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A kind of process method of carbon nanotube jet grinding nickel base alloy

A carbon nanotube, nickel-based alloy technology, applied in metal processing equipment, abrasive feeding devices, abrasives, etc., can solve the problems of poor fluidity of solid materials, difficult grinding process, difficult to take away heat, etc. Low, high processing quality, processing quality and the effect of improving economic efficiency

Inactive Publication Date: 2011-12-07
QINGDAO TECHNOLOGICAL UNIVERSITY
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Problems solved by technology

However, due to the poor fluidity of solid matter, it is difficult to participate in the grinding process and it is difficult to take away heat, so it has not been paid attention to.

Method used

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  • A kind of process method of carbon nanotube jet grinding nickel base alloy

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Embodiment Construction

[0017] In order to prove the effectiveness of the carbon nanotube jet grinding process for nickel-based alloys, we did a comparative experiment between the carbon nanotube jet grinding nickel-based alloy process and pouring grinding, dry grinding, and minimal lubrication grinding. The following is only Provide a typical experimental situation:

[0018] Experimental conditions: SCHLEIFRING K-P36 precision CNC surface grinder, CBN grinding wheel, grinding wheel parameters: diameter 300mm, particle size: 240#, grinding wheel linear speed 65m / s, feed rate 0.5m / min; cutting depth 1.5 mm. The grade of nickel-based alloy material used in the test is: GH4145, and its hardness is HB330-400. Three-way piezoelectric grinding force measuring instrument (YDM-Ⅲ99), surface topography instrument (Talysurf), and infrared thermal imager (Thermovision A20M) were used to measure grinding force, surface microstructure and grinding zone temperature, respectively.

[0019] Experimental design: ① ...

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Abstract

The invention belongs to a mechanical processing method, that is, a process method of carbon nanotube jet grinding nickel base alloy. Carbon nanotube nanoparticles and grinding media are mixed to form nanofluid, and the nanofluid is sprayed into the grinding area in the form of a jet. The cooling performance of the cutting medium makes up for the lack of cooling capacity of the minimum quantity lubrication; at the same time, because the carbon nanotubes also have extremely high toughness, the tube wall has a hexagonal structure of graphite layer, so it has excellent lubrication performance and maintains the minimum quantity lubrication. properties and advantages, and increase the lubrication area of ​​the grinding fluid, effectively reducing the friction between the grinding wheel and the workpiece, between the grinding wheel and chips, prolonging the life of the grinding wheel, and obtaining positive effects of high processing quality, low cost, and no pollution. It has high application value and market prospect.

Description

technical field [0001] The invention belongs to a mechanical processing method, that is, a process method of carbon nanotube jet grinding nickel base alloy. Background technique [0002] Nickel-based alloy advanced materials are widely used in important parts of aero-engines such as compressor fan blades and casings due to their small specific gravity, high specific strength, good heat resistance and corrosion resistance. The processing quality of these key parts has a great impact on the engine The overall performance and efficiency impact is huge. Nickel-based alloys are typical difficult-to-machine materials. This type of workpiece material has the characteristics of large high-temperature strength, low thermal conductivity, severe work hardening, and easy chemical reactions with tool materials. This makes its grinding processability poor. In grinding process, the grinding temperature is high and the tool wears quickly, so it is more and more important to study the grind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24C1/00B24C7/00
Inventor 李长河侯亚丽丁玉成
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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