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Almocn gradient composite coating cutting tool and preparation method thereof

A composite coating and cutting tool technology, applied in the direction of coating, metal material coating process, vacuum evaporation plating, etc., to achieve the effect of extending durability, high hardness and strength, reducing friction and bonding

Active Publication Date: 2019-08-23
JINING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the performance and preparation method of existing carbonitride coating tools, and provide a kind of AlMoCN gradient composite coating tool and its preparation method in combination with the advantages of multi-component composite coating structure

Method used

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  • Almocn gradient composite coating cutting tool and preparation method thereof

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Embodiment 1

[0024] The AlMoCN gradient composite coating tool and its preparation method of the present invention, the tool is a common milling blade, its base material is: cemented carbide M05, the deposition method is a composite coating method using unbalanced magnetron sputtering+arc plating, Two unbalanced magnetron sputtering AlMoC composite targets and two arc plating Ti targets were used for deposition. First, the Ti transition layer was deposited by arc plating, and then the AlMoC transition layer and the AlMoCN gradient composite coating with gradually changing nitrogen content were deposited by unbalanced magnetron sputtering. Specific steps are as follows:

[0025] (1) Pretreatment: Polish the surface of the tool base to remove impurities such as oil stains and rust on the surface, then place them in alcohol and acetone in turn, and ultrasonically clean them for 20 minutes each to remove oil stains and other attachments on the tool surface, and dry them with a hair dryer quick...

Embodiment 2

[0032] AlMoCN gradient composite coating cutter of the present invention and preparation method thereof, this cutter is common twist drill bit, and its cutter base material is: high-speed steel W18Cr4V, and deposition mode is the composite coating method that adopts unbalanced magnetron sputtering+arc plating, during deposition Two unbalanced magnetron sputtering AlMoC composite targets and two arc plating Ti targets were used. First, the Ti transition layer was deposited by arc plating, and then the AlMoC transition layer and the AlMoCN gradient composite coating with gradient nitrogen content were deposited by unbalanced magnetron sputtering. Its preparation method is:

[0033] (1) Pre-treatment: Polish the surface of the tool base to remove surface oil, rust and other impurities, then place them in alcohol and acetone in turn, ultrasonically clean them for 20 minutes each, remove oil and other attachments on the tool surface, and dry them with a hair dryer quickly Put it i...

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Abstract

The invention belongs to the field of machining cutting tools, and particularly relates to an AlMoCN gradient composite coating tool and a preparing method thereof. The AlMoCN gradient coating tool is prepared through the coating with an unbalanced magnetron sputtering and arc plating composite coating method. The coating tool sequentially comprises a tool base body, a Ti transition layer, an AlMoC transition layer and an AlMoCN gradient composite coating with the nitrogen content gradually changing in a gradient manner front interior to exterior. In an AlMoCN ultrahard carbohydrates and nitrogenous compound coating, due to the fact that the Al element and the Mo element are added in the coating at the same time, and the content of the nitrogen which is the structure component of the coating gradually changes in a gradient manner, the comprehensive using performance of the tool can be improved. The coating tool has very high hardness and strength, low surface friction coefficient, good diffusion abrasion resisting performance and excellent friction abrasion characters. In the cutting process, friction and cuttings bonding of the tool in the dry cutting process can be reduced, the cutting force and the cutting temperature can be reduced by 35% or above, the heat stability of the coating tool is improved by 50% or above, the service life of the tool is prolonged by 70% or above, and durability of the tool is improved by 70% or above.

Description

technical field [0001] The invention belongs to the field of mechanically manufacturing metal cutting tools, in particular to an AlMoCN gradient composite coating tool and a preparation method thereof. Background technique [0002] With the development of modern industry, more and more wear-resistant, heat-resistant and high-hardness engineering materials have been developed, and the improvement of workpiece material level will inevitably lead to accelerated wear of tools during processing. From high-speed steel cutting tools to cemented carbide cutting tools, to superhard material cutting tools, to coated carbide cutting tools, and multi-component composite coating cutting tools, cutting tool technology has developed rapidly. With the development of the tool level, the multi-component composite coated carbide tool with superior cost performance and comprehensive performance has become the first choice. At present, the use of coated tools in industrially developed countries...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/35C23C14/32C23C14/18C23C14/16C23C14/06
Inventor 宋文龙郭宗新王首军张璇
Owner JINING UNIV
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