Preparation method of jet polishing micro-texture coating cutter and cutting method of coating cutter matched with minimal quantity lubrication

A technology of micro-lubrication and cutting methods, which is applied in laser welding equipment, manufacturing tools, welding equipment, etc., can solve the problems of uneven force on the cutting edge, premature failure, poor processing efficiency of micro-textured tools, etc., and achieve improved Permeability, effect of reducing volume requirements

Active Publication Date: 2019-05-31
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the process of preparing micro-textured tools, the use of grinding tools or laser equipment to directly process the micro-texture on the cutting edge has a great impact on the strength of the cutting edge. With a certain strength, it is easy to fail prematurely during the processing process. At the same time, the cutting edge part has not been well passivated, and the flatness of the cutting edge after laser micro-texture processing is affected, and it is very easy to cause tremors during the cutting process. Uneven stress on the cutting edge
Therefore, in the actual production process, there will be problems with poor processing efficiency of micro-textured tools
In processing applications, most micro-textured tools are used for dry cutting and cutting fluid processing. Although a certain improvement in processing performance has been obtained, the maximum processing effect of micro-textured tools cannot be exerted.

Method used

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  • Preparation method of jet polishing micro-texture coating cutter and cutting method of coating cutter matched with minimal quantity lubrication
  • Preparation method of jet polishing micro-texture coating cutter and cutting method of coating cutter matched with minimal quantity lubrication
  • Preparation method of jet polishing micro-texture coating cutter and cutting method of coating cutter matched with minimal quantity lubrication

Examples

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Effect test

Embodiment 1

[0052] A method for preparing a jet polishing micro-texture coating tool, comprising the following steps:

[0053]S1: Micro-abrasive jet polishing on the surface of the coated tool: when the surface temperature of the coated tool is below 40°C, check with a 20X microscope. The film layer on the coated surface should be complete, and there should be no coating peeling off on the coated part , there should be no color difference, the boundary line between coating and uncoating should be clear and distinct, and the next step can only be carried out after meeting the above standards. Before jet polishing, the coated tool is fixed on a special fixture, and the abrasive is Al2O3 Particles, the abrasive diameter is 10um, the abrasive concentration is 75g / L, when performing jet polishing, the spray angle of the nozzle is set to 30°, the spray pressure is 0.3MPa, the distance from the nozzle to the workpiece is 20mm, and the feed speed is 1mm / s. The diameter is 0.2mm, open the jet syst...

Embodiment 2

[0079] A method for preparing a jet polishing micro-texture coating tool, comprising the following steps:

[0080] S1: Micro-abrasive jet polishing on the surface of the coated tool: when the surface temperature of the coated tool is below 40°C, check with a 20X microscope. The film layer on the coated surface should be complete, and there should be no coating peeling off on the coated part , there should be no color difference, the boundary line between coating and uncoating should be clear and distinct, and the next step can only be carried out after meeting the above standards. Before jet polishing, the coated tool is fixed on the special fixture, and the abrasive is Al2O3 Particles, the abrasive diameter is 20um, the abrasive concentration is 100g / L, when performing jet polishing, set the spray angle of the nozzle to 60°, the spray pressure to 0.4MPa, the distance from the nozzle to the workpiece to 25mm, and the feed speed to 2mm / s. The diameter is 0.3mm, open the jet sys...

Embodiment 3

[0106] A method for preparing a jet polishing micro-texture coating tool, comprising the following steps:

[0107] S1: Micro-abrasive jet polishing on the surface of the coated tool: when the surface temperature of the coated tool is below 40°C, check with a 20X microscope. The film layer on the coated surface should be complete, and there should be no coating peeling off on the coated part , there should be no color difference, the boundary line between coating and uncoating should be clear and distinct, and the next step can only be carried out after meeting the above standards. Before jet polishing, the coated tool is fixed on a special fixture, and the abrasive is SiC Particles, the abrasive diameter is 20um, the abrasive concentration is 80g / L, when performing jet polishing, the spray angle of the nozzle is set to 45°, the spray pressure is 0.35MPa, the distance from the nozzle to the workpiece is 40mm, and the feed speed is 3mm / s. The diameter is 0.4mm, the jet system is...

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Abstract

The invention discloses a preparation method of a jet polishing micro-texture coating cutter, and relates to the field of cutter coatings. The preparation method comprises the following steps of micro-abrasive jet polishing the surface of the coating cutter; after jet polishing is completed, cleaning the coating cutter; and using laser to process micro-texture on the surface of the coating cutter.The invention further discloses a cutting method of the coating cutter matched with minimal quantity lubrication. The cutting method comprises the following steps of fixing a to-be-processed workpiece on a machine tool clamp, and fixing the coating cutter on a cutter handle or a cutter bar; setting the water quantity, the oil amount, and the pressure intensity and flow of compressed air of minimal quantity lubrication equipment; aligning a nozzle with a cutting part of the cutter, setting the distance between the nozzle and the cutting part of the cutter, opening the minimal quantity lubrication equipment, and spraying lubricant stably from the outlet; and setting the cutting speed, the feeding speed, the cutting depth and the cutting width, starting a machine tool to carry out cutting machining. According to the method, on the premise that the cutting edge of the cutter and the quality of the coating are improved, the friction coefficient of chips and a front cutter surface and the friction coefficient of a machined surface and a rear cutter surface are further reduced in the cutting process.

Description

technical field [0001] The invention relates to the field of tool coatings, in particular to a preparation method of a jet polishing micro-texture coating tool and a cutting method in which the coated tool cooperates with minimal lubrication. Background technique [0002] In recent years, with the research and development of bionic non-smooth surface technology, the application of bionic anti-friction surface to the metal cutting process makes new tools have new characteristics that traditional tools do not have, and has become a new tool development field. an important direction. This kind of tool is called micro-textured tool. Micro-textured tools refer to machining a micro-nano structure array with a certain size and shape on a specific position on the tool surface (rake face or flank face) to improve the friction and lubrication of the tool-chip contact interface during the cutting process. state. Studies have shown that micro-textured tools can reduce friction and re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P9/00B23K26/352B23Q11/10B24C1/08B24C11/00
Inventor 王成勇赖志伟郑李娟胡小月王荣娟
Owner GUANGDONG UNIV OF TECH
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