CN103317240B - The laser-induced thermal etching processing method of Mg alloy surface oxide layer - Google Patents
The laser-induced thermal etching processing method of Mg alloy surface oxide layer Download PDFInfo
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- CN103317240B CN103317240B CN201310293821.4A CN201310293821A CN103317240B CN 103317240 B CN103317240 B CN 103317240B CN 201310293821 A CN201310293821 A CN 201310293821A CN 103317240 B CN103317240 B CN 103317240B
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Abstract
The invention discloses a kind of laser-induced thermal etching processing method of Mg alloy surface oxide layer, the position that the surface of the laser beam irradiation magnesium alloy of utilization need etch, surface oxide layer is directly distilled, etches away surface oxide layer, for improving the electric conductivity of magnesium alloy.Not only easily can remove the oxide layer of magnesium alloy, and technique is simple, speed is fast, cost is low, it is low, pollution-free to consume energy.
Description
Technical field
The present invention relates to a kind of processing method of Mg alloy surface oxide layer, particularly relate to a kind of laser-induced thermal etching processing method of Mg alloy surface oxide layer.
Background technology
Magnesium alloy is the lightest structural metallic materials, and its density is 1.75-1.90g/cm
3, intensity and the elastic modelling quantity of magnesium alloy are lower, but it has higher specific strength and specific stiffness, in the component of identical weight, select magnesium alloy that component can be made to obtain higher rigidity.Magnesium alloy has very high damping capacity and good shock absorbing performance, and it can bear larger impact load.Magnesium alloy also has the advantages such as excellent electromagnetic wave shielding, well recyclability, and it has a wide range of applications in space flight, automobile, electronic product industry, particularly mobile phone part, and magnesium alloy is in mobile phone industry extensive use.
Magnesium alloy has very high chemistry and electro-chemical activity, particularly be easy to be corroded in malaria in an atmosphere, in order to improve the corrosion resistance of magnesium alloy, generally carry out chemical oxidation or anodized on its surface, substantially increase the surperficial corrosion resistance of magnesium alloy, but but greatly reduce the electric conductivity of Mg alloy surface.
In mobile phone part, some region of Mg alloy surface needs excellent electric conductivity, and this, with regard to needing the oxide etch of Mg alloy surface to fall, generally adopts method for chemially etching in prior art.
At least there is following shortcoming in above-mentioned prior art:
Cost is high, seriously polluted, energy consumption is high, complex process, easily hurt magnesium alloy inside.
Summary of the invention
The object of this invention is to provide that a kind of technique is simple, speed is fast, cost is low, the laser-induced thermal etching processing method of low, the free of contamination Mg alloy surface oxide layer that consumes energy.
The object of the invention is to be achieved through the following technical solutions:
The laser-induced thermal etching processing method of Mg alloy surface oxide layer of the present invention is the position utilizing the surface of laser beam irradiation magnesium alloy to etch, and surface oxide layer is directly distilled, etches away surface oxide layer, for improving the electric conductivity of magnesium alloy.
As seen from the above technical solution provided by the invention, the laser-induced thermal etching processing method of the Mg alloy surface oxide layer that the embodiment of the present invention provides, due to the position utilizing the surface of laser beam irradiation magnesium alloy to etch, surface oxide layer is directly distilled, etch away surface oxide layer, for improving the electric conductivity of magnesium alloy, not only easily can remove the oxide layer of magnesium alloy, and technique is simple, speed is fast, cost is low, it is low, pollution-free to consume energy.
Detailed description of the invention
To be described in further detail the embodiment of the present invention below.
The laser-induced thermal etching processing method of Mg alloy surface oxide layer of the present invention, its preferably detailed description of the invention be:
The position utilizing the surface of laser beam irradiation magnesium alloy to etch, makes surface oxide layer directly distil, etches away surface oxide layer, for improving the electric conductivity of magnesium alloy.
Described etch depth is 30 microns to 90 microns.
Comprise the steps:
First, drawing is finished in the region according to product needed etching in CAD software, and imports in the computer of laser engraving machine by drawing, sets the technological parameter of engraving;
Then, special fixture product being placed on engraving machine workbench clamps, according to described drawing, product is carved;
After engraving, product is taken off from fixture, be put in purpose-made pallet.
Described technological parameter comprises electric current, frequency, speed, line thickness and packed density.
Concrete technology parameter can be set as follows:
Current settings: 20A-30A, frequency setting: 10000HZ-20000HZ, Speed Setting: 200mm/s-500mm/s, line thickness sets: 0.1mm-0.2mm, and packed density sets: 0.01-0.04.
Need the shield door shutting engraving machine in engraving process, eyes do not look at laser beam straight.
The laser-induced thermal etching processing method of Mg alloy surface oxide layer of the present invention, utilizes high-octane laser beam irradiation to the surface of magnesium alloy, is directly distilled by surface oxide layer, substantially increase the electric conductivity of magnesium alloy; Accurately can control the energy of laser, the degree of depth etched can well be controlled, magnesium alloy inside can not be hurt; Can make the various patterns of customer requirement, the pattern of engraving is very accurate, can be as accurate as micron order, all right carve complexity, beautiful pattern; Not only can remove the oxide layer of magnesium alloy, not injure magnesium alloy internal structure, and technological operation is simple, speed is fast, pollution-free, low energy consumption, low cost.
Specific embodiment:
Utilize high-octane laser beam irradiation to the surface of magnesium alloy, directly distilled by surface oxide layer, etch away the electric conductivity that surface oxide layer just can improve magnesium alloy greatly, etch depth can be 30 microns to 90 microns.
Specifically comprise the steps:
A), in CAD software, drawing is finished according to the region of product needed etching.
B), the size of drawing will ensure and the consistent size of etching area.
C), drawing is imported in the computer of laser engraving machine.
D) technological parameter of engraving, is set;
E), product is placed on the special fixture of engraving machine workbench.
F), check whether product is in place, clamping.
G), open exhaust blower, shut shield door.
H), open the drawing needing engraving, product is carved.
I), carve complete, product is taken off from tool, is put in purpose-made pallet.
Wherein, steps d) in processing parameter setting be:
Current settings: 30A, frequency setting: 15000HZ, Speed Setting: 500mm/s, line thickness sets:
0.1mm, packed density sets: 0.04.
Wherein, step h) in must shut shield door in engraving process, eyes do not look at laser beam straight.
Product appearance and performance test:
Product carving area white color is bright.0.2 ohm is less than with the resistance of universal meter test products etching area ultimate range.
What the present invention adopted is semiconductor laser technique, has significant advantage compared with other etching technique, be first technological operation simple, be convenient to produce in enormous quantities.Secondly laser-induced thermal etching speed is fast, is that wet etching cannot be compared.It is finally low, with low cost, pollution-free, the pure environmental protection process technology of energy consumption.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (3)
1. a laser-induced thermal etching processing method for Mg alloy surface oxide layer, is characterized in that, the position that the surface of the laser beam irradiation magnesium alloy of utilization need etch, and surface oxide layer is directly distilled, etches away surface oxide layer, for improving the electric conductivity of magnesium alloy;
Described etch depth is 30 microns to 90 microns;
Technological parameter comprises electric current, frequency, speed, line thickness and packed density;
Described processing parameter setting is as follows:
Current settings: 20A-30A, frequency setting: 10000HZ-20000HZ, Speed Setting: 200mm/s-500mm/s, line thickness sets: 0.1mm-0.2mm, and packed density sets: 0.01-0.04.
2. the laser-induced thermal etching processing method of Mg alloy surface oxide layer according to claim 1, is characterized in that, comprise the steps:
First, drawing is finished in the region according to product needed etching in CAD software, and imports in the computer of laser engraving machine by drawing, sets the technological parameter of engraving;
Then, special fixture product being placed on engraving machine workbench clamps, according to described drawing, product is carved;
After engraving, product is taken off from fixture, be put in purpose-made pallet.
3. the laser-induced thermal etching processing method of Mg alloy surface oxide layer according to claim 2, is characterized in that, need the shield door shutting engraving machine in engraving process, eyes do not look at laser beam straight.
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| CN201310293821.4A CN103317240B (en) | 2013-07-12 | 2013-07-12 | The laser-induced thermal etching processing method of Mg alloy surface oxide layer |
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| CN201310293821.4A CN103317240B (en) | 2013-07-12 | 2013-07-12 | The laser-induced thermal etching processing method of Mg alloy surface oxide layer |
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| CN103317240A CN103317240A (en) | 2013-09-25 |
| CN103317240B true CN103317240B (en) | 2015-09-30 |
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| CN104384726B (en) * | 2014-09-18 | 2016-10-05 | 东明兴业科技股份有限公司 | The processing method of punching on a kind of plastic cement products |
| CN105537774A (en) * | 2016-02-27 | 2016-05-04 | 北京工业大学 | Oxidation film removing method based on femtosecond laser etching |
| EP3544760B1 (en) | 2016-11-23 | 2020-11-25 | Aperam | Method for laser stripping a moving metal product and plant for the execution thereof |
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| US5096882A (en) * | 1987-04-08 | 1992-03-17 | Hitachi, Ltd. | Process for controlling oxygen content of superconductive oxide, superconductive device and process for production thereof |
| CN2546462Y (en) * | 2001-11-22 | 2003-04-23 | 鸿富锦精密工业（深圳）有限公司 | Metal shell with decoration surface |
| CN1421548A (en) * | 2001-11-22 | 2003-06-04 | 鸿富锦精密工业（深圳）有限公司 | Anode treatment method of metal base surface |
| CN101619478A (en) * | 2009-07-29 | 2010-01-06 | 艾默生网络能源有限公司 | Method for oxygenizing aluminium base plate into characters, aluminium base plate manufacturing method and aluminium base plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59119781A (en) * | 1982-12-24 | 1984-07-11 | Nec Corp | Manufacture of semiconductor laser |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5096882A (en) * | 1987-04-08 | 1992-03-17 | Hitachi, Ltd. | Process for controlling oxygen content of superconductive oxide, superconductive device and process for production thereof |
| CN2546462Y (en) * | 2001-11-22 | 2003-04-23 | 鸿富锦精密工业（深圳）有限公司 | Metal shell with decoration surface |
| CN1421548A (en) * | 2001-11-22 | 2003-06-04 | 鸿富锦精密工业（深圳）有限公司 | Anode treatment method of metal base surface |
| CN101619478A (en) * | 2009-07-29 | 2010-01-06 | 艾默生网络能源有限公司 | Method for oxygenizing aluminium base plate into characters, aluminium base plate manufacturing method and aluminium base plate |
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