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Micro-nano composite texture self-lubricating ceramic tool and manufacture method thereof

A ceramic tool, micro-nano composite technology, applied in the direction of tools for lathes, turning equipment, manufacturing tools, etc., can solve the problems of the deterioration of the machined surface quality, the increase of cutting temperature, and the decrease of tool life.

Inactive Publication Date: 2013-04-10
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, dry cutting also has disadvantages: due to the lack of lubrication and cooling of cutting fluid, the friction between the tool and the workpiece is intensified, the cutting temperature rises, the tool wears seriously, the tool life decreases, and the quality of the machined surface deteriorates.
However, during high-speed dry cutting, the friction between the cutting chips on the rake face is extremely severe, generating a lot of heat, resulting in a decrease in tool life

Method used

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  • Micro-nano composite texture self-lubricating ceramic tool and manufacture method thereof
  • Micro-nano composite texture self-lubricating ceramic tool and manufacture method thereof

Examples

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example 1

[0016] Example 1: A self-lubricating ceramic cutter with micro-nano composite texture and its preparation method, the cutter material is Al 2 o 3 Based ceramics, which are characterized in that micron-scale texture 3 is processed on the rake face 1 of the tool, nano-scale texture 4 is processed on the negative chamfer 2 of the tool, and micron-scale texture 3 and nano-scale texture 4 are processed respectively. filled with solid lubricants. Its preparation process steps are as follows:

[0017] (1) Grinding and polishing the rake face 1 and negative chamfer 2 of the tool, and cleaning them in acetone and alcohol solutions for 20 minutes respectively, and performing degreasing treatment;

[0018] (2) Use a laser marking machine to process a micron-scale texture 3 on the rake face of the ceramic tool, with a texture groove width of 50 μm, a depth of 50 μm, and a spacing of 200 μm;

[0019] (3) Using a femtosecond laser to process a nanoscale texture 4 on the negative chamfer ...

example 2

[0021] Example 2: A micro-nano composite texture self-lubricating ceramic cutter and its preparation method, the cutter material is Si 3 N 4 The base ceramic is characterized in that a micron-scale texture is processed on the rake face of the tool, a nano-scale texture is processed on the negative chamfer of the tool, and solid lubricants are filled in the micro-scale texture and the nano-scale texture respectively. Its preparation process steps are as follows:

[0022] (5) Grinding and polishing the rake face and negative chamfer of the tool, and cleaning them in acetone and alcohol solutions for 20 minutes respectively, and carrying out degreasing treatment;

[0023] (6) Use a laser marking machine to process a micron-scale texture on the rake face of the ceramic tool, with a texture groove width of 50 μm, a depth of 100 μm, and a spacing of 250 μm;

[0024] (7) Using a femtosecond laser to process a nanoscale texture on the negative chamfer of the ceramic tool, the textur...

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Abstract

The invention belongs to the technical field of manufacture of mechanical cutting tools, and in particular relates to a micro-nano composite texture self-lubricating ceramic tool and a manufacture method thereof. According to the micro-nano composite texture self-lubricating ceramic tool, a micron level texture is processed on a front cutter surface by adopting a laser processing technology, a nano level texture is processed on a negative chamfered edge, a solid lubricating agent is filled in the micron level texture and the nano level texture respectively, during chip dry cutting, the dual functions of the micro-nano composite texture and the solid lubricating agent can realize that the friction is reduced and the cutting force and the cutting temperature are reduced, and thus the purposes of preventing adhesion, reducing friction and abrasion and prolonging the service life of the tool can be achieved. The micro-nano composite texture self-lubricating ceramic tool can be widely applied to high-speed dry cutting and cutting of difficult-to-machine materials, can overcome the environment pollution caused by cutting solution, realizes clean production, and is reduced in cost.

Description

1. Technical field [0001] The invention belongs to the technical field of mechanical cutting tool manufacturing, and in particular relates to a self-lubricating ceramic tool with a micro-nano composite texture and a preparation method thereof. 2. Background technology [0002] Due to the high cost of cutting fluid and environmental pollution, dry cutting has become one of the development trends of metal cutting in the future. However, there are also shortcomings in dry cutting: due to the lack of lubrication and cooling of cutting fluid, the friction between the tool and the workpiece is intensified, the cutting temperature rises, the wear of the tool is serious, the life of the tool is reduced, and the quality of the machined surface is deteriorated. Ceramic tool materials have excellent characteristics such as high hardness, good wear resistance, heat resistance and good chemical stability, and have become one of the main tools for dry cutting and difficult-to-machine mate...

Claims

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Application Information

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IPC IPC(8): B23B27/00B23B27/14
Inventor 邢佑强邓建新吴泽连云崧冯秀亭
Owner SHANDONG UNIV
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