The material used to make the tool must have high high temperature hardness and wear resistance, necessary bending strength, impact toughness and chemical inertness, good processability (cutting, forging and heat treatment, etc.) and not easily deformed.
Cemented carbide inserts generally have high wear resistance when the material hardness is high, and high impact strength when the bending strength is high. However, the higher the hardness of the material, the lower the bending strength and impact toughness. High-speed steel is still the most widely used tool material due to its high flexural strength and impact toughness, as well as good processability, followed by hard alloys.
Polycrystalline cubic boron nitride is suitable for cutting high hardness hardened steel and hard cast iron; polycrystalline diamond is suitable for cutting iron-free metals, and alloys, plastics and glass steel; carbon tool steel and alloy tool steel are now only used Tools such as trowels, dies and taps.
Carbide insert
Carbide indexable inserts have now been coated with titanium carbide, titanium nitride, alumina hard or composite hard layers by chemical vapor deposition. The growing physical vapor deposition method can be used not only for cemented carbide tools, but also for high speed steel tools such as drills, hobs, taps and milling cutters. As a barrier to chemical diffusion and heat conduction, the hard coating slows the wear of the tool during cutting, and the life of the coated blade is about 1 to 3 times higher than that of the uncoated one.
Due to the high temperature, high pressure, high speed, and parts working in corrosive fluid media, more and more difficult materials are applied, and the automation level of cutting and the processing precision are getting higher and higher. In order to adapt to this situation, the development direction of the tool will be to develop and apply new tool materials; further develop the vapor deposition coating technology of the tool, and deposit a higher hardness coating on the high toughness and high strength substrate to better solve The contradiction between the hardness and strength of the tool material; further develop the structure of the indexable tool; improve the manufacturing precision of the tool, reduce the difference in product quality, and optimize the use of the tool.
Screw machining and screw machine products with metal materials are all acceptable finished. The primary hardware materials of screw machined parts can be finished including copper, iron, aluminum and stainless steel. As a screw machined parts manufacturer, we specialize in processing long screw with hexagon sockets, precise and slender axle accessories. The best quality and high precision screw machining parts can be provided you the most competition price.
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