CVD technology-En

Machining Kevlar: Challenges, Techniques, and Specialized Tools​

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Kevlar composites such as K-1226 AFRP offer exceptional characteristics, making them ideal for aerospace, defense, and automotive applications. However, their anisotropic nature and abrasive fibers make machining challenging, often resulting in fiber pull-out, tool clogging, and rapid wear. This article discusses machining strategies, including optimized tool geometry, cryogenic cooling, parameter adjustment, and surface reinforcement techniques (e.g., fiberglass overlays) to improve tool life and surface quality.

The Significant Difference between Nanocrystal and Microcrystal CVD Diamond Coating Technology-En

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Nanocrystal coatings are smooth, dense, and feature a low coefficient of friction, reduced cutting resistance, and lower cutting heat, resulting in superior surface finish and faster cutting parameters (S, F).
Compared to microcrystal diamond coating, tool life of nanocrystal diamond coated tool is significantly extended.
Nanocrystal-coating costs are approximately 50% higher than microcrystal coatings. For example, using a standard D6 * 65 end mill, the cost increases by about $3 per tool.

​Breakthrough in Graphite Machining: Ultra-Long Diamond-Coated End Mills

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Addressing coating difficulties in 10×-diameter ultra-long end mills (10×diameter length) for graphite electrode machining, this study introduces ​dynamic pressure-compensated fixtures and ​gradient multi-stage deposition. By applying 5-8 diamond layers (5-10μm per stage) with stress-relief annealing, the solution resolves adhesion and thermal distortion issues in 10×-length edges, achieving 10× longer tool life for ​high-performance graphite electrode production.

Carbide Indexable Inserts with CVD Diamond Coating for Graphite and Carbon Milling-

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This article highlights the technical advantages and applications of ​carbide indexable inserts with CVD diamond coating in graphite milling. With CVD diamond coating， ISO inserts obtain extra-long life and high-speed cutting capabilities, while their multi-edge design reduces machining costs. The modular structure supports operations such as face milling, contour milling, and slot milling, with quick blade replacement enhancing productivity.