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Zirconia Ceramic Integral Cutting Tool, Preparation Method and Application of Cutting Tool in Graphite

A technology of zirconia ceramics and integral cutting tools, which is applied in the direction of manufacturing tools, stone processing equipment, stone processing tools, etc., to achieve the effects of reliable quality, good wear resistance, and improved ion conductivity

Active Publication Date: 2020-04-07
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are few reports on high-speed cutting of graphite with ceramic tools

Method used

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  • Zirconia Ceramic Integral Cutting Tool, Preparation Method and Application of Cutting Tool in Graphite
  • Zirconia Ceramic Integral Cutting Tool, Preparation Method and Application of Cutting Tool in Graphite
  • Zirconia Ceramic Integral Cutting Tool, Preparation Method and Application of Cutting Tool in Graphite

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Embodiment Construction

[0036] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited thereto.

[0037] A zirconia ceramic monolithic tool in this embodiment, the ceramic tool matrix is ​​t-ZrO 2 base ceramics, including Zr 0.92 Y 0.08 o 1.962 ,Such as Figure 4 The X-ray diffraction (XRD) spectrum shown for zirconia (ZrO 2 ) of the ceramic cutters correspond to tetragonal zirconia ceramics. Therefore, ZrO 2 Tool material is t-ZrO 2 Base ceramics, with a certain stabilizer.

[0038] The zirconia ceramic integral tool in this embodiment is doped with metal oxide yttrium oxide as a stabilizer, which can not only stabilize zirconia but also improve its ion conductivity.

[0039] Such as Figure 1~Figure 3 As shown, the tool includes a cutting tip 1, a blade portion 2 and a clamping handle 3, the peripheral edge rake angle γ of the blade portion 2 is 8°, the perip...

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Abstract

The invention discloses a zirconium oxide ceramic whole tool, a preparing method of the tool and application of the tool in graphite, and relates to the field of ceramic tools. A matrix of the ceramictool is t-ZrO2 based ceramic including Zr0.92Y0.08O1.962. Metallic oxide is doped in the ceramic tool to serve as a stabilizer, zirconium oxide tends to stability and can improve the ionic conductivity, machining graphite of the ZrO2 ceramic tool is best, the Diamond (Si3N4) ceramic tool is secondary, and the worst is the Si3N4 ceramic tool. The ZrO2 ceramic tool machining graphite is smoothest in surface, and the surface roughness is minimum. The ceramic whole tool is good in wear resistance, and suitable for high-speed machining of graphite, the friction wear of graphite dust to the tool surface can be effectively overcome, and the tool is an ideal tool for making and cutting graphite.

Description

technical field [0001] The invention relates to the field of ceramic cutters, in particular to a zirconia ceramic integral cutter, a preparation method thereof and the application of the cutter in graphite. Background technique [0002] Ceramic cutting tools are widely used in high-speed dry machining of various hard and brittle materials due to their excellent chemical stability and good mechanical properties. Currently, zirconia (ZrO 2 ) is the most widely used in ceramic tool materials, ZrO 2 Ceramic knives have high hardness, high fracture toughness and good wear resistance. [0003] The isotropic graphite produced by the CIP (Cold Isostatic Pressing) process has excellent mechanical and physical properties such as high compressive strength and uniform physical and chemical properties, and is widely used in mold EDM Electron Discharge Machining (EDM) graphite electrodes, solar silicon cells Preparation equipment, aerospace and other fields. At present, high-speed mac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/00B24B3/00B28D1/00C04B35/48
CPCB24B1/00B24B3/00B28D1/00C04B35/48C04B2235/3225
Inventor 王成勇周玉海郑李娟
Owner GUANGDONG UNIV OF TECH