Many customer inquiries will ask what material we have? What does the coating do? Today through this news to briefly introduce the tap material and coating.
1. Taps Material
Taps rely heavily on materials, and selecting good materials can further optimize the structural parameters of the tap, making it suitable for efficient and more demanding working conditions, while also having a longer lifespan. At present, major tap manufacturers have their own material factories or material formulas, and due to cobalt resource and price issues, new cobalt free high-performance high-speed steel has also been introduced.
1) Tool steel: It is commonly used for hand cutting thread taps and is no longer common.
2) Cobalt free high-speed steel: currently widely used as tap material, such as M2 (W6Mo5Cr4V2, 6542), 4341, etc., marked with the code HSS.
3) Cobalt containing high-speed steel: currently widely used as tap material, such as M35, M42, etc., marked with the code HSS-E.
4) Powder metallurgy high-speed steel: used as a high-performance tap material, its performance is significantly improved compared to the above two, and the naming methods of each manufacturer are also different, with the marking code being HSS-E-PM.
5) Hard alloy material: usually selected with ultrafine particles and good toughness, mainly used for manufacturing straight groove tap processing short chip materials, such as gray cast iron, high silicon aluminum, etc.
Our company mainly produce HSS-M2、HSS-4341、HSS-E materials.
2. Taps Coating
The coating of the tap has a significant impact on the performance of the tap, but currently, it is mostly the manufacturer and coating manufacturer who cooperate separately to study specialized coatings.
1) Steam oxidation: The tap is placed in high-temperature water vapor to form a layer of oxide film on its surface, which has good adsorption on the coolant and can reduce friction, while preventing adhesion between the tap and the material being cut. It is suitable for processing soft steel.
2) Nitriding treatment: The surface of the tap is nitrided to form a surface hardening layer, suitable for processing materials such as cast iron and cast aluminum that have a high wear resistance to cutting tools.
3) Steam+Nitriding: Combining the advantages of the above two.
4) TiN: Golden yellow coating, with good coating hardness and lubricity, and good coating adhesion performance, suitable for processing most materials.
5) TiCN: Blue gray coating, with a hardness of approximately 3000HV and a heat resistance of up to 400 ° C.
6) TiN+TiCN: Deep yellow coating with excellent coating hardness and lubricity, suitable for processing the vast majority of materials.
7) TiAlN: Blue gray coating, hardness 3300HV, heat resistance up to 900 ° C, suitable for high-speed machining.
8) CrN: Silver gray coating with excellent lubrication performance, mainly used for processing non-ferrous metals.
Our company mainly produce Steam oxidation、 Nitriding treatment、TiN、TiCN、TiAlN coating.
Post time: Oct-23-2023