CN109623157A - A method of covering oil film laser-textured surface texture - Google Patents
A method of covering oil film laser-textured surface texture Download PDFInfo
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- CN109623157A CN109623157A CN201811586746.XA CN201811586746A CN109623157A CN 109623157 A CN109623157 A CN 109623157A CN 201811586746 A CN201811586746 A CN 201811586746A CN 109623157 A CN109623157 A CN 109623157A
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- oil film
- laser
- texture
- covering
- textured surface
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/361—Removing material for deburring or mechanical trimming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
A method of covering oil film laser-textured surface texture, comprising the following steps: (1) be processed by shot blasting metal dish；(2) the processed metallic disc surface of step (1) is covered into one layer of oil film；(3) metal dish for covering oil film is laser machined, obtains required texture surface；The beneficial effects of the present invention are: (1) effectively reduces averaged spur height；(2) metal oxide area coverage is effectively reduced；(3) texture processing efficiency influences smaller；In addition, the present invention have many advantages, such as it is easy to process, simple and fast, widely applicable, cheap economical.
Description
Technical field
The invention belongs to Surface Texture technical field, in particular to a kind of method for covering oil film laser-textured surface texture.
Technical background
Surface Texture refers to micro- with secondary surface processing micro structure, including surface in machinery by method physically or chemically
Hole, very low power, to improve the cutting edge technology of its tribological property.In the latest 20 years, a large amount of research demonstrates Surface Texture tool
There are storage abrasive dust, oil liquid, the effect of microfluid hydrodynamic lubrication is improving mechanical system lubrication, reducing friction, abrasion, extending the service life
Etc. have remarkable result.
The common processing method of texture has: laser ablation, electrochemical corrosion, molding etc..Wherein laser ablation method has essence
The advantages that really controllable, high in machining efficiency, therefore be widely applied.However, the processing of laser ablation method texture often generates
Metal oxide is formed so-called " burr " in the accumulation of texture periphery.These metal oxides have higher than metallic matrix
Hardness, therefore subsequent " burr " remove work, such as grinding or weak acid corrosion etc., it is complicated and inefficient.Low temperature process
(CN201610981257) laser ablation heat dissipation can be made highly efficient, therefore be conducive to processing to obtain smooth and burr less
Textured surfaces.However, workpiece this method temperature control biggish for volume is more difficult, higher cost.
Summary of the invention
In order to overcome the defects of the prior art described above, oil film laser-textured surface is covered the object of the present invention is to provide one kind to knit
The method of structure while reducing burr, also guarantees the working depth and efficiency of texture by selecting reasonable oil film thickness.
A method of covering oil film laser-textured surface texture, comprising the following steps:
(1) metal dish is processed by shot blasting, the finish of metal dish is made to reach Ra0.012 μm-Ra0.022 μm；
(2) the processed metallic disc surface of step (1) is covered into one layer of oil film；
(3) metal dish for covering oil film is laser machined, obtains required texture surface.
Covering oil film in the step (2) on metal dish is to carry out oil film thickness increase using 50 μ L micropipettors,
Cover one layer of 35# paraffin oil oil film.
Oil film thickness is 0.27-0.29mm in the step (2).
Texture depth is 25-35 μm in the step (3).
Texture shape is circular pit in the step (3), and diameter is 100 μm, and texture spacing is 50 μm, depth 30
μm。
Using laser processing in the step (3), laser focusing focal length is 83mm, laser power 10W, laser beam
Movement speed is 200mm/s, laser beam movement routine is "the" shape track, and each texture marking processing times are 2 times.
Compared with prior art, the beneficial effects of the present invention are:
(1) averaged spur height is effectively reduced；
(2) metal oxide area coverage is effectively reduced；
(3) texture processing efficiency influences smaller.
In addition, the present invention have many advantages, such as it is easy to process, simple and fast, widely applicable, cheap economical.
Detailed description of the invention
Fig. 1 is to cover oil film in the embodiment of the present invention to laser machine texture schematic diagram.
Fig. 2 is the optics metallographic microscope of the textured surfaces laser machined under different oil film thicknesses.
Fig. 3 is texture depth and burr height with oil film thickness change curve, and wherein Fig. 3 (a) is texture depth with covering
Oil film thickness changes schematic diagram；Fig. 3 (b) is burr height with covering oil film thickness variation schematic diagram.
Fig. 4 is that the super depth of field three-dimensional of textured surfaces of oil-free covering processing and the covering laser processing of 0.28mm oil film is micro-
Figure.
Fig. 5 is to cover oil process to reduce metal oxide accumulation schematic diagram.
Fig. 6 is influence schematic diagram of the oil film to laser focus point.
Specific embodiment
With reference to the accompanying drawing and example invention is further described in detail.
As shown in Figure 1, the invention proposes a kind of methods for covering oil film laser processing texture, comprising the following steps:
(1) metal dish is processed by shot blasting, the finish of metal dish is made to reach Ra0.012 μm-Ra0.022 μm；
(2) the ebonite band that a circle fits closely metal plate edge and slightly above metal plate edge is fixed around metal dish,
The 35# paraffin oil oil film that a layer thickness is 0.28mm is covered in metallic disc surface by micropipettor；
(3) the metal dish sample for covering uniform oil film is obtained satisfactory as processing is performed etching under laser
Texture；Laser is set machined parameters: focal distance 83mm, laser power are 10W (rated power 20W), laser beam
Movement speed is 200mm/s, laser beam movement routine is "the" shape track, and processed Surface Texture diameter is 100 μm, two circles
Spacing between shape is 50 μm, and processing times are 2 times.
Fig. 2 show covering oil mass from 100 μ L to 700 μ L, and spacing gradient is 100 μ L, i.e. covering oil film thickness h is
0.14mm to 0.99mm, spacing gradient 0.14mm, with 20% working power, the process velocity of 50mm/s defaults machining path
(i.e. 10 ° inclinations) completes the optics metallographic microscope for the textured surfaces that processing obtains.
As shown in Fig. 3 (a), with the increase of covering oil film thickness, the depth for the texture processed is gradually reduced, in oil film
After thickness reaches 0.28mm, sharp fall occurs for texture depth；As shown in Fig. 3 (b), with the increasing of covering oil film thickness
Add, the oxide that the texture periphery processed is formed gradually decreases, and burr height gradually decreases, and line is presented in variation tendency substantially
Property.
As shown in figure 4, comparison display covers laser processing textured surfaces without oil film and 0.28mm oil film covering laser adds
Work textured surfaces, the oxygen covered in the texture peripheral edge oxide protrusion and green surface in 0.28mm oil film coverage diagram
Compound is compared to there is apparent reduction in no oil film coverage diagram, while the height of texture peripheral edge oxide protrusion also has substantially
Degree reduces.
As shown in figure 5, of the present invention, to cover oil film laser-textured surface texture method principle as follows:
(1) it as do not covered shown in oil in Fig. 5, when high energy laser is irradiated to metal surface, generates big calorimetric and makes metal molten
Change.During laser beam mobile forming texture shape, molten metal, which overflows or sputters texture pit, is adhered to peripheral edge,
Form rough oxide and burr；
(2) as covered shown in oil in Fig. 5, after metal surface covers one layer of oil film, high energy laser is irradiated to metal watch
The molten metal generated when face, it is not direct to be in contact with metal surface due to the barrier action of oil film, effectively reduce oxidation
Object green surface attachment or make attachment it is more loose, convenient for being purged in subsequent processing.
As shown in fig. 6, the focusing to laser beam in metal patterned surface is generated shadow when oil film thickness reaches certain value
It rings, will result directly in texture depth sharp fall, and be unable to reach quality requirement.
Claims (7)
1. a kind of method for covering oil film laser-textured surface texture, which comprises the following steps:
(1) metal dish is processed by shot blasting, the finish of metal dish is made to reach Ra0.012 μm-Ra0.022 μm；
(2) the processed metallic disc surface of step (1) is covered into one layer of oil film；
(3) metal dish for covering oil film is laser machined, obtains required texture surface.
2. a kind of method for covering oil film laser-textured surface texture according to claim 1, which is characterized in that the step
(2) covering oil film on metal dish is to carry out oil film thickness increase using 50 μ L micropipettors, covers one layer of 35# paraffin oil oil
Film.
3. a kind of method for covering oil film laser-textured surface texture according to claim 1, which is characterized in that the step
(2) oil film thickness is 0.27-0.29mm in.
4. a kind of method for covering oil film laser-textured surface texture according to claim 1, which is characterized in that the step
(3) texture depth is 25-35 μm in.
5. a kind of method for covering oil film laser-textured surface texture according to claim 1, which is characterized in that the step
(3) texture shape is circular pit in, and diameter is 100 μm, and texture spacing is 50 μm, and depth is 30 μm.
6. a kind of method for covering oil film laser-textured surface texture according to claim 1, which is characterized in that the step
Suddenly using laser processing in (3), laser focuses focal length as 83mm, laser power 10W, moving speed of laser beam 200mm/
S, laser beam movement routine is "the" shape track, and each texture marking processing times are 2 times.
7. a kind of method for covering oil film laser-textured surface texture according to claim 1, which is characterized in that the step
(2) oil film thickness is 0.28mm in；Texture depth is 25-35 μm in the step (3)；Texture shape is in the step (3)
Circular pit, diameter are 100 μm, and texture spacing is 50 μm, and depth is 30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811586746.XA CN109623157A (en) | 2018-12-25 | 2018-12-25 | A method of covering oil film laser-textured surface texture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811586746.XA CN109623157A (en) | 2018-12-25 | 2018-12-25 | A method of covering oil film laser-textured surface texture |
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| CN109623157A true CN109623157A (en) | 2019-04-16 |
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| CN201811586746.XA Pending CN109623157A (en) | 2018-12-25 | 2018-12-25 | A method of covering oil film laser-textured surface texture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975121A (en) * | 2021-02-08 | 2021-06-18 | 杭州电子科技大学 | Steel surface microtexture laser processing method capable of preventing molten slag from splashing |
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| CN101318262A (en) * | 2008-06-25 | 2008-12-10 | 江苏大学 | Laser micro-modelling method for cam surface profile |
| CN103307106A (en) * | 2013-06-28 | 2013-09-18 | 江苏大学 | Self-lubricating processing method of bearing |
| CN105583532A (en) * | 2016-01-28 | 2016-05-18 | 江苏大学 | Method for reducing laser drilling surface splashes |
| JP2016190337A (en) * | 2015-03-30 | 2016-11-10 | 株式会社神戸製鋼所 | Surface-treated aluminum plate, manufacturing method therefor, surface-treated aluminum structure and manufacturing method therefor |
| CN106925894A (en) * | 2017-03-15 | 2017-07-07 | 江苏理工学院 | A kind of method that laser micro molding prepares bearing corrosion-resistant surface |
-
2018
- 2018-12-25 CN CN201811586746.XA patent/CN109623157A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318262A (en) * | 2008-06-25 | 2008-12-10 | 江苏大学 | Laser micro-modelling method for cam surface profile |
| CN103307106A (en) * | 2013-06-28 | 2013-09-18 | 江苏大学 | Self-lubricating processing method of bearing |
| JP2016190337A (en) * | 2015-03-30 | 2016-11-10 | 株式会社神戸製鋼所 | Surface-treated aluminum plate, manufacturing method therefor, surface-treated aluminum structure and manufacturing method therefor |
| CN105583532A (en) * | 2016-01-28 | 2016-05-18 | 江苏大学 | Method for reducing laser drilling surface splashes |
| CN106925894A (en) * | 2017-03-15 | 2017-07-07 | 江苏理工学院 | A kind of method that laser micro molding prepares bearing corrosion-resistant surface |
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| 关振中: "《激光加工工艺手册》", 31 October 2007 * |
| 孙建国: "《滑动轴承摩擦副微织构表面自润滑技术及性能研究》", 《中国优秀硕士学位论文全文数据库目工程科技II辑》 * |
| 虞钢等: "《激光先进制造技术及其应用》", 31 October 2016 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975121A (en) * | 2021-02-08 | 2021-06-18 | 杭州电子科技大学 | Steel surface microtexture laser processing method capable of preventing molten slag from splashing |
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