CN105619041A - Preparation method of oleophobic cutter with micro-nano composite structure surface - Google Patents
Preparation method of oleophobic cutter with micro-nano composite structure surface Download PDFInfo
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- CN105619041A CN105619041A CN201610110416.8A CN201610110416A CN105619041A CN 105619041 A CN105619041 A CN 105619041A CN 201610110416 A CN201610110416 A CN 201610110416A CN 105619041 A CN105619041 A CN 105619041A
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- cutter
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- oleophobic
- compound structure
- nano compound
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
Abstract
The invention discloses a preparation method of an oleophobic cutter with a micro-nano composite structure surface, and belongs to the technical field of manufacturing of mechanical cutting tools. A micro-nano composite structure can be machined on the surface of a cutter by using a laser processing technology, and is micron projections formed on the surface of the laser-processed cutter and nano particles on the micron projections; and a certain surface treatment is performed for the composite structure to form an oleophobic cutter surface with the micro-nano composite structure. Under the lubricating condition, because of lipophobicity of the cutter surface, cutting liquid can be supplied to a cutter-chip interface more quickly, the lubricating state of a cutting area can be improved, the friction force of the cutter-chip interface is reduced, the guarantee is provided for friction reduction and wear reduction of the cutter, the cutting temperature can be lowered, and the bonding phenomenon of the cutter surface is relieved; and the oleophobic cutter can be widely applied to cutting and high-speed cutting of difficult cutting materials (such as titanium alloys, ultrahigh-strength steel, austenitic stainless steel), so that the cutter durability and the workpiece surface quality can be greatly improved.
Description
Technical field
The preparation method that the present invention relates to a kind of oleophobic cutter with micro-nano compound structure surface, it belongs to technical field of mechanical cutting tool manufacture.
Background technology
In recent years, along with the manufacturing fast development of China's Aero-Space, the consumption that makes of titanium alloy increases year by year, therefore the processing of titanium alloy parts is become more and more important. Titanium alloy, as typical difficult-to-machine material, adds that cutter in man-hour-bits contact length is little, cutter-bits interfacial friction factor big, cutter bonding abrasion and diffusive wear is serious, cutting temperature is high. High-speed cutting processing can improve the machinability of titanium alloy to a certain extent, reduce the difficulty of titanium alloy cutting processing, but high-speed cutting processing there is also some shortcomings, it mostly is boundary lubrication condition as added cutter in man-hour-bits boundary lubrication state in high-speed cutting, now tool wear is still serious, and surface of the work crudy is poor. Therefore slow down the new technique of tool surface abrasion in the urgent need to research, drop mill for cutter antifriction and provide safeguard, thus improving tool life.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, it is provided that the preparation method of a kind of oleophobic cutter with micro-nano compound structure surface.
The preparation method that the present invention adopts the following technical scheme that a kind of oleophobic cutter with micro-nano compound structure surface, it comprises the steps:
Step one: prepare micro-nano compound structure at tool surface by laser processing technology;
Step 2: by sufacing, micro-nano compound structure tool surface is carried out surface modification, form the oleophobic tool surface with micro-nano compound structure.
Further, the first preparation method of described step one specifically includes as follows:
(1) clean tool surface, cutter is individually placed to more than ultrasonic cleaning 15min in acetone and ethanol;
(2) adopting laser processing technology to process micro-nano compound structure at cutter rake face, wherein laser power is 5��10W, and frequency is 20��200kHz, and scanning speed is 1��2000mm/s, and scanning times is 5��400 times, and defocusing amount is-1.2��1.2mm;
(3) polishing tool surface, abrasive paper for metallograph order number used is 600��1200 orders, and cutter is individually placed to more than ultrasonic cleaning 20min afterwards in acetone and ethanol.
Further, described step 2 specifically includes as follows:
(1) under room temperature environment, tool surface being carried out fluorination treatment, the fluoride of selection is the mixed liquor formulated by silicon fluoride class oleophobic agent and organic solvent, and wherein oleophobic agent mass fraction is 0.1%��1.5%;
(2) cutter being put into reaction more than 2h in this mixed liquor, takes out afterwards and dry up with high pure nitrogen, then being put into by cutter in baking oven, drying time is at more than 1h, and temperature is 90��250 �� of C, to guarantee that the Organic substance that surface has volatilizees completely.
Further, the tool surface micro-protuberance height with micro-nano compound structure is 1��100 ��m, and diameter is 1��15 ��m, and spacing is 1��30 ��m, and on micro-protuberance, the diameter of nano-particle is below 300nm.
There is advantages that the tool surface prepared by preparation method of the present invention has micron order projection and nano level granule, this micro-nano compound structure changes the geometrical morphology of tool surface and increases tool surface roughness, and after certain surface treatment, tool surface has oleophobic property. Under lubricating condition, owing to the oleophobic property of cutter will make cutting fluid be gathered in cutter-bits interface quickly, be conducive to the formation of cutting zone lubricating film, thus can improve the lubricating status of cutting zone, cutting zone lubricating status is made to be changed into Liquid Lubrication Condition by boundary lubrication condition, thus reducing the frictional force at cutter-bits interface, dropping mill for cutter antifriction and providing safeguard, alleviate chip bonding phenomenon. This oleophobic cutter can be widely applied to machining and the high-speed cutting processing of hard-cutting material (such as titanium alloy, unimach, austenitic stainless steel etc.), tool life and workpiece surface quality can be greatly enhanced, also can improve production efficiency simultaneously and reduce production cost.
Accompanying drawing explanation
Fig. 1 is the oleophobic cutter preparation process schematic diagram that the present invention has micro-nano compound structure surface;
Fig. 2 is micro-nano compound structure partial schematic diagram of the present invention.
Detailed description of the invention
The preparation method that the present invention provides a kind of oleophobic cutter with micro-nano compound structure surface, for making the purpose of the present invention, clearly, clearly, and the present invention is described in more detail with reference to accompanying drawing examples for technical scheme and effect. Should be appreciated that described herein being embodied as, only in order to explain the present invention, is not intended to limit the present invention.
By the examples below, in conjunction with accompanying drawing, the concrete technical scheme of the present invention is further described.
Please respectively referring to shown in Fig. 1 and Fig. 2, Fig. 1 is the oleophobic cutter preparation process schematic diagram that the present invention has micro-nano compound structure surface, adopts Laser Processing and process for treating surface to process the oleophobic cutter with micro-nano compound structure surface. Under lubricating condition, due to the oleophobic property of tool surface, cutting fluid is gathered in cutter-bits interface quickly, is conducive to the formation of cutting zone lubricating film, thus can improve the lubricating status of cutting zone. Fig. 2 is micro-nano compound structure partial schematic diagram of the present invention, and tool surface has micro-protuberance, and it has nano-particle, thus constitutes tool surface micro-nano compound structure. The present invention has the oleophobic cutter preparation method on micro-nano compound structure surface, comprises the steps:
Step one: prepare micro-nano compound structure at tool surface by laser processing technology;
Step 2: by sufacing, micro-nano compound structure tool surface is carried out surface modification, form the oleophobic tool surface with micro-nano compound structure. Under lubricating condition, owing to the oleophobic property of cutter will make more cutting fluid be gathered in cutter-bits interface, be conducive to the formation of cutting zone lubricating film, thus can improve the lubricating status of cutting zone, cutting zone lubricating status is made to be changed into Liquid Lubrication Condition by boundary lubrication condition, thus reducing the frictional force at cutter-bits interface, dropping mill for cutter antifriction and providing safeguard, alleviate chip bonding phenomenon.
For reaching above-mentioned purpose, the present invention is the oleophobic cutter obtaining in the following manner having micro-nano compound structure surface, first pass through laser processing technology and prepare micro-nano compound structure at tool surface, then pass through the sufacing tool surface to having micro-nano compound structure and carry out surface modification, form the oleophobic tool surface with micro-nano compound structure.
Wherein step one is specific as follows:
(1) clean tool surface, cutter is individually placed to more than ultrasonic cleaning 15min in acetone and ethanol.
(2) adopting laser processing technology to process micro-nano compound structure at cutter rake face, wherein laser power is 5��10W, and frequency is 20��200kHz, and scanning speed is 1��2000mm/s, and scanning times is 5��400 times, and defocusing amount is-1.2��1.2mm.
(3) polishing tool surface, abrasive paper for metallograph order number used is 600��1200 orders, and cutter is individually placed to more than ultrasonic cleaning 20min afterwards in acetone and ethanol.
Wherein step 2 is specific as follows:
(1) under room temperature environment, tool surface being carried out fluorination treatment, the fluoride of selection is the mixed liquor formulated by silicon fluoride class oleophobic agent and organic solvent, and wherein oleophobic agent mass fraction is 0.1%��1.5%.
(2) cutter being put into reaction more than 2h in this mixed liquor, takes out afterwards and dry up with high pure nitrogen, then being put into by cutter in baking oven, drying time is at more than 1h, and temperature is 90��250 �� of C, to guarantee that the Organic substance that surface has volatilizees completely.
Below by the preparation method that a specific embodiment illustrates a kind of oleophobic cutter with micro-nano compound structure surface of the present invention.
Cutter for same is carbide alloy YG 8 cutter, step one: adopt laser processing technology to prepare micro-nano compound structure at tool surface; Step 2: by sufacing, the tool surface with micro-nano compound structure is carried out surface modification, form the oleophobic tool surface with micro-nano compound structure. Wherein step one is specific as follows:
(1) clean tool surface, cutter is individually placed in acetone and ethanol ultrasonic cleaning 15min.
(2) processing micro-nano compound structure with YLP-F20 optical fiber laser at cutter rake face, wherein laser power is 5W or 10W, and frequency is 60kHz, the highest less than 200kHz, scanning speed is 100mm/s, the fastest less than 2000mm/s, scanning times is 50 times, and defocusing amount is-0.4mm.
(3) polishing tool surface, abrasive paper for metallograph order number used is 800 orders, and cutter is individually placed to ultrasonic cleaning 20min afterwards in acetone and ethanol.
Wherein step 2 is specific as follows:
(1) under room temperature environment, tool surface being carried out fluorination treatment, the fluoride oleophobic agent of selection is that PFPE(thinks Kang Huaxue, F-1091), solvent is perfluoro butyl cyclic ethers (thinking Kang Huaxue, F-8603), and being configured to this oleophobic agent mass fraction is the mixed liquor of 1%.
(2) cutter is put into reaction 24h in this mixed liquor, take out afterwards and dry up with high pure nitrogen, again cutter is put in baking oven, drying time is 3h, temperature is 200 �� of C, this temperature according to practical situation adjustment, can be typically in 90��250 �� of C, to guarantee that the oleophobic agent that surface has volatilizees completely.
The above is only the preferred embodiment of the present invention, it is noted that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be regarded as protection scope of the present invention.
Claims (5)
1. the preparation method of an oleophobic cutter with micro-nano compound structure surface, it is characterised in that comprise the steps:
Step one: prepare micro-nano compound structure at tool surface by laser processing technology;
Step 2: by sufacing, micro-nano compound structure tool surface is carried out surface modification, form the oleophobic tool surface with micro-nano compound structure.
2. the preparation method as claimed in claim 1 with the oleophobic cutter on micro-nano compound structure surface, it is characterised in that:
Described step one specifically includes as follows:
Step 1.1, cleans tool surface, cutter is individually placed to more than ultrasonic cleaning 15min in acetone and ethanol;
Step 1.2, adopts laser processing technology to process micro-nano compound structure at cutter rake face, and wherein laser power is 5��10W, and frequency is 20��200kHz, and scanning speed is 1��2000mm/s, and scanning times is 5��400 times, and defocusing amount is-1.2��1.2mm;
Step 1.3, polishing tool surface, abrasive paper for metallograph order number used is 600��1200 orders, and cutter is individually placed to more than ultrasonic cleaning 20min afterwards in acetone and ethanol.
3. the preparation method as claimed in claim 2 with the oleophobic cutter on micro-nano compound structure surface, it is characterised in that:
Described step 2 specifically includes as follows:
Step 2.1, carries out fluorination treatment to tool surface under room temperature environment, and the fluoride of selection is the mixed liquor formulated by silicon fluoride class oleophobic agent and organic solvent, and wherein oleophobic agent mass fraction is 0.1%��1.5%;
Step 2.2, puts into cutter reaction more than 2h in this mixed liquor, takes out afterwards and dry up with high pure nitrogen, then being put into by cutter in baking oven, and drying time is at more than 1h, and temperature is 90��250 �� of C, to guarantee that the Organic substance that surface has volatilizees completely.
4. the preparation method as claimed in claim 2 with the oleophobic cutter on micro-nano compound structure surface, it is characterised in that: the micro-nano compound structure of described tool surface is the nano-particle in tool surface is formed after Laser Processing micron order projection and micron projection.
5. the preparation method as claimed in claim 4 with the oleophobic cutter on micro-nano compound structure surface, it is characterized in that: tool surface micron order rising height is 1��100 ��m, diameter is 1��15 ��m, and spacing is 1��30 ��m, and in micron order projection, the diameter of nano-particle is below 300nm.
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| CN201610110416.8A CN105619041B (en) | 2016-02-29 | 2016-02-29 | A kind of preparation method of the oleophobic cutter with micro-nano compound structure surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111979557A (en) * | 2020-08-05 | 2020-11-24 | 中国人民解放军陆军装甲兵学院 | Method for cleaning stainless steel surface by using pulse laser to form micro-nano structure layer |
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| CN105619041B (en) | 2018-02-16 |
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