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Laminated member with hard coating and preparation method of laminated member

A hard coating and coating technology, which is applied in the direction of coating, metal material coating process, sputtering plating, etc., can solve the problems that cannot meet the high-speed cutting of stainless steel well

Inactive Publication Date: 2012-07-11
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the HV hardness of ordinary TiAlN coatings is difficult to exceed 30GPa, and the oxidation resistance temperature is below 800°C, which can no longer meet the high-speed cutting of difficult-to-machine materials such as stainless steel.

Method used

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  • Laminated member with hard coating and preparation method of laminated member
  • Laminated member with hard coating and preparation method of laminated member
  • Laminated member with hard coating and preparation method of laminated member

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] The above-mentioned preparation method of the covered part 10 with a hard coating mainly includes the following steps:

[0033] A hard substrate 20 is provided, and the hard substrate 20 is decontaminated and cleaned. In this cleaning step, the hard substrate 20 can be placed in an ultrasonic cleaner filled with ethanol and / or acetone solution for vibration cleaning, so as to remove impurities and oil stains on the surface of the hard substrate 20, and then dried for later use.

[0034] Take the composition as Ti X Al Y m Z The composite target is the target material, and the hard substrate 20 is subjected to vacuum coating treatment, so as to coat the bonding layer 30 and the hard coating layer 40 on the hard substrate 20 . The bonding layer 30 is located between the hard substrate 20 and the hard coating 40 .

[0035] The vacuum coating process steps are as follows:

[0036] see figure 2 , a magnetron sputtering device 1 is provided, and the magnetron sputterin...

Embodiment 1-3

[0043]The materials for the hard substrates in Examples 1-3 are high-speed steel, cemented carbide, and die steel, and the samples of the hard substrates are placed in an ultrasonic cleaner filled with ethanol solution for vibration cleaning and then dried.

[0044] to Ti X al Y sc Z is the target material, and the specific composition of the target material is shown in Table 1. Vacuum coating treatment is performed on the hard substrate sample. The vacuum coating process includes sputtering to clean the target material, sputtering the bonding layer on the hard substrate sample and sputtering the hard coating on the bonding layer. The operation of the vacuum coating process is as described above, and the process conditions of each step of vacuum coating are shown in Table 1.

Embodiment 4-6

[0046] Examples 4-6 The materials selected for the hard substrates are high-speed steel, hard alloy and die steel respectively. Different from Example 1-3, the target material of Example 4-6 is Ti X al Y Dy Z , and the values ​​of X, Y and Z in the targets of Examples 4-6 are the same as those of Examples 1-3. In addition, the process conditions of each step of Examples 4-6 are respectively the same as those of Examples 1-3.

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Abstract

The invention provides a laminated member with a hard coating, which comprises a hard matrix, a bonding layer formed on the hard matrix, and a hard coating formed on the bonding layer, wherein the hard coating comprises TiXAlYMZN, wherein X, Y and Z respectively express percentages of atoms of Ti, Al and M, M is Sc or Dy, X+Y+Z=1, X is not less than 35 percent and not more than 45 percent, and Z is not less than 0.01 percent and not more than 1 percent. The invention also provides a method for preparing the laminated member by adopting a magnetron sputtering method. The laminated member with the hard coating has high hardness, better abrasion performance and high temperature oxidization resistance.

Description

technical field [0001] The invention relates to a covered part with a hard coating layer and a preparation method of the covered part. Background technique [0002] The coating process is widely used in the industrial field, among which, the titanium nitride (TiN) film is coated on the surface of the tool or the mold to improve the service life of the tool and the mold to a certain extent. However, with the development of metal cutting towards high cutting speed, high feed speed, long life, high precision and good cutting control, higher requirements are put forward for the performance of surface coating. TiN coatings have gradually failed to meet further requirements in terms of hardness, wear resistance, and oxidation and ablation resistance. [0003] Adding Cr, Al and other metal elements on the basis of TiN coating can further improve its hardness and oxidation resistance. Among them, the hardness and high temperature oxidation resistance of titanium nitrogen aluminum (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C14/35
CPCC23C14/0641C23C14/35Y10T428/12576Y10T428/265
Inventor 张新倍陈文荣蒋焕梧陈正士彭立全
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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