Compound cutting tool coating based on titanium diboride and preparation method thereof

A composite tool, titanium diboride technology, applied in the direction of tool, coating, metal material coating process for lathes, etc., to achieve the effects of good toughness, high electrical conductivity, thermal conductivity and electrical conductivity

Inactive Publication Date: 2014-06-11
北工(常熟)工业技术有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently, TiB 2 The report of the base coating is mainly based on a single-layer structure, and metals are added to improve its toughness, and TiB with met

Method used

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  • Compound cutting tool coating based on titanium diboride and preparation method thereof

Examples

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Example Embodiment

[0023] Example 1

[0024] This example provides a composite tool coating based on titanium diboride, which is used to adhere to the substrate 1, and mainly includes TiB 2 -Ni layer 3 and DLC-Ni layer 4, there is a transition layer 2 between the substrate 1 and the composite tool coating. Among them, TiB 2 -Ni layer 3 refers to TiB 2 And Ni composite layer, DLC-Ni layer 4 is a diamond-like carbon and Ni composite layer, which are alternately stacked and have a thickness of nanometer size. As TiB 2 -Ni layer and DLC-Ni layer are alternately stacked, using DLC's high hardness and high conductivity, so that the composite tool coating has the advantages of good toughness, thermal conductivity and electrical conductivity, and its hardness can reach 20GPa.

[0025] In this embodiment, TiB 2 -Ni layer 3 is first attached to the transition layer 2 (metal Ni layer), then DLC-Ni layer 4 and TiB 2 -Ni layers 3 are alternately stacked. TiB 2 -The thickness of the Ni layer 3 and the DLC-Ni laye...

Example Embodiment

[0026] Example 2

[0027] This example provides a method for preparing a titanium diboride-based composite tool coating, which specifically includes the following steps:

[0028] (A) Choose commercially available TiB with a purity of 99.9% 2 Ceramic target, commercially available metal Ni target and carbon target with purity of 99.99% are installed on a multi-target magnetron sputtering apparatus as raw materials; (100) oriented single crystal silicon substrate is selected as the substrate, followed by absolute ethanol, acetone, and anhydrous Ethanol ultrasonic cleaning the substrate for 10-20min, then drying at 80℃ for 1-2h and then installing it on the multi-target magnetron sputtering instrument;

[0029] (B) Check that the gas, electricity, and water circuits of the multi-target magnetron sputtering instrument are normal, then turn on the main power supply and start the mechanical pump. When the pressure of the deposition chamber and the sample chamber are below 10 Pa, close the...

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Abstract

The invention relates to a compound cutting tool coating based on titanium diboride and a preparation method of the compound cutting tool coating. The compound cutting tool coating comprises TiB2-Ni layers and DLC-Ni layers which are overlapped alternately, wherein the thicknesses of the TiB2-Ni layers and the DLC-Ni layers are of a nano grade; the preparation method of the compound cutting tool coating comprises the following steps in sequence: (a) respectively mounting a TiB2 source, a carbon source, a metal Ni source and a substrate on an instrument; (b) vacuuming the instrument, and heating the substrate to which the components are attached; (c) introducing an inert gas into the instrument, respectively setting the ratio and the parameters of the TiB2 source, the carbon source and the metal Ni source, and alternately opening and closing a TiB2 source and carbon source baffle, and performing physical vapor deposition for 30-300 minutes. According to the compound cutting tool coating based on titanium diboride, on one hand, the TiB2-Ni layers and the DLC-Ni layers are alternately overlapped, and by utilizing the characteristics of high hardness, high conductivity and the like of DLC, the compound cutting tool coating has the advantages of good toughness, good thermal conductivity and good electrical conductivity, and the hardness can be 20GPa; on the other hand, due to the special aluminum adhesion resistance of TiB2, a cutting tool is particularly applicable to dry cutting of aluminum alloy.

Description

technical field [0001] The invention relates to a composite tool coating, in particular to a titanium diboride-based composite tool coating and a preparation method thereof. Background technique [0002] Dry cutting technology is a major innovation to traditional production methods and a new clean manufacturing technology. The increasingly stringent environmental regulations around the world are conducive to accelerating the promotion and application of dry cutting technology; the development of various superhard and high temperature resistant tool materials and their coating technology has created extremely favorable conditions for dry cutting technology; the effective application of microlubrication devices The emergence of various standard cutting tools for small hole processing has enabled more and more applications in quasi-dry cutting aluminum alloys and various difficult-to-machine materials. It is an emerging green manufacturing technology. It is of great significa...

Claims

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Application Information

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IPC IPC(8): C23C14/06C23C14/22B23B27/14
Inventor 华云峰査钢强姚栋嘉王琳琳王晓明
Owner 北工(常熟)工业技术有限公司
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