CN117798414A - Bionic shark skin micro-texture cutter and preparation method thereof - Google Patents
Bionic shark skin micro-texture cutter and preparation method thereof Download PDFInfo
- Publication number
- CN117798414A CN117798414A CN202410066588.4A CN202410066588A CN117798414A CN 117798414 A CN117798414 A CN 117798414A CN 202410066588 A CN202410066588 A CN 202410066588A CN 117798414 A CN117798414 A CN 117798414A
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- Prior art keywords
- cutter
- micro
- texture
- shark skin
- textures
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- 241000251730 Chondrichthyes Species 0.000 title claims abstract description 40
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims description 10
- 238000005520 cutting process Methods 0.000 claims abstract description 31
- 229940021414 skin shield Drugs 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 13
- 238000010330 laser marking Methods 0.000 claims description 9
- 238000013461 design Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000010147 laser engraving Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000003801 milling Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910000601 superalloy Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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- Surgical Instruments (AREA)
Abstract
The invention discloses a bionic shark skin micro-texture cutter, which comprises a cutter blade, a front cutter surface, a rear cutter surface, an auxiliary cutter surface and a cutting edge, wherein the front angle of the cutter blade is 10 degrees, the rear angle of the cutter blade is 11 degrees, a plurality of micro-textures are arranged on the front cutter surface, the micro-textures are arranged in a longitudinal and transverse array and are distributed in a rectangular shape as a whole, and the micro-textures are in a shark skin shield scale structure so as to solve the problems of serious cutter abrasion and short service life in the existing metal cutting process.
Description
Technical Field
The invention relates to the technical field of cutter processing, in particular to a bionic shark skin micro-texture cutter and a preparation method thereof.
Background
With the rapid development of the manufacturing industry in China, the position of metal material cutting processing is more and more important, because the efficiency of the cutting processing directly influences the efficiency and development of the whole manufacturing industry. Along with the application of difficult-to-machine materials in aerospace and extreme service condition equipment, the demands on cutting tools are increasing due to the precise and high quality of cutting machining of metal materials and the green-keeping of manufacturing processes. When using conventional cutting tools, severe tool wear results in a substantial reduction in service life, and the use of cutting fluids in large quantities is an important factor affecting green machining development. Therefore, how to reduce the tool wear in the metal cutting process, prolong the service life of the tool, and realize high-quality green processing is a problem to be solved in the field.
Organisms in nature have produced excellent special structures and morphologies in development and evolution. The excellent structure and form are integrated into engineering design and research and development processes based on the bionics theory. The special shield scale structure on the shark surface in nature has the capabilities of antifriction and external abrasion resistance, and the bionic micro-texture cutter is designed. The bionic micro-texture cutter can prolong the service life by inhibiting the abrasion of the cutter, and is mainly because the micro-texture reduces the contact area of the cutter and scraps, and the micro-texture has a storage effect and better wettability.
Disclosure of Invention
The invention aims to provide a bionic shark skin micro-texture cutter and a preparation method thereof, which are used for solving the problems of serious cutter abrasion and short service life in the existing metal cutting process.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a little texture cutter of bionical shark skin, includes the cutter, the cutter includes the milling cutter piece of preceding toolface, vice toolface and cutting edge, the cutter rake angle is 10, the cutter relief angle is 11, processing is provided with a plurality of little textures on the preceding toolface, a plurality of little textures are vertically and horizontally array arrangement, and wholly are the rectangle and distribute, little texture is shark skin shield scale structure.
Preferably, the number of the micro-textures is 30-50, the depth of the micro-textures is 50-100 mu m, the distance between adjacent micro-textures is 300 mu m, and the distance between the first micro-texture and the cutting edge is 40 mu m.
Preferably, the lower half part of the shark skin shield scale structure is an elliptic semicircle, the width of the elliptic semicircle is 300 mu m, the length of the elliptic semicircle is 200 mu m, the bottom of the elliptic semicircle is in tangential geometric relationship with the cutting edge, and the upper half part of the elliptic semicircle is composed of symmetrical second-order Bezier curves.
A preparation method of a bionic shark skin micro-texture cutter,
step S1: carrying out micro-texture pattern design by utilizing CAD;
step S2: selecting laser engraving parameters;
step S3: marking and processing the shark skin micro-texture of the front cutter surface of the bionic shark skin micro-texture cutter by utilizing the selected laser marking parameters;
step S4: and after the preparation is finished, cleaning the cutter by using an ultrasonic cleaner.
Preferably, the laser marking power of the marking processing in the step S3 is 80%, the marking speed is 2000mm/S, and the marking frequency is 100Hz.
The principle and beneficial effect of this technical scheme:
when the cutter is used for cutting metal materials, the whole shape of the bionic micro-texture on the surface can effectively reduce the contact area of the cutter and scraps and has the effect of storing lubricant; the continuous array characteristic of the micro-texture can accelerate chip breaking in the cutting process; the structure of the shark skin shield scale accords with the fluid dynamics principle, and when the high-speed cutting processing is performed, the local flow velocity can be changed, and the gas pressure is generated, so that the purpose of accelerating the flying of the cuttings away from the processing area and taking away the cutting heat is achieved. Finally, the purpose of reducing cutting force and cutting temperature is achieved, so that the abrasion of the cutter is reduced, and the service life of the cutter is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a bionic shark skin micro-texture cutter according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a micro-texture of a bionic shark skin micro-texture cutter according to an embodiment of the present invention;
in the figure: 1. a rake face; 2. an auxiliary rear cutter surface; 3. a cutting edge; 4. micro-texture; 5. front and rear faces.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and embodiments:
the bionic shark skin micro-texture 4 cutter shown in the figures 1 to 2 comprises a cutter, wherein the cutter comprises a front cutter face 1, a front cutter face 5, a rear cutter face 2 and a hard alloy milling blade of a cutting edge 3, the front angle of the cutter is 10 degrees, the rear angle of the cutter is 11 degrees, a plurality of micro-textures 4 are processed and arranged on the front cutter face 1 in a longitudinal and transverse array mode, the micro-textures 4 are distributed in a rectangular mode integrally, and the micro-textures 4 are of a shark skin shield scale structure.
Preferably, the number of microtextures 4 is 30-50, the depth of the microtextures 4 is 50-100 μm, the distance between adjacent microtextures 4 is 300 μm, and the distance between the first microtexture 4 and the cutting edge 3 is 40 μm.
Preferably, the lower half part of the shark skin shield scale structure is an elliptic semicircle, the width of the elliptic semicircle is 300 mu m, the length of the elliptic semicircle is 200 mu m, the bottom of the elliptic semicircle is in tangential geometric relationship with the cutting edge 3, and the upper half part of the elliptic semicircle is composed of symmetrical second-order Bezier curves.
The design of the shark skin micro-texture 4 on the surface of the cutter, wherein the shape of the micro-texture 4 consists of an ellipse lower semicircle and two second-order Bezier curves symmetrical about a y axis, and is shown in figure 2. The mathematical expression of the bionic shark skin micro-texture 4 is as follows:
wherein P is A 、P B 、P C 、P D 、P E The coordinates of five-point vertexes of A, B, C, D, E are respectively represented, t is a parameter, a is an ellipse major half axis, and b is an ellipse minor half axis. By observing the geometric microstructure of the shark skin, the included angles theta of the ellipse major half axis a, the ellipse minor half axis b, the AD and the y axis are taken as geometric parameters for determining the shape of the shark skin micro-texture 4, and the specific contour of the shark skin micro-texture 4 depends on the geometric parameters. The geometric parameters of the tool surface micro-texture 4 are as follows: a=200 μm, b=150 μm, θ=10°.
A preparation method of a bionic shark skin micro-texture 4 cutter comprises the following steps:
step S1: carrying out micro-texture 4 pattern design by utilizing CAD;
step S2: selecting laser engraving parameters;
step S3: and marking and processing the bionic shark skin micro-texture 4 on the cutter front surface 1 by using the selected laser marking parameters, wherein the marking and processing adopts a Kienji MD-X2000A laser marking machine to prepare the shark skin micro-texture 4 on the YW1 hard alloy cutter front surface 1. The laser marking parameters are selected by comparing the laser marking effects: the laser marking power is 80%, the marking speed is 2000mm/s, and the marking frequency is 100Hz;
step S4: and after the preparation is finished, cleaning the cutter by using an ultrasonic cleaner.
Bionic shark skin micro-texture 4 cutter milling experiment:
the dry cutting experiment is carried out by designing a bionic shark skin micro-texture 4 cutter, and the milling experiment is completed on a VMC850LA four-axis machining center. The work piece was a GH4169 superalloy block 30mm by 20mm by 14mm and the cutting force was measured using a dynamic force measuring system Kistler9129 AA. Exploring cutting speed v c Per tooth feed f z Depth of cut a p Three factors influence the surface quality of the GH4169 superalloy milled by the bionic shark skin micro-texture 4 cutter. The result shows that the bionic shark skin micro-texture 4 cutter has excellent effects of reducing cutting force, improving chip curling degree and surface roughness. The milling surface quality of the workpiece is best when the cutting speed is 200m/min, the feeding amount per tooth is 0.1mm/z and the cutting depth is 1.8 mm.
The foregoing is merely exemplary embodiments of the present invention, and detailed technical solutions or features that are well known in the art will not be described in detail herein. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the technical scope of the invention, and these should also be regarded as the scope of the invention, which does not affect the effect of the invention and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (5)
1. A bionic shark skin micro-texture cutter is characterized in that: the cutter comprises a cutter body, wherein the cutter body comprises a front cutter surface (1), a front cutter surface (5), a rear cutter surface (2) and a cutter blade (3), the front angle of the cutter body is 10 degrees, the rear angle of the cutter body is 11 degrees, a plurality of micro-textures (4) are processed on the front cutter surface (1), the micro-textures (4) are arranged in a longitudinal and transverse array mode and are distributed in a rectangular mode integrally, and the micro-textures (4) are in a shark skin shield scale structure.
2. The bionic shark skin micro-textured cutter according to claim 1, wherein: the number of the micro-textures (4) is 30-50, the depth of the micro-textures (4) is 50-100 mu m, the distance between every two adjacent micro-textures (4) is 300 mu m, and the distance between the first micro-texture (4) and the cutting edge (3) is 40 mu m.
3. The bionic shark skin micro-textured cutter according to claim 1, wherein: the lower half part of the shark skin shield scale structure is an elliptic semicircle, the width of the elliptic semicircle is 300 mu m, the length of the elliptic semicircle is 200 mu m, the bottom of the elliptic semicircle is in tangential geometric relationship with the cutting edge (3), and the upper half part of the elliptic semicircle is composed of symmetrical second-order Bezier curves.
4. A preparation method of a bionic shark skin micro-texture cutter is characterized by comprising the following steps:
step S1: carrying out micro-texture (4) pattern design by utilizing CAD;
step S2: selecting laser engraving parameters;
step S3: marking and processing the bionic shark skin micro-texture (4) on the cutter front surface (1) by utilizing the selected laser marking parameters to obtain the shark skin micro-texture (4) of the cutter front surface (1);
step S4: and after the preparation is finished, cleaning the cutter by using an ultrasonic cleaner.
5. The method for preparing the bionic shark skin micro-texture cutter according to claim 4, wherein the method comprises the following steps: and the marking processing laser marking power in the step S3 is 80%, the marking speed is 2000mm/S, and the marking frequency is 100Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410066588.4A CN117798414A (en) | 2024-01-17 | 2024-01-17 | Bionic shark skin micro-texture cutter and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410066588.4A CN117798414A (en) | 2024-01-17 | 2024-01-17 | Bionic shark skin micro-texture cutter and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117798414A true CN117798414A (en) | 2024-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410066588.4A Pending CN117798414A (en) | 2024-01-17 | 2024-01-17 | Bionic shark skin micro-texture cutter and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117798414A (en) |
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2024
- 2024-01-17 CN CN202410066588.4A patent/CN117798414A/en active Pending
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