Coating post-processed indexable blade and manufacturing method thereof

Abstract

The invention discloses a coating post-processed indexable blade and a manufacturing method thereof. According to manufacturing method, when a coating is made on a base body, following substances aredeposited on the surface of the base body through a chemical vapor deposition (CVD) method, the coating is a hard layer system with the total thickness being 5-40 [mu]m, and the hard layer system comprises at least one layer selected from titanium carbide, titanium carbonitride, aluminium oxide, titanium carbonyl and titanium nitride, an aluminium oxide layer with the thickness being 1-10 [mu]m and located on the subsurface of the coating and a titanium nitride layer with the thickness being 0.1-3 [mu]m and located on the surface of coating; coating post-processing comprises the steps that, first, the coating on the positioning surface is completely removed, and then the titanium nitride layers on a blade line and the inclined surface are removed at least. According to the coating post-processed indexable blade and the manufacturing method thereof, on the one hand, the role of preventing jitter and improving the surface finish of the machining working condition with high feed and the high speed can be played, on the other hand, conduction of residual heat in the blade to a blade body can be accelerated, and meanwhile, the impact resistance ability of product cutting can also be improved.

Description

technical field [0001] The invention relates to a coated cutting tool for metal cutting and forming processing and a production method thereof, in particular to an indexable insert for post-coating treatment and a production method thereof. Background technique [0002] Modern high-production-efficiency metal cutting and forming processes require reliable tools with excellent wear resistance and impact resistance. In order to improve the wear resistance of cutting tools, the existing technology is usually to coat the substrate with a wear-resistant coating, which is wear-resistant Damage coatings are generally multilayer types, the most common ones include TiC (titanium carbide), TiCN (titanium carbonitride), TiN (titanium nitride) and Al 2 o 3 (aluminum oxide), etc., generally use CVD (chemical vapor deposition) to deposit different layers on the substrate (such as cemented carbide) when making a coating. Improving impact resistance is generally achieved by using a substr...

AI Technical Summary

Problems solved by technology

However, the coating cutting tool in the prior art has the disadvantages that due to the good heat insulation of the coating, the blade

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