Mo-Se-Ta+TiAlTaN soft and hard composite coated tool and manufacturing method thereof

A soft-hard composite, soft coating technology, applied in coating, metal material coating process, ion implantation plating and other directions, to achieve the effect of simple preparation method, long service life and good lubricating performance

Active Publication Date: 2018-03-23
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are no reports of Mo-Se-Ta+TiAlTaN soft-hard composite coating tools at home and abroad

Method used

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  • Mo-Se-Ta+TiAlTaN soft and hard composite coated tool and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The above-mentioned Mo-Se-Ta+TiAlTaN soft-hard composite coating tool and its preparation method include the following steps:

[0020] (1) Pretreatment: Grind and polish the high-speed steel as the base material of the tool to the mirror surface, put it in alcohol and acetone and ultrasonically clean it for 20 minutes each to remove surface oil stains and other pollutants, use a vacuum drying oven to fully dry it and quickly put it into the vacuum chamber of the coating machine , the background vacuum of the vacuum chamber is 7.0×10 -3 Pa, heat to 220°C, keep warm for 30min;

[0021] (2) Ion cleaning: pass the working gas Ar 2 , the pressure is 0.8Pa, the bias power supply is turned on, the voltage is 750V, the duty cycle is 0.2, and the glow discharge cleaning is 20min; With a current of 50A, ions bombard the Ti target for 2 minutes;

[0022] (3) Deposition of Ti transition layer: adjust Ar 2 The air pressure is reduced to 0.5Pa, the bias voltage is reduced to 150V...

Embodiment 2

[0029] The above-mentioned Mo-Se-Ta+TiAlTaN soft-hard composite coating tool and its preparation method include the following steps:

[0030] (1) Pretreatment: Grind and polish the cemented carbide as the base material of the tool to the mirror surface, put it into alcohol and acetone and ultrasonically clean it for 30 minutes each, remove surface oil stains and other pollutants, use a vacuum drying oven to fully dry it, and then quickly put it into the coating machine to vacuum chamber, the background vacuum of the vacuum chamber is 7.0×10 -3 Pa, heat to 230°C, hold for 40min;

[0031] (2) Ion cleaning: pass the working gas Ar 2 , the pressure is 1.2Pa, the bias power supply is turned on, the voltage is 900V, the duty ratio is 0.2, and the glow discharge cleaning is 30min; Current 65A, ion bombardment Ti target 2min;

[0032] (3) Deposition of Ti transition layer: adjust Ar 2The air pressure is reduced to 0.6Pa, the bias voltage is reduced to 200V, and the arc plating is ...

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Abstract

The invention discloses a Mo-Se-Ta+TiAlTaN soft and hard composite coated tool and a manufacturing method thereof. The coated tool comprises a tool matrix material which is high-speed steel or hard alloy; and a Ti+TiN transition layer, a TiAlTaN hard coating, a Zr transition layer and a Mo-Se-Ta soft coating are sequentially arranged from a tool matrix to a surface coating. The manufacturing method for the coated tool adopts a multi-arc ion plating and medium-frequency magnetron sputtering mode, and comprises the steps of depositing the Ti+TiN transition layer, depositing the TiAlTaN hard coating, depositing the Zr transition layer and depositing the Mo-Se-Ta soft coating. The coated tool disclosed by the invention has relatively high hardness, has very good lubricating performance and a low friction coefficient, has very good thermal stability, oxidization resistance, corrosion resistance and abrasion resistance, and has a wide application prospect; and the preparation method is simple and is easy to operate.

Description

technical field [0001] The invention belongs to the field of mechanical cutting tool manufacturing, and in particular relates to a Mo-Se-Ta+TiAlTaN soft-hard composite coating tool and a preparation method thereof. Background technique [0002] As a hard coating, TiN coating has been widely used on cutting tools, cutting tools and various mold surfaces as a wear-resistant and corrosion-resistant layer. However, as a tool coating, the TiN coating exhibits the disadvantages of low oxidation resistance temperature and low hot hardness during the cutting process. In order to improve the hardness and thermal stability of TiN coating, various hard coatings such as TiSiN, TiCrN and TiAlN have been further developed. However, as a tool coating, during the cutting process, the friction coefficient between the hard-coated tool and the workpiece is high, and the cutting force is large, resulting in high cutting temperature, reduced tool life, and affected surface quality of the machin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C14/16C23C14/18C23C14/32C23C14/35
CPCC23C14/0021C23C14/0036C23C14/0641C23C14/0688C23C14/16C23C14/18C23C14/325C23C14/352
Inventor 邢佑强高俊涛吴泽李晓孙东科刘晓军
Owner SOUTHEAST UNIV
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