

Drawing import

Import the CAD file of the carbon fiber part into the prepreg cutter control system. The software will automatically parse the graphic information and convert it into the motion path instructions of the cutting head.

The control system optimizes the imported path to ensure a smooth transition of the tool head motion trajectory and avoid unnecessary lifting and lowering of the tool to affect the cutting effect and efficiency.

Vacuum adsorption

The carbon fiber material is firmly fixed on the workbench using a vacuum adsorption device. The vacuum adsorption method is that the vacuum pump vacuums through the pores opened on the surface of the workbench. The negative pressure formed makes the carbon fiber fit closely to the table surface, avoiding movement during the cutting process, and can flatten the uneven material to ensure the accuracy of the cut piece. The advantage is that the fixation is fast and uniform without damaging the material surface.

Cutting

Start the carbon fiber cutting machine, and the vibrating cutter head starts to move along the preset path driven by the control system. The cutter head enters the carbon fiber for cutting in a high-frequency vibration state. The vibration frequency causes the blade to reciprocate up and down quickly in the vertical direction. This small amplitude vibration is combined with the horizontal advancement of the cutter head along the cutting path, effectively reducing the cutting resistance.

Application of prepreg cutting machine:

Aerospace Industry:

Composite carbon fiber is widely used in fuselage parts, wings, tails and other structural parts due to its high strength and low density. It can accurately cut very complex contours and shapes to meet high precision requirements, without delamination or thermal damage that may be caused by traditional cutting methods, ensuring material performance and structural strength.

Automobile Manufacturing:

The pursuit of lightweight and high performance of automobiles has led to the large-scale application of carbon fiber in automobile bodies, hoods, doors, chassis and other parts. Fiberglass cutting machines can quickly and accurately cut carbon fiber sheets and prepregs to meet the needs of mass production of automobiles, with smooth and neat cutting edges and no secondary processing, thereby improving production efficiency and product quality.

Sporting Goods

High-end bicycles often use carbon fiber frames and components to reduce weight and improve performance. Carbon fiber materials are also widely used in racket products such as tennis and badminton. Fiberglass cutting machines can cut parts with complex shapes and precise component sizes to meet the strict requirements of sports goods manufacturers for product quality and performance, while improving production efficiency and material utilization.

Wind Power Generation

Windmill blades are usually made of carbon fiber reinforced composite materials to increase the strength and stiffness of the blades while maintaining a low weight. Carbon fiber cutting machines can quickly cut large blade components, producing finished blades in just a few minutes.

CNC vibration knife cutting machine has proved its value in the field of composite material processing and effectively solved many existing problems in the field of composite material processing. With the continuous expansion of its importance and application scope, and the further improvement of processing accuracy and quality requirements, vibration knife cutting machine will play an increasingly important role in future industrial production, and its technology will continue to be improved and developed, bringing more convenience and innovation to the composite material processing industry.

AOL intelligent blade cutting machine has high precision and high efficiency. Our professional after-sales service can provide automatic cutting solutions for various industries.

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