CrAlYO coated cutter and preparation method thereof

A coating and cutting tool technology, applied in the field of CrAlYO coated cutting tools and its preparation, can solve problems such as cracked surface, coating peeling, pores, etc., and achieve the effects of low production cost, improved thermal stability, and simple process
CN113667933APending Publication Date: 2021-11-19ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD
Publication Date
2021-11-19

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Abstract

The invention discloses a CrAlYO coated cutter and a preparation method thereof. The coated cutter comprises a cutter substrate and a (Cr1-a-bAlaYb)2O3 layer which is deposited on the cutter substrate and is of a corundum structure. The preparation method comprises the following steps: pretreating the cutter substrate; then, selectively depositing a Ti1-xAlxN transition layer of a face-centered cubic structure; and depositing a CrAlYO coating. The coated cutter has high hardness, high abrasion resistance and excellent high-temperature oxidation-resistant property; furthermore, the bonding strength between the coating and the substrate is high; and the preparation method is simple in process and low in production cost.
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Description

technical field

[0001] The invention belongs to the technical field of cutting tool preparation, and relates to a coated cutting tool and a preparation method thereof, in particular to a CrAlYO coated tool and a preparation method thereof. Background technique

[0002] The coated tool combines the advantages of high wear resistance and low friction coefficient of the surface coating with the high toughness and high strength of the matrix, which can greatly improve the cutting performance of the tool and improve the machining efficiency.

[0003] al 2 o 3 The coating has good high temperature chemical stability and excellent oxidation resistance and diffusion wear resistance. Coating on the surface of cemented carbide tools can effectively prevent the high temperature oxide layer from diffusing to the tool substrate or other coatings. One of the most ideal coating materials for cutting performance and service life in dry cutting conditions. al 2 o 3 Coating preparation t...

Claims

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