Coated Tungsten Carbide Cutting Tools Use Limitations

Coated tungsten carbide cutting tools with excellent mechanical properties, can improve the machining efficiency and tool life. Rational use of coated tungsten carbide cutting tools are an effective way to reduce processing costs and improve product quality. Although coated tungsten carbide cutting tools, although many advantages, the use of more and more widely used, but it can not fully replace the ordinary uncoated tungsten carbide cutting tools.

(1) The strength and toughness of coated tungsten carbide cutting tools are lower than uncoated tungsten carbide cutting tools, coated tools and therefore not suitable for roughing and interrupted cutting big impact especially under heavy load, and is not suitable for processing with hard Quality inclusions material.
(2) In order to enhance the strength of the coating edge of the blade, blade coating blunt blade to go through treatment, thus coated blade is not sharp if not coated tungsten carbide cutting tools, it is not suitable for a small amount of feed (eg <0 .015mm ) finishing.
(3) Coated tungsten carbide cutting tool at a low speed, prone to flaking, chipping and other phenomena, it is not appropriate for low-speed cutting.
(4) coated tungsten carbide cutting tools are not suitable for processing heat-resistant alloys, titanium alloys, non-ferrous metals and non-metallic materials.
(5) General coated tungsten carbide cutting tools for deep hole drilling, cutting, threading and poor chip difficult to discharge machining results.




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