Carbon Finber Reinforced Composite (CFRP) has high strength hardness, high temperature resistance and good anti-fatigue performance. It is widely used in large-scale aircraft, space transportation and other major engineering and new weapon equipment in China's aerospace field.
CFRP Cutting has the following characteristics: easy to produce delamination, tear, burr and other defects during the cutting process, the processing quality is not easy to ensure; high hardness fiber material rebound and powder chip exacerbated the wear of the tool; the thermal expansion coefficient of the matrix and fiber material is different, and easily produce residual stress in the processing; chips in the form of dust, processing environment bad, need special chip removal system.
At present, cutting CFRP is mainly focused on cutting mechanism, tool wear mechanism, processing surface quality, tool selection and so on. CFRP is a typical hard-to-machine material. The cutting process is affected by the tools cutting data and the tools data, also affected by the performance of the resin and the fiber.
We make comparison on the carbide insert, PCD Insert and CBN Tools, we found that the carbide insert performance for the flank abrasive wear, chipping and rake face bonding wear; PCD tool wear in the form of chipping and abrasive wear Etc .; the main failure form of the coating tool is the coating peeling, abrasive wear, micro-chipping and chip adhesion.
The cutting tools choice for machining CFRP
CFRP is a typical difficult to machine material, it requires high on the tool material. When choosing cutting tools for machining CFRP, carbide insert and the diamond coating tools are widely used. PCD Tools are not widely used at that time. And now halnn already launch new PCD Tools for machining CFRP materials. And we also make testing with CBN Inserts, Diamond Coating Tools and PCD Tools on machining CFRP Materials. We found that PCD Tools perform well with PCD Tools. Because PCD Tool have sharp cutting edge, high hardness and strength, low surface friction coefficient and can reduce the cutting force, cutting heat and inhibit the burr and other processing defects. The hardness and strength of solid carbide insert is adaptability, it is conducive to control the distribution of cutting force, access to high-quality processing surface, but it’s easy to wear and tear, the wear resistance for cutting CFRP is still insufficient, it can be coated. When drilling CFRP, the diamond coating can significantly improve the anti-wear effect, and AlTiN coated tool anti-wear effect is not significantly. The axial force of drilling CFRP with hard alloy coated diamond drill bit is 30% lower than that of uncoated drill bit, and the life of drill bit is greatly improved. However, the coating tool is widely used in CFRP processing, The tool will quickly wear failure, and PCD tool does not exist this problem, its long life, high processing accuracy, has become the preferred tool for high-precision CFRP processing.
With More than Ten years of experience In the super-hard tool industry, in the PCD tool processing carbon fiber composite materials, Halnn will provide you with the most suitable tool materials and the most complete tool solutions. Of course, Halnn Superhard can also provide you with PCD tool material for other materials such as Al, Au, Cu and other non-ferrous metals.
If you have any PCD Tools needs, please contact me in time, my email is info@halnntools.com, Or Leave message to me whatsapp:+8615617635382