Multilayer Coated Cutting Tools

A technology for cutting tools and multi-layer coatings, applied in coatings, tools for lathes, metal material coating processes, etc., can solve problems affecting cutting applications, coating oxidation resistance temperature reduction, etc., to improve the combination and Effects of stress conditions, overcoming poor friction properties, excellent friction reduction and lubricating effect

Active Publication Date: 2016-02-17
ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strong affinity between V element and O element reduces the oxidation resistance temperature of TiAlVN and TiAlN / VN coatings, which ultimately affects their cutting applications.

Method used

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  • Multilayer Coated Cutting Tools
  • Multilayer Coated Cutting Tools

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] a kind of like figure 1 The shown multi-layer coating cutting tool of the present invention is made up of tool substrate 1, transition layer 7 and composite coating 8 successively from the inside to the outside, and the total thickness of the coating (i.e. the sum of transition layer 7 and composite coating 8 thicknesses, The same below) is 3.72 μm.

[0027] The composite coating 8 includes TiAlSiN layers 5 and TiAlVN layers 6 that are periodically and alternately deposited from the inside to the outside, and the innermost TiAlSiN layer 5 is disposed on the transition layer 7; TiAlSiN is composed of Ti 0.35 al 0.6 Si 0.05 N, TiAlVN is composed into Ti by atomic ratio 0.45 al 0.50 V 0.05 N, Ti 0.35 al 0.6 Si 0.05 The monolayer thickness of N layer is 8nm, Ti 0.45 al 0.50 V 0.05 The single layer thickness of the N layer is 10nm; the innermost layer Ti 0.35 al 0.6 Si 0.05 N layer and second inner layer Ti 0.45 al 0.50 V 0.05 The N layer is used as the firs...

Embodiment 2

[0053] a kind of like figure 2 The shown multi-layer coating cutting tool of the present invention is composed of a tool base 1, a transition layer 7 and a composite coating 8 in sequence from the inside to the outside, and the total thickness of the coating is 3.96 μm.

[0054] The composite coating 8 includes TiAlVN layers 6 and TiAlSiN layers 5 that are periodically and alternately deposited from the inside to the outside, and TiAlVN is composed of Ti 0.35 al 0.55 V 0.1 N, TiAlSiN is composed of Ti by atomic ratio 0.49 al 0.5 Si 0.01 N, Ti 0.35 al 0.55 V 0.1 The monolayer thickness of N layer is 8nm, Ti 0.49 al 0.5 Si 0.01 The single layer thickness of the N layer is 5nm; the innermost layer Ti 0.35 al 0.55 V 0.1 N layer and second inner layer Ti 0.49 al 0.5 Si 0.01 The N layer is used as the first cycle, and the composite coating 8 includes 300 cycles from the inside to the outside, and the thickness of the composite coating 8 is 3.9 μm.

[0055] The tran...

Embodiment 3

[0070] a kind of like figure 2 The shown multi-layer coating cutting tool of the present invention is composed of a tool base 1, a transition layer 7 and a composite coating 8 in sequence from the inside to the outside, and the total thickness of the coating is 3.08 μm.

[0071] The composite coating 8 includes TiAlVN layers 6 and TiAlSiN layers 5 that are periodically and alternately deposited from the inside to the outside, and TiAlVN is composed of Ti 0.39 al 0.6 V 0.01 N, TiAlSiN is composed of Ti by atomic ratio 0.4 al 0.5 Si 0.1 N, Ti 0.39 al 0.6 V 0.01 The thickness of N layer is 8nm, Ti 0.4 al 0.5 Si 0.1 The thickness of the N layer is 12nm; the innermost layer Ti 0.39 al 0.6 V 0.01 N layer and second inner layer Ti 0.4 al 0.5 Si 0.1 The N layer is used as the first period, so the composite coating 8 includes 150 periods from the inside to the outside, and the thickness of the composite coating 8 is 3 μm.

[0072] The transition layer 7 includes a Ti ...

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Abstract

The invention discloses a multi-layer coating cutting tool, the multi-layer coating cutting tool comprises a tool base and a composite coating deposited on the tool base, the composite coating includes periodically alternately deposited TiAlVN layers and TiAlSiN layer. The multi-layer coating cutting tool of the invention has the advantages of low friction coefficient, high wear resistance, high impact resistance, good oxidation resistance and good combination of coated coating and substrate.

Description

technical field [0001] The invention relates to a cutting tool, in particular to a multi-layer structure coating cutting tool with self-lubricating effect. Background technique [0002] Depositing a layer of high wear-resistant and oxidation-resistant coating on the surface of cutting tools can greatly improve the service life of the tool and meet the needs of high-speed, high-efficiency and other harsh processing conditions. At present, TiAlN coating and its multi-layer coating are widely used coating materials because of their good hardness, oxidation resistance and comprehensive performance. [0003] In recent years, some new studies have shown that adding elements such as Si, Zr, Cr, Nb, Ta, W, B to the TiAlN coating system can further improve the hardness or oxidation resistance of the coating. Amorphous Si formed by adding Si element into Ti-Al-N coating 3 N 4 The nanocomposite structure of phase-wrapped TiAlN nanograins not only improves the oxidation resistance an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B27/00B32B15/04B32B9/04
CPCB23B27/14B32B9/04B32B15/04C23C14/0641C23C14/16
Inventor 李佳陈利吴明晶裴斐
Owner ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
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