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纳狮常用铣刀涂层切削刀具涂层

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.

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.

TypecolorCoating hardness (HV)Antioxidant temperature ℃Coefficient of frictionCoating thickness μmApplication 
Composite TiNGolden 20005000.252-3General-purpose steel processing; better adhesion resistance
TX-SGolden35008000.254-6General steel, cast iron, stainless steel universal coating
AMLPurplish black33008000.33-4General steel processing
AMRBronze color420010000.32-3For stainless steel, high hardness materials; wear-resistant and high temperature resistant
AMTGray400012000.33-4For hard-to-machine materials such as high-hardness, nickel-based alloys, etc.

Useful information:

  • 纳狮刀片涂层应用推荐,是经过客户对比测试的大数据汇总而成。如果刀具寿命不理想,可以尝试更换基材和刀型。同时,我们也欢迎提供对比样件测试,以不断提升涂层品质。
  • 纳狮PVD刀片涂层专页下载

Typical Tool Coating Applications

▼ 01 HIPIMS-Prepared TIB2 Coatings for Titanium Alloy Cutting Tools

Titanium alloy material machining process cutting force, high temperature, resulting in rapid tool wear, machining process time-variant enhancement, although to ensure that the size and form accuracy of the components to meet the design requirements, but the surface of the workpiece will appear machining cutter marks, prismatic damage, surface microcracks, machining hardening, tissue damage and other surface integrity issues.

TiB2 coatings are prepared using Hipims technology, which is characterized by high dissociation rate, high energy, dense prepared coatings, low stress, and less prone to chipping. At the same time TiB2 coating tool surface oxidation produced by the B2O3 liquefied film, play a self-lubricating effect, reduce sticky sticky. With a small amount of wear, it can effectively extend the service life of titanium alloy cutting tools.

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▼ 02 Blade Coating for Medium-Speed Dry Cut Roughing with Strong Impact Conditions

TiB2 coatings are prepared using Hipims technology, which is characterized by high dissociation rate, high energy, dense prepared coatings, low stress, and less prone to chipping. At the same time TiB2 coating tool surface oxidation produced by the B2O3 liquefied film, play a self-lubricating effect, reduce sticky sticky. With a small amount of wear, it can effectively extend the service life of titanium alloy cutting tools.

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