CN109732215A - Laser machine the method and system of product surface processing - Google Patents
Laser machine the method and system of product surface processing Download PDFInfo
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- CN109732215A CN109732215A CN201910096772.2A CN201910096772A CN109732215A CN 109732215 A CN109732215 A CN 109732215A CN 201910096772 A CN201910096772 A CN 201910096772A CN 109732215 A CN109732215 A CN 109732215A
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Abstract
The invention belongs to field of laser processing, disclose a kind of method and system of laser processing product surface processing, the system includes: the sintering furnace of laser process equipment and temperature-adjustable, this method is applied in the system, this method includes being laser machined by the surface of laser process equipment towards processed products, so that the predetermined pattern of the carved upper laser process equipment in the surface of processed product, processed product after being laser machined is put into sintering furnace, adjust the temperature in sintering furnace, until the color for the predetermined pattern that the surface of processed product has been carved becomes white, the cooling sintering furnace, product after being processed.After processed product after having been laser machined is put into sintering furnace by this method, by adjusting the temperature in sintering furnace, become white come the color for the predetermined pattern for having carved the surface of processed product, laser action is overcome the problem of product occurs oxygen vacancy, lead to color blackening because of the influence of instantaneous high-temperature.
Description
Technical field
The present invention relates to field of laser processing more particularly to a kind of method and systems of laser processing product surface processing.
Background technique
There is ceramic material good mechanical and high temperature resistance, distinctive covalent bond and ion bond structure to make it have
Good comprehensive mechanical property and mechanical performance, ceramics strength is high, but brittleness is big, universal to the machining process of ceramics at present
There are problems that easy fragmentation, is unable to satisfy fixed point, labyrinth and high-precision processing request.Laser processing technology relies on its nothing
Contact is suitable for the advantages outstanding such as complicated processing, is widely used in the rapidoprint of metal, ceramics.
In existing laser processing technology, laser used is nanosecond laser and ultrashort pulsewidth laser, but ultrashort
Pulse laser is expensive, is difficult to use in the processing of general material, therefore laser processing technology often uses nanosecond laser,
More than nanosecond pulsewidth laser is mainly in such a way that lattice/straight vaporization of Electron Heat Conduction material fusing is by material removal, no
Evitable the problems such as being accumulated there are heat affected area, thermal strain crackle and slag residue, heat affected area, thermal strain crackle and slag
Residue accumulation etc. limits laser processing precision, and laser action, because oxygen vacancy occurs for the influence of instantaneous high-temperature, occurs on ceramics
Color change leads to color blackening.
Summary of the invention
The main purpose of the present invention is to provide a kind of method and systems of laser processing product surface processing, for solving
The prior art laser action when on product because instantaneous high-temperature influence occur oxygen vacancy, lead to color blackening technical problem.
To achieve the above object, first aspect present invention provides a kind of method of laser processing product surface processing, described
Method includes:
It is laser machined by the surface of laser process equipment towards processed products, so that the table of the processed product
The predetermined pattern of the carved laser process equipment in face；
The processed product after being laser machined is put into sintering furnace, adjusts the temperature in the sintering furnace,
Until the color for the predetermined pattern that the surface of the processed product has been carved becomes white；
The cooling sintering furnace, the product after being processed.
Optionally, the processed product is placed in the laser processing platform of the laser process equipment；
The laser process equipment is opened, the focal length of the laser process equipment is adjusted, makes the laser process equipment
Laser focus point is located at the radium-shine region of the processed product；
The radium-shine parameter of the laser process equipment is adjusted, and exports the trend of laser by control laser process equipment,
Go out the predetermined pattern in the radium-shine region etch of the processed product, the radium-shine parameter is for controlling the production to be processed
The radium-shine depth and color change on the surface of product.
Optionally, it adjusts the constant temperature in the sintering furnace and is increased to preset temperature, and kept within preset time period
Temperature in the sintering furnace is preset temperature.
Optionally, 600- is increased to the temperature that 1 DEG C/min -10 DEG C/min of heating rate adjusts the sintering furnace
1000 DEG C, the sintering furnace is kept the temperature 1-3 hours.
Second aspect of the present invention provides a kind of system of laser processing product surface processing, the system comprises: the system
System includes: the sintering furnace of laser process equipment and temperature-adjustable；
Surface of the laser process equipment for towards processed products is laser machined, so that the processed product
The carved laser process equipment in surface predetermined pattern；
The sintering furnace is used to adjust the temperature of the processed product after having been laser machined, so that described to be added
The color for the predetermined pattern that the surface of chemical product has been carved becomes white.
Optionally, the laser process equipment includes: laser processing platform, laser aid and galvanometer；
The laser processing platform is for placing the processed product；
For the laser aid for exporting laser, the focus point of the laser is located at the radium-shine area of the processed product
Domain；
The laser aid is also used to control the radium-shine depth on the surface of the processed product by controlling radium-shine parameter
Degree and color change；
The galvanometer is used to control the trend of output laser, default to go out in the radium-shine region etch of the processed product
Pattern.
Optionally, the laser process equipment further includes brace, and the processed product is fixed on institute by the brace
It states in laser processing platform, the surface of the processed product and the mirror surface of the galvanometer are parallel to each other.
Optionally, the gas that the sintering furnace is passed through includes one of nitrogen, argon gas, reductive hydrogen or a variety of.
Optionally, the laser aid is nanosecond laser, the wavelength of the nanosecond laser be 1064nm, 532nm,
Any one in 355nm.
Optionally, the sintering furnace is specifically used for having carried out by the heating rate adjusting with 1 DEG C/min -10 DEG C/min
The temperature of the processed product after laser processing is increased to 600-1000 DEG C, and keeps the temperature 1-3 hours.
From the technical solution of above-mentioned offer it is found that the processed product after having been laser machined is put into sintering by this method
After in furnace, by adjusting the temperature in sintering furnace, become come the color for the predetermined pattern for having carved the surface of processed product
White overcomes laser action the problem of product occurs oxygen vacancy, lead to color blackening because of the influence of instantaneous high-temperature.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those skilled in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of flow diagram of the method for laser processing product surface processing provided in an embodiment of the present invention；
Fig. 2 be another embodiment of the present invention provides laser processing product surface processing method flow diagram；
Fig. 3 be another embodiment of the present invention provides laser processing product surface processing method step 201 refine step
Rapid flow diagram；
Fig. 4 be another embodiment of the present invention provides a kind of laser processing product surface processing system structural representation
Figure；
Fig. 5 be another embodiment of the present invention provides laser processing product surface processing system in laser process equipment
Concrete structure schematic diagram.
Specific embodiment
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, and not all embodiments.Based on the embodiments of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Due to laser action when on product because instantaneous high-temperature influence occur oxygen vacancy, cause color blackening technology to be asked
Topic.In order to solve the above-mentioned technical problem, a kind of method that the present invention proposes laser processing product surface processing.
Referring to Fig. 1, being that a kind of process for laser machining the method that product surface is handled provided in an embodiment of the present invention is shown
It is intended to, this method is applied in laser-processing system, and laser-processing system includes laser process equipment and sintering furnace, this method packet
It includes:
Step 101 is laser machined by the surface of laser process equipment towards processed products, so that the production to be processed
The predetermined pattern of the carved upper laser process equipment in the surface of product.
Wherein, laser process equipment is to make material that vaporization occur in the TRANSIENT HIGH TEMPERATURE that focal point generates using laser and etch
The surface of the processed product goes out predetermined pattern in processed product surface etch, because of the fuel factor of laser, in product surface shape
At pattern be differently formed deep mixed color-shifting images because of the energy of the effect of laser, can be yellow or black.
Processed product after being laser machined is put into sintering furnace by step 102, adjusts the temperature in the sintering furnace
Degree, until the color for the predetermined pattern that the surface of processed product has been carved becomes white.
Specifically, the processed product after laser process equipment is carved will be had been subjected to and is put into sintering furnace, adjusted in sintering furnace
Temperature increase, the processed product in sintering furnace is constantly heated, heat the processed product to product surface change colour it is pre-
If pattern becomes white, i.e. product surface becomes white.
Step 103, the cooling sintering furnace, the product after being processed.
Wherein, the predetermined pattern of product surface discoloration is not necessarily to continue to heat product after becoming white, closes the burning
Freezing of a furnace keeps the product cooling with sintering furnace, obtains the constant finished product of color.
From the technical solution of above-mentioned offer it is found that the processed product after having been laser machined is put into sintering by this method
After in furnace, by adjusting the temperature in sintering furnace, become come the color for the predetermined pattern for having carved the surface of processed product
White overcomes laser action the problem of product occurs oxygen vacancy, lead to color blackening because of the influence of instantaneous high-temperature.
Referring to Fig. 2, Fig. 2 be another embodiment of the present invention provides laser processing product surface processing method process
Schematic diagram, the method comprising the steps of 201 to step 203:
Step 201 is laser machined by the surface of laser process equipment towards processed products, so that the production to be processed
The predetermined pattern of the carved upper laser process equipment in the surface of product.
Specifically, as shown in figure 3, Fig. 3 be another embodiment of the present invention provides laser processing product surface processing side
The flow diagram of step 201 refinement step of method, step 201 specific steps include:
Processed product is placed in the laser processing platform of laser process equipment by step 301.Wherein, production to be processed
Product are fixed in laser processing platform by brace.
Step 302 opens laser process equipment, adjusts the focal length of the laser process equipment, makes swashing for laser process equipment
Light focus point is located at the radium-shine region of processed product.
Wherein, the radium-shine region of converted products is the region that converted products carries out laser marking.
Step 303, the radium-shine parameter for adjusting laser process equipment, and walking for laser is exported by control laser process equipment
To, go out predetermined pattern in the radium-shine region etch of processed product, surface of the radium-shine parameter for controlling processed product
Radium-shine depth and color change.
Wherein, radium-shine parameter includes radium-shine power, mark speed and mark frequency, radium-shine power, mark speed and mark
Frequency determines laser in the radium-shine depth on processed product surface and the depth of color.It therefore can be by adjusting radium-shine parameter
Control the depth of product surface radium-shine depth and color.
In embodiments of the present invention, for radium-shine power control in 40%-80%, mark speed is 300-1500mm/s, frequency
In 10-60KHZ, filling spacing is 0.005-0.6 millimeters.
It should be noted that this method can control the radium-shine depth of product surface in Nano grade.
It should also be noted that, the laser that laser equipment generates mainly passes through lattice/Electron Heat Conduction and is melted to material
The mode in material place to go is etched the surface of product by vaporization.Which makes product surface machining area because of inevitable heat affecting
Change colour because of hot stack, can be changed to black or yellow.The default figure on the surface of the processed product after therefore being laser machined
Case is color-shifting images.
Processed product after being laser machined is put into sintering furnace by step 202, adjusts the temperature in the sintering furnace
It is increased to preset temperature, and keeps the temperature in sintering furnace for preset temperature within the preset period, until processed product
The color of predetermined pattern carved of surface become white.
Specifically, there is the processed product of color-shifting images to be put into sintering furnace surface, with 1 DEG C/min -10 DEG C/minute
The temperature that the heating rate of clock adjusts sintering furnace is increased to 600-1000 DEG C, sintering furnace is kept the temperature 1-3 hours, until production to be processed
The color for the predetermined pattern that the surface of product has been carved becomes white.Wherein, processed product is constantly heated in sintering furnace, specifically
Heating time is arranged according to the time that processed product needs.
Wherein, used sintering furnace is one of nitrogen, argon gas or reductive hydrogen furnace or a variety of, and product is put into
After heating a period of time in sintering furnace, the predetermined pattern of product surface discoloration is to become white.
It should be noted that the predetermined pattern that product is put into heating a period of time rear surface discoloration in sintering furnace becomes white again,
Subsequent closing sintering furnace becomes white influence again less by changing colour to pattern.
Step 203, cooling sintering furnace, the product after being processed.The pattern on the surface of the product after processing is white, is obtained
The product not changed to color.
Optionally, product can be ceramic product or other products that can be handled by sintering furnace.
It should be noted that the technology also atmosphere furnace can be used to replace sintering furnace.
The method handled from laser processing product surface provided in an embodiment of the present invention will be it is found that in a first aspect, this method will
It is to be processed to make by adjusting the temperature in sintering furnace after processed product after having been laser machined is put into sintering furnace
The color for the predetermined pattern that the surface of product has been carved becomes white, overcomes influence of the laser action in product because of instantaneous high-temperature
The problem of oxygen vacancy occurs, leads to color blackening.Second aspect, this method compared with the prior art, can be overcome using sintering furnace
The color tuning problems of depiction, reduce costs.
Referring to Fig. 4, Fig. 4 is a kind of structure of the system of laser processing product surface processing provided in an embodiment of the present invention
Schematic diagram, the system include: the sintering furnace 2 of laser process equipment 1 and temperature-adjustable, and laser process equipment 1 is used for to be added
The surface of chemical product is laser machined, so that the predetermined pattern of the carved upper laser process equipment in the surface of processed product.
Sintering furnace 2 is used to adjust the temperature of the processed product after having been laser machined, so that the surface of the processed product has been carved
The color of the predetermined pattern at quarter becomes white.
Specifically, surface carries out laser engraving to laser process equipment 1 towards processed products, so that the table of the processed product
The predetermined pattern of the carved upper laser process equipment in face, the predetermined pattern of product surface engraving is the predetermined pattern of discoloration.
Sintering furnace 2 is by adjusting the temperature of the processed product after having been laser machined with 1 DEG C/min -10 DEG C/min of heating rate
Degree is increased to 600-1000 DEG C, and keeps the temperature 1-3 hours, heats processed product, so that the surface discolouration of the processed product
Predetermined pattern becomes white again.Cooling product, obtains the constant finished product of pattern color.
Further, the gas that sintering furnace is passed through includes one of nitrogen, argon gas, reductive hydrogen or a variety of, sintering
The effect being sintered in furnace is preferable.
Referring to Fig. 5, Fig. 5 is to laser machine in the system provided in an embodiment of the present invention for laser machining product surface processing
The schematic diagram of the specific structure of equipment, laser process equipment 1 include: laser processing platform 11, laser aid 12 and galvanometer 13；
Laser processing platform 11 is for placing processed product, and laser aid 12 is for exporting laser, the focus point of laser
Positioned at the radium-shine region of processed product, laser aid 12 is also used to control the table of processed product by controlling radium-shine parameter
The radium-shine depth and color change in face.Galvanometer 13 is used to control the trend of output laser, in the radium-shine region of processed product
Pre- placing graphic pattern is etched, the pattern after etching is color-shifting images.
Specifically, laser process equipment 1 further includes brace 14, and processed product is to be fixed on laser processing by brace 14
In platform 11, the surface of processed product and the mirror surface of galvanometer 13 are parallel to each other, and laser aid 12 exports the focusing point of laser
In the radium-shine region of product, make the region of laser ablation product surface in radium-shine region, laser aid 12 controls radium-shine parameter
Control the radium-shine depth and color change on the surface of processed product, the trend of the control output laser of galvanometer 13, in product
Radium-shine region etch goes out predetermined pattern.
Wherein, brace 14 is made according to the shape and size of processed product, and brace 14 is for fixing the production to be processed
Product make the laser head of processed product surface and laser process equipment be parallel to each other.Radium-shine parameter includes radium-shine power, mark speed
Degree and mark frequency, radium-shine power, mark speed and mark frequency determine laser in the radium-shine depth on the surface of processed product
Degree and color change.
Optionally, galvanometer 13 is high-speed vibrating mirror.If processed product is three-dimensional curved surface products by a small margin, 3D laser can be used
Head so that laser focal is followed product curved surface zoom, if processed product be large format three-dimensional curved surface products, can be used laser head with
It is consistent with lens location focal length to meet radium-shine region with the radium-shine function of movement, so that product and camera lens keep relative level, protect
Demonstrate,prove the machining accuracy of laser.
In embodiments of the present invention, for radium-shine power control in 40%-80%, mark speed is 300-1500mm/s, frequency
In 10-60KHZ, filling spacing is 0.005-0.6 millimeters.
It should be noted that the system can control the radium-shine depth of product surface in Nano grade.
Further, laser aid 12 is nanosecond laser, and the wavelength of nanosecond laser is 1064nm, 532nm, 355nm
In any one, nanosecond laser price is cheap with respect to ultrashort pulse laser, is easier to obtain.
It should be noted that the technology also atmosphere furnace can be used to replace sintering furnace.
It should be noted that the laser that nanosecond laser generates mainly passes through lattice/Electron Heat Conduction and is melted to material
The mode in material place to go is etched the surface of product by vaporization.Which makes product surface machining area because of inevitable heat affecting
Change colour because of hot stack, can be changed to black or yellow.
The system handled from laser processing product surface provided in an embodiment of the present invention is it is found that in a first aspect, the system is logical
Burning freezing of a furnace adjusts the temperature of the processed product after having been laser machined, pre- carved the surface of processed product
If the color of pattern becomes white, laser action is overcome in product because oxygen vacancy occurs for the influence of instantaneous high-temperature, leads to color
The problem of blackening；Second aspect, which, which adjusts technological parameter using nanosecond laser, can obtain the constant product of color, phase
For using expensive ultrashort pulsewidth laser, reduce costs.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.
The above are to it is provided by the present invention it is a kind of laser processing product surface processing method and system description, for
Those skilled in the art, thought according to an embodiment of the present invention have change in specific embodiments and applications
Place, to sum up, the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of method of laser processing product surface processing, which is characterized in that the described method includes:
It is laser machined by the surface of laser process equipment towards processed products, so that the surface quilt of the processed product
The predetermined pattern of the laser process equipment on engraving；
The processed product after being laser machined is put into sintering furnace, adjusts the temperature in the sintering furnace, until
The color for the predetermined pattern that the surface of the processed product has been carved becomes white；
The cooling sintering furnace, the product after being processed.
2. the method according to claim 1, wherein the table by laser process equipment towards processed products
Face is laser machined, so that the tool of the predetermined pattern of the carved laser process equipment in the surface of the processed product
Body step includes:
The processed product is placed in the laser processing platform of the laser process equipment；
The laser process equipment is opened, the focal length of the laser process equipment is adjusted, makes the laser of the laser process equipment
Focus point is located at the radium-shine region of the processed product；
The radium-shine parameter of the laser process equipment is adjusted, and exports the trend of laser by control laser process equipment, in institute
The radium-shine region etch for stating processed product goes out the predetermined pattern, and the radium-shine parameter is for controlling the processed product
The radium-shine depth and color change on surface.
3. the method according to claim 1, wherein the step of temperature adjusted in the sintering furnace, is specific
Include:
It adjusts the constant temperature in the sintering furnace and is increased to preset temperature, and kept in the sintering furnace within preset time period
Temperature be preset temperature.
4. according to the method described in claim 3, it is characterized in that, the constant temperature adjusted in the sintering furnace is increased to
Preset temperature, and the step of keeping the temperature in the sintering furnace to be preset temperature within preset time period specifically includes:
It is increased to 600-1000 DEG C with the temperature that 1 DEG C/min -10 DEG C/min of heating rate adjusts the sintering furnace, it will be described
Sintering furnace keeps the temperature 1-3 hours.
5. a kind of system of laser processing product surface processing, which is characterized in that the system comprises: laser process equipments and can
Adjust the sintering furnace of temperature；
Surface of the laser process equipment for towards processed products is laser machined, so that the table of the processed product
The predetermined pattern of the carved laser process equipment in face；
The sintering furnace is used to adjust the temperature of the processed product after having been laser machined, so that the production to be processed
The color for the predetermined pattern that the surface of product has been carved becomes white.
6. system according to claim 5, which is characterized in that the laser process equipment includes: laser processing platform, swashs
Electro-optical device and galvanometer；
The laser processing platform is for placing the processed product；
For the laser aid for exporting laser, the focus point of the laser is located at the radium-shine region of the processed product；
The laser aid be also used to control by controlling radium-shine parameter the surface of the processed product radium-shine depth and
Color change；
The galvanometer is used to control the trend of output laser, to go out default figure in the radium-shine region etch of the processed product
Case.
7. system according to claim 6, which is characterized in that the laser process equipment further includes brace, described to be added
Chemical product is fixed in the laser processing platform by the brace, the mirror on the surface of the processed product and the galvanometer
Face is parallel to each other.
8. system according to claim 7, which is characterized in that the gas that the sintering furnace is passed through includes nitrogen, argon gas, goes back
One of originality hydrogen is a variety of.
9. according to system described in claim 5 to 8 any one, which is characterized in that the laser aid is nanosecond laser,
The wavelength of the nanosecond laser is any one in 1064nm, 532nm, 355nm.
10. system according to claim 9, which is characterized in that the sintering furnace is specifically used for by with 1 DEG C/min -10
DEG C/min the temperature of the processed product that adjusts after having been laser machined of heating rate be increased to 600-1000 DEG C,
And keep the temperature 1-3 hours.
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| CN113146027A (en) * | 2020-01-17 | 2021-07-23 | 大族激光科技产业集团股份有限公司 | Laser processing method and system for inner wall of revolving body |
| CN113896565A (en) * | 2021-09-30 | 2022-01-07 | 深圳泰德激光技术股份有限公司 | Ceramic golden surface preparation method and laser processing equipment |
| CN114378445A (en) * | 2022-02-25 | 2022-04-22 | 蓝思科技（长沙）有限公司 | Laser processing technology of colorful product, colorful product and electronic product |
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| CN114378445A (en) * | 2022-02-25 | 2022-04-22 | 蓝思科技（长沙）有限公司 | Laser processing technology of colorful product, colorful product and electronic product |
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Application publication date: 20190510 |