The main challenges of modern cutting tools

The application of high-performance materials is gradually increasing, and the machining is more difficult. The materials have higher hardness, tensile strength, viscosity, low thermal conductivity, hardened layers, etc. Typical difficult-to-machine materials include precipitation-hardened stainless steel, titanium alloys, high-temperature alloys, and so on. High efficiency and environmental protection have become the main demands of cutting processing. High-speed cutting, dry cutting and other methods are being widely used. Higher precision is required, and the long-term stability of the tooling system is more important.

• Type of tool3C milling cutters, micro drills, steel plate drills, taps, roll insert cutters, broaches, die cutters, etc.

PVD coatingCutter CoatingCNC Blade Coating

Advantages of Naxau Coatings on Cutting Tools

• In response to the challenges of modern cutting tools, Naxi has developed the unique ShRL four-layer tool coating system. The four layers are, in order, a stress-absorbing S-film closest to the substrate, a second layer of high hardness wear-resistant H-film, a third layer of high temperature-resistant R-film, and a top layer of low coefficient of friction L-film.
• PVD nano-coatings have super high hardness, but most of the manufacturers' coatings are too hard and chipped off at the edge as soon as they start cutting. The R&D engineers of NanoLion Coatings designed a stress absorbing S film under the thick high hardness h film, which dramatically increases the stability of the hard film and makes the tool life 2 to 5 times higher, which is an innovation in the coating industry. There is no micro-chipping of the hard coating on the cutting edge, and the surface of the cut product is much brighter, which meets the requirements of high-precision cutting.
• In response to the large number of temperature problems associated with high speed and dry cutting, NanoShield Coatings has designed a high-temperature-resistant R-film on top of a high-hardness h-film, so that the heat of cutting is repelled as much as possible from the tool, and most of the heat is carried away by the chips.
• A low friction coefficient L-film needs to be designed for the material to be processed, and different L-films need to be designed for different viscous materials such as stainless steel, titanium alloy, high temperature alloy, and so on.

Coating of turning inserts

Depending on the specific shape of the insert, the machine parameters (process, speed, etc.), the material to be machined (heat treatment process, hardness, etc.), different PVD insert coatings are recommended.

For end customers, batch processing materials are fixed, you can choose stainless steel, high temperature alloys and other specialized blade coating. For distributors who need to prepare stock, they can consider general-purpose coatings to cope with the needs of different processing materials.

Useful information:

• Recommendations for coating applications for Naxau blades are summarized from large data from customer comparison tests. If the tool life is not satisfactory, try changing the substrate and blade type. We also welcome comparative sample tests to continuously improve coating quality.
• Naxau PVD Blade Coating Page Download

Typical Tool Coating Applications