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Numerical-control coated blade treated through surface two-color modification method and treatment method of numerical-control coated blade

A technology of coated blades and processing methods, which is applied in coatings, metal material coating processes, used abrasive processing devices, etc., can solve the problem of sharp reduction in the life of coated blades, reduced wear resistance of coated blades, and deterioration Coated blade cutting performance and other issues, to achieve the effect of reducing adhesion, improving cutting performance, high temperature oxidation resistance and thermal stability

Inactive Publication Date: 2020-08-25
江西江钨硬质合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: for the general structure Al existing in the prior art of numerically controlled coated inserts 2 o 3 Coated inserts, easy to reduce functional layer Al 2 o 3 The thickness of the coating reduces the wear resistance of the coated blade and seriously deteriorates the cutting performance of the coated blade, resulting in a sharp reduction in the life of the coated blade; and the existing modification technology cannot effectively remove the pre-coating of the coated blade. TiN yellow coating to obtain modified Al 2 o 3 For defects and deficiencies such as coatings, the present invention provides a numerically controlled coating blade treated by a surface two-color modification method and a treatment method thereof

Method used

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  • Numerical-control coated blade treated through surface two-color modification method and treatment method of numerical-control coated blade
  • Numerical-control coated blade treated through surface two-color modification method and treatment method of numerical-control coated blade
  • Numerical-control coated blade treated through surface two-color modification method and treatment method of numerical-control coated blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: Coating modification treatment of numerically controlled coated inserts

[0048] The coating modification treatment method of the CNC coating blade (model TNMG160408) adopts the surface two-color modification method, and performs the treatment according to the following steps:

[0049] (1) Deposit Al on the surface of the blade substrate by conventional technology 2 o 3 +TiCN coating, get a black coated blade;

[0050] (2), with the black coated blade that step (1) obtains, pre-coat TiN yellow pre-coat by CVD technology; Control the thickness of TiN yellow pre-coat to be 200nm;

[0051] (3) The coated blade pre-coated with the TiN yellow pre-coating obtained in step (2) is loaded on the rotary fixture.

[0052] The rotary fixture includes a material rod 1 , bases at the upper and lower ends, and a spacer ring 6 .

[0053] Wherein, described material bar 1 is that two ends all have dialing tooth, and material bar one end is detachable dialing tooth 4, f...

Embodiment 2

[0068] Embodiment 2: Coating modification treatment of numerically controlled coated inserts

[0069] A coating modification treatment method for a numerically controlled coated blade (model TNMG160408), which adopts a surface two-color modification method, and performs the treatment according to the following steps:

[0070] (1) Deposit Al on the surface of the blade substrate by conventional technology 2 o 3 +TiCN coating, get a black coated blade;

[0071] (2), with the black coating blade that step (1) obtains, pre-coat TiN yellow pre-coat by CVD technology; Control the thickness of TiN yellow pre-coat to be 400nm;

[0072] Remaining processing steps are with embodiment 1.

[0073] The two-color modified numerically controlled coated blade obtained in Example 2 has a modified special structure (see microstructure figure 2 ), high microhardness, low friction, high temperature oxidation resistance, good thermal stability and high cutting performance.

Embodiment 3

[0074] Embodiment 3: Coating modification treatment of numerically controlled coated inserts

[0075] A coating modification treatment method for a numerically controlled coated blade (model TNMG160408), which adopts a surface two-color modification method, and performs the treatment according to the following steps:

[0076] (1) Deposit Al on the surface of the blade substrate by conventional technology 2 o 3 +TiCN coating, get a black coated blade;

[0077] (2), with the black coating blade that step (1) obtains, pre-coat TiN yellow pre-coat by CVD technology; Control the thickness of TiN yellow pre-coat to be 600nm;

[0078] Remaining processing steps are with embodiment 1.

[0079] The two-color modified numerically controlled coated blade obtained in Example 3 has a modified special structure (see microstructure image 3 ), high microhardness, low friction, high temperature oxidation resistance, good thermal stability and high cutting performance.

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Abstract

The invention relates to the technical field of coated blade modification treatment in metal processing, and particularly discloses a numerical-control coated blade treated through a surface two-colormodification method and a treatment method of the numerical-control coated blade. The numerical-control coated blade comprises a numerical-control blade base body and modified coatings on the blade base body, the modified coatings comprise inner Al2O3+TiCN black coatings and outer TiN yellow precoatings, and the inner Al2O3+TiCN black coatings and the outer TiN yellow precoatings form the two-color modified coating through surface two-color modification treatment; and as for surface two-color modification treatment, through combination of a rotary work fixture and a rotating wet-sand-blastingmodification process, the TiN yellow coatings pre-coating the upper end face, the lower end face and the periphery of the coated blade are cleared in a modified mode to expose the modified black coatings, only the TiN yellow coating in a blade hole is retained, and thus the two-color modified numerical-control coated blade with the interior of the hole being yellow and the upper end face, the lower end face and the periphery being black is formed. According to the numerical-control coated blade subjected to two-color modification treatment, the cutting property of the coated blade is remarkably improved, and the cutting life of the coated blade is effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of coating blade modification treatment in metal processing, and in particular relates to a numerically controlled coating blade processed by a surface two-color modification method and a processing method thereof. Background technique [0002] CNC coated inserts have the characteristics of high hardness, good wear resistance and strong heat resistance, and are widely used in the field of cutting processing. Facing the demand for high-efficiency and precise machining of difficult-to-machine materials and components, CNC coated inserts still need to further improve cutting performance through post-coating treatments. Due to the difference in thermal expansion between the coating and the blade substrate, thermal internal stress is usually generated in the coating, and the internal stress of the chemically coated blade increases with the increase of the coating thickness, and the increase of internal stress wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/56C23C16/34B24C1/02B24C1/08B24C3/02B24C9/00B24C11/00
CPCC23C16/56C23C16/34B24C1/02B24C1/08B24C3/02B24C9/00B24C11/00
Inventor 朱瑞源姜奉春
Owner 江西江钨硬质合金有限公司