Preparation method for controllable nitriding-physical vapor deposition (PVD) composite coating of high-speed steel tool

A technology of composite coating and high-speed steel, which is applied in the direction of coating, metal material coating process, solid-state diffusion coating, etc., can solve the problems of high nitrogen content in the nitriding layer, high nitrogen potential, and affecting the toughness of the cutting edge
CN110656301AActive Publication Date: 2020-01-07台州普拉帝涂层有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
台州普拉帝涂层有限公司
Publication Date
2020-01-07

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Abstract

The invention discloses a high-performance high-speed steel tool with a gas low-nitrogen potential precision controllable nitriding-physical vapor deposition (PVD) composite coating. A tool substrateis a high-speed steel substrate, and a structure is a tempered martensite structure; a low-nitrogen potential precision controllable nitriding layer mainly contains a nitrogen-containing unsaturated martensite structure, alloy nitride, an alloy nitride and carbon compound and alloy carbide, does not contain a compound layer and a crystal boundary structure or a vein structure; and the nitriding layer and the PVD coating are both a common AlCrN coating.
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Description

technical field

[0001] The invention relates to a high-performance high-speed steel low nitrogen potential precision controllable nitriding-PVD composite coating, in particular to a low nitrogen potential precision controllable nitriding-PVD composite coating tool and a preparation method thereof. Background technique

[0002] With the rapid development of modern manufacturing industry, more and more products require machining such as cutting, milling and drilling. The annual consumption of various cutting tools in our country is more than 20 billion yuan, and the performance of cutting tools directly affects the quality of products and the life of cutting tools. At present, during the processing of high-speed steel tools, the tool is faced with high cutting force and cutting vibration, and there is severe friction, wear and thermal shock between the cutting edge of the cutting tool tip and the workpiece to be processed, and the processing temperature of the cutting edge of ...

Claims

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