Coatings for cutting tools

S coat – TiN (Titanium nitride) coating: for general applications
Suitable for applications:
– Cutting steel
– Punching and forming (when making materials with low hardness)
- Plastic blow mold.
– Pump pipe of diesel injection pump
– Medical equipment C coat
TiCN (Titanium carbon nitride) coating: abrasion resistance under roughing conditions TiCN coatings are classified by high strength and extreme hardness. Coated tools have outstanding wear resistance. Low coefficient of friction protects against cold welding. TiCN is not recommended for high temperature applications due to its relatively low maximum operating temperature. Threading and some milling applications are the best fit. Suitable for the following applications: – Milling (with coolant, medium cutting speed) – Thread cutting, thread pressing. – Punching, punching with high mechanical properties. – Forming with iron and manganese steel alloys – Plastic blow molding (melting with abrasives or high glass fiber content) A coat – TiAlN (Titanium aluminum nitride) coating : Heat and abrasion resistant Termites The optimized relationship between compressive stress and hardness of Titanium aluminum nitride TiAIN coating increases the blade stability of the cutting tool. Chemical corrosion resistance and insulation allow dry cutting and improved flexural strength. The high solidity of this single coating provides outstanding protection against wear and corrosion. Suitable for applications: – Hard alloy and high-temperature steel tools (Drilling, turning, dry cutting, high speed machining). – Plastic injection mold (mold with textured surface, processing of molten metal with fiberglass reinforcement). - Combustion engine details. Super-A™ Coating: optimized for high-speed machining and hard materials Super-A coating's hardness, oxidation resistance and thermal stability are optimized for machining applications high speed mechanics and hard materials. Even when working with tough and durable materials, the coating provides protection against stickiness and wear over a wide range of cutting speeds. Low friction property effectively reduces cutting force.
Suitable for applications:
– Processing difficult materials (titanium alloy, inconel)
– Machining hardness > 52 HRC – High speed machining
– Hard alloy end mills
Nano-A™ Coating: Heat and corrosion resistant micro-coating Guhring's newest PVD coating is Nano-A. It is a multilayer coating that combines TiAIN and AITiN in a microscopic single-layer structure that is more resistant to corrosion and harder. Thus the TiAIN coating has an oxidation temperature of approximately 1,650oF and the solidity is increased to 3,800 (HV 0.05). The microlayer structure of nano-A makes it a better choice for common applications of ALTiN, such as steels and materials with hardness greater than 45HRC. On the other hand, the test results also show that Nano-A is also the best coating for applications: – Hard alloy cutting tools used for alloy steels, stainless steels, aerospace materials cylindrical (drilling, milling, turning)
F coat – FIREX® Coating : multilayer heat and abrasion resistant FIREX is a multilayer coating that provides the impact resistance of TiCN coating plus the heat resistance of TiAlN coating. This universal coating was developed initially for dry machining but has since become the most popular heat resistant coating. FIREX is a multilayer combination of TiN and TiAIN coatings that provide thermal stability and wear resistance both at high temperatures and in non-thermal applications.
Suitable for applications:
– Hard alloy and cobalt steel cutting tools (drilling, milling, turning).
- Punch punch.
- Wear resistant details.
– Tooth roller milling cutter, sharpening knife.
Nano-FIREX® Coating : FIREX Latest Generation FIREX Coating is a hardened PVD coating that combines the wear and heat resistance of TiAIN with the capabilities of the universal universal coating TiN, all in one construction. multilayer architecture. TiAIN in the structure raises the oxidation temperature (the temperature at which the coating combines with oxygen in the air and breaks down), or operating temperature up to 1,470oF. This is much higher than TiCN, which has an oxidation temperature of 840oF. Another characteristic of TiAIN coating is that at high temperature the coating will have a surface hardness of approximately 3,300 (HV 0.05), more than 3 times the hardness of TiCN. The multilayer construction that combines TiAIN with TiN improves abrasion and impact resistance that is not available with standard single or single coat coatings.
Guhring's Nano-FIREX® coating has the same TiAlN/TiN composition as the standard FIREX coating, but with a newer and smaller multilayer texture. Nano-FIREX has more combined thin layers with the same coating thickness than the original FIREX layer. This increases the protective properties, especially in applications where impact is predominant.
Suitable for applications:
– Hard alloy and cobalt steel cutting tools (drilling, milling, turning)
– Punching punches – Wear resistant details
– Tooth roller milling cutter, sharpening knife
M-coat – MolyGlide® Coating (based on MoS 2) : Reduced material adhesion MolyGlide coating, with low coefficient of friction, high sliding properties, is deployed mainly to reduce adhesion (abrasion) , semi-adhesive, cold-welded) and can also withstand low-lubrication or dry running