CN112974411B - Laser cleaning method for deoxidation - Google Patents
Laser cleaning method for deoxidation Download PDFInfo
- Publication number
- CN112974411B CN112974411B CN202110191224.5A CN202110191224A CN112974411B CN 112974411 B CN112974411 B CN 112974411B CN 202110191224 A CN202110191224 A CN 202110191224A CN 112974411 B CN112974411 B CN 112974411B
- Authority
- CN
- China
- Prior art keywords
- pbj
- cleaning
- boundary
- laser
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008859 change Effects 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 abstract description 8
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Cleaning In General (AREA)
Abstract
A laser cleaning method for deoxidation comprises the following steps: setting parameters for an upper computer according to the laser cleaning requirement; the control unit divides the cleaning track graph into areas; the control unit determines the change relation of the instantaneous power of the boundary area along with the X coordinate or the Y coordinate; the upper computer sends out an instruction to enable the control unit to start the laser to start laser cleaning; the control unit judges the corresponding area of the current cleaning position in real time and determines the current laser power; the control unit configures the obtained laser power to the laser according to the communication protocol. The invention can effectively realize deoxidation, improve the cleaning quality, avoid damaging the substrate, has simple and convenient operation, can adapt to different cleaning environments, saves the automatic control cost and improves the cleaning efficiency. The method can be widely used for laser cleaning.
Description
Technical Field
The invention relates to a laser cleaning method, in particular to a laser cleaning method for deoxidation.
Background
The laser cleaning is a novel cleaning technology which achieves the purpose of cleaning by interacting laser with higher energy density with substances, overcoming the binding force between the cleaned material and a substrate through the acting force generated by energy conversion and separating pollutants from the surface of the material through the action processes of light stripping, gasification, ablation, plasma, vibration and the like.
In the laser cleaning process, the acceleration or deceleration process of the galvanometer motor inevitably exists when the direction is switched, so that laser points in the corresponding acceleration and deceleration area are too dense. In the conventional cleaning method, the laser power is constant in the cleaning process, so that the temperature of an area corresponding to acceleration and deceleration is increased, further, oxidation is caused, and the cleaning effect is influenced.
The patent specification with the Chinese publication number of CN109290295A discloses an anti-oxidation laser cleaning device, and particularly, the device provided by the patent carries out laser cleaning on a workpiece in a sealed box, inert gas is introduced into the sealed box in the cleaning process, so that the laser cleaning is carried out under the condition of approximate oxygen-free condition, and the surface oxidation of the workpiece caused by oxygen and high temperature in the laser cleaning process is prevented. The method is complex in operation and high in cost, and cannot adapt to complex cleaning environments.
Therefore, it is necessary to provide a method for cleaning by deoxidation, which is easy to operate and can be adapted to different cleaning environments.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a deoxidation laser cleaning method which is simple and convenient to operate, prevents oxidation in the cleaning process and ensures the cleaning quality.
The technical solution of the invention is as follows:
a laser cleaning method for deoxidation is characterized by comprising the following steps:
step 1) setting parameters for an upper computer according to laser cleaning requirements;
step 2) the control unit divides the cleaning track graph into areas;
step 3) the control unit determines the change relation of the instantaneous power of the boundary area along with the X coordinate or the Y coordinate;
step 4), the upper computer sends out an instruction to enable the control unit to start the laser to start laser cleaning;
step 5), the control unit judges the corresponding area of the current cleaning position in real time and determines the current laser power;
and 6) the control unit configures the current laser power obtained in the step 5) to the laser in real time according to a communication protocol.
In the step 1, the parameters include a cleaning track, a graph length, a graph width, a preset power, a boundary power, an X boundary, a Y boundary and the like, and the upper computer sets the parameters through instructions.
In the step 2, the cleaning track graph is subjected to region division, specifically:
firstly, dividing a starting position and an ending position of a cleaning track graph in the horizontal direction into a region 1 and a region 3 respectively, wherein the width of the region is an X boundary;
then, dividing the initial position and the end position of the cleaning track graph in the vertical direction into an area 2 and an area 4 respectively, wherein the width of the area is a Y boundary;
finally, the middle area of the cleaning trace pattern is divided into areas 5.
And the area division is not to divide the area to be cleaned, but to divide the area of the set cleaning track graph. For example, the length and width of the pattern are set to 50mm and 3mm, and the step is to divide the rectangular area of 50mm by 3 mm. The image forming apparatus is divided into five regions, two sides in the X direction, two sides in the Y direction and a middle region. The widths of the two side regions of X, Y are the values of the parameters "X boundary" and "Y boundary", respectively.
Preferably, the X boundary and the Y boundary are set to be 0.05mm to 0.2 mm.
In step 3, determining a relationship between the instantaneous power P of the boundary region and the change of the X coordinate, specifically as follows:
x-negative region: let two coordinates (-L/2, Pbj), (-L/2+ Xbj, P0), then the instantaneous power P ═ ((P0-Pbj) × x/Xbj) + (L × (P0-Pbj)/(2 × Xbj)) + Pbj;
an X forward region: given two point coordinates (L/2, Pbj), (L/2-Xbj, P0), the instantaneous power P ═ ((Pbj-P0) × Xbj) + (L × (P0-Pbj)/(2 × Xbj)) + Pbj;
wherein, L is the graph length, P0 is the preset power, Pbj is the boundary power, Xbj is the X boundary;
determining the relation of the instantaneous power P of the boundary area along with the change of the Y coordinate, which is concretely as follows:
y negative direction region: let two coordinates (-W/2, Pbj), (-W/2+ Ybj, P0), then the instantaneous power P ═ ((P0-Pbj) × y/Ybj) + (W × (P0-Pbj)/(2 × Ybj)) + Pbj;
y forward region: let two-point coordinates (W/2, Pbj), (W/2-Ybj, P0), then the instantaneous power P ═ ((Pbj-P0) × y/Ybj) + (W × (P0-Pbj)/(2 × Ybj)) + Pbj;
where W is the pattern width, P0 is the default power, Pbj is the boundary power, Ybj is the Y boundary.
Preferably, the boundary power Pbj is 0% -50% of the preset power P0.
The step 5) judges the area corresponding to the current cleaning position (x, y) in real time, and determines the current laser power, specifically:
if the X coordinate is in the boundary area, the current instantaneous power P changes along with the X coordinate;
if the Y coordinate is in the boundary area, the current instantaneous power P changes along with the Y coordinate;
if neither the X nor Y coordinates are in the boundary region, the current instantaneous power P is the preset power P0.
Compared with the existing cleaning method, the invention has the following advantages:
1. according to the invention, through zone division, the power of the cleaning track boundary is gradually reduced, the temperature of the boundary can be ensured not to be overhigh, the oxidation of the cleaning zone can not be caused even if the residence time of the zone is overlong, the substrate is ensured not to be damaged, and the cleaning quality is improved.
2. No extra equipment or devices are needed, only parameter adjustment is needed, the operation is simple and convenient, and the device is suitable for different cleaning environments.
3. Because no oxidation area exists, excessive repeated cleaning is not needed, and the cleaning efficiency is improved.
4. The control cost of an automatic system can be reduced, a control method for avoiding oxidation or substrate damage at the starting time and the ending time of cleaning is not required to be considered, the control cost is saved, and the cleaning efficiency is improved.
In conclusion, the method can effectively realize deoxidation, improve the cleaning quality, avoid damaging the substrate, is simple and convenient to operate, can adapt to different cleaning environments, saves the automatic control cost and improves the cleaning efficiency. The method can be widely used in laser cleaning.
Drawings
FIG. 1 is a flow chart of the cleaning steps of the present invention
FIG. 2 is a schematic structural diagram of an embodiment of the present invention
FIG. 3 is a schematic diagram of the relationship between laser power and X coordinate according to an embodiment of the present invention
FIG. 4 is a graph comparing the cleaning results of the present invention and the prior art cleaning method
Detailed Description
The invention is further described below with reference to the accompanying drawings and examples. But should not be taken as limiting the scope of the invention.
The terms "preset power", "boundary power", "X boundary", "Y boundary", "middle area", etc. in the embodiments of the present invention are only used for simplifying the description for facilitating the understanding of the present invention, and do not indicate or imply that the structures, features, devices or elements referred to must have specific terms or positional relationships, and thus, should not be construed as limiting the present invention.
The laser cleaning device is a handheld cleaning machine, the cleaning object is rust on the surface of a steel plate, and the method comprises the following specific steps:
1) the upper computer sets parameters and sets the cleaning track as a spiral track. The length and width of the track are set to be 50mmX3mm, the preset power is 100W, the X boundary is set to be 0.1mm, the Y boundary is set to be 0.1mm, and the boundary power is set to be 0W;
2) the area division is performed according to the above parameters, as shown in fig. 2, for a total of 5 parts. The laser power of the areas 1 and 3 changes with the X coordinate, the laser power of the areas 2 and 4 changes with the Y coordinate, and the laser power of the area 5 is constant as a preset power;
3) taking the 1 region X boundary region as an example, the following are specific: according to two-point coordinates (-L/2, Pbj), (-L/2+ Xbj, P0), where L is the length of the pattern, P0 is the preset power, Pbj is the boundary power, Xbj is the X boundary, and as shown in fig. 3, two-point coordinates AB, namely (-25, 0) and (-24.9, 100), the instantaneous laser power P is ((P0-Pbj) × X/Xbj) + (L (P0-Pbj)/(2 × Xbj)) + Pbj is 1000 × X + 25000;
4) the upper computer sends a laser instruction to the control unit to carry out laser cleaning;
5) judging the area of the XY coordinates in real time, and calculating and changing the laser power in real time;
6) and sending the real-time power control signal to the laser to realize the real-time change of the laser power.
FIG. 4 is a comparison of the cleaning results of the prior art cleaning method and the present invention, and it can be seen that the cleaning results of the prior art cleaning method on the left side have obvious oxidation traces, poor cleaning effect and damaged substrate; the right side of the cleaning result of the method of the invention has no oxidation trace, the cleaning effect is uniform, and the substrate is not damaged.
In conclusion, the deoxidation cleaning method provided by the invention can effectively realize deoxidation, improve the cleaning quality, avoid substrate damage, is simple and convenient to operate, can adapt to different cleaning environments, saves the automatic control cost and improves the cleaning efficiency.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A laser cleaning method for deoxidation is characterized by comprising the following steps:
step 1) setting parameters for an upper computer according to laser cleaning requirements;
step 2) the control unit divides the cleaning track graph into areas, specifically:
firstly, dividing a starting position and an ending position of a cleaning track graph in the horizontal direction into a region 1 and a region 3 respectively, wherein the width of the region is an X boundary;
then, dividing the initial position and the end position of the cleaning track graph in the vertical direction into an area 2 and an area 4 respectively, wherein the width of the area is a Y boundary;
finally, dividing the middle area of the cleaning track graph into an area 5;
step 3), the control unit determines the relation of the change of the instantaneous power P of the boundary area along with the X coordinate, and the relation is as follows:
x-negative region: let two coordinates (-L/2, Pbj), (-L/2+ Xbj, P0), then the instantaneous power P ═ ((P0-Pbj) × x/Xbj) + (L × (P0-Pbj)/(2 × Xbj)) + Pbj;
an X forward region: given two point coordinates (L/2, Pbj), (L/2-Xbj, P0), the instantaneous power P ═ ((Pbj-P0) × Xbj) + (L × (P0-Pbj)/(2 × Xbj)) + Pbj;
wherein, L is the graph length, P0 is the preset power, Pbj is the boundary power, Xbj is the X boundary;
the control unit determines the relation of the change of the instantaneous power P of the boundary area along with the Y coordinate, and the concrete steps are as follows:
y negative direction region: let two coordinates (-W/2, Pbj), (-W/2+ Ybj, P0), then the instantaneous power P ═ ((P0-Pbj) × y/Ybj) + (W × (P0-Pbj)/(2 × Ybj)) + Pbj;
y forward region: let two-point coordinates (W/2, Pbj), (W/2-Ybj, P0), then the instantaneous power P ═ ((Pbj-P0) × y/Ybj) + (W × (P0-Pbj)/(2 × Ybj)) + Pbj;
wherein, W is the pattern width, P0 is the preset power, Pbj is the boundary power, Ybj is the Y boundary;
step 4), the upper computer sends out an instruction to enable the control unit to start the laser to start laser cleaning;
step 5), the control unit judges the corresponding area of the current cleaning position in real time and determines the current laser power, which specifically comprises the following steps:
if the X coordinate is in the boundary area, the current instantaneous power P changes along with the X coordinate;
if the Y coordinate is in the boundary area, the current instantaneous power P changes along with the Y coordinate;
if the X or Y coordinate is not in the boundary area, the current instantaneous power P is the preset power P0;
and 6) the control unit configures the current laser power obtained in the step 5) to the laser in real time according to a communication protocol.
2. The laser cleaning method for deoxidation according to claim 1, wherein in step 1, the parameters include cleaning track, pattern length, pattern width, preset power, boundary power, X-boundary, Y-boundary.
3. The laser cleaning method for deoxidation according to claim 1 wherein the X and Y boundaries are set to 0.05mm to 0.2 mm.
4. The laser cleaning method for deoxidation laser cleaning as claimed in claim 1 wherein the boundary power Pbj is between 0% and 50% of the predetermined power P0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110191224.5A CN112974411B (en) | 2021-02-20 | 2021-02-20 | Laser cleaning method for deoxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110191224.5A CN112974411B (en) | 2021-02-20 | 2021-02-20 | Laser cleaning method for deoxidation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112974411A CN112974411A (en) | 2021-06-18 |
| CN112974411B true CN112974411B (en) | 2022-08-09 |
Family
ID=76393645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110191224.5A Active CN112974411B (en) | 2021-02-20 | 2021-02-20 | Laser cleaning method for deoxidation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112974411B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107025651A (en) * | 2017-04-25 | 2017-08-08 | 苏州德威尔卡光电技术有限公司 | The determination method and device of laser cleaning energy |
| CN107695040A (en) * | 2017-10-20 | 2018-02-16 | 大族激光科技产业集团股份有限公司 | Laser cleaning system and method |
| CN111001940A (en) * | 2019-12-24 | 2020-04-14 | 武汉翔明激光科技有限公司 | Laser uniform cleaning method based on laser and galvanometer linkage control |
| CN111420938A (en) * | 2020-04-28 | 2020-07-17 | 株洲国创轨道科技有限公司 | Intelligent laser cleaning method and device for multiple laser heads |
| JP2020168795A (en) * | 2019-04-03 | 2020-10-15 | 住友ゴム工業株式会社 | Method for laser cleaning mold surface |
| CN111889457A (en) * | 2020-07-29 | 2020-11-06 | 武汉翔明激光科技有限公司 | Large-breadth automatic laser cleaning device and method |
-
2021
- 2021-02-20 CN CN202110191224.5A patent/CN112974411B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107025651A (en) * | 2017-04-25 | 2017-08-08 | 苏州德威尔卡光电技术有限公司 | The determination method and device of laser cleaning energy |
| CN107695040A (en) * | 2017-10-20 | 2018-02-16 | 大族激光科技产业集团股份有限公司 | Laser cleaning system and method |
| JP2020168795A (en) * | 2019-04-03 | 2020-10-15 | 住友ゴム工業株式会社 | Method for laser cleaning mold surface |
| CN111001940A (en) * | 2019-12-24 | 2020-04-14 | 武汉翔明激光科技有限公司 | Laser uniform cleaning method based on laser and galvanometer linkage control |
| CN111420938A (en) * | 2020-04-28 | 2020-07-17 | 株洲国创轨道科技有限公司 | Intelligent laser cleaning method and device for multiple laser heads |
| CN111889457A (en) * | 2020-07-29 | 2020-11-06 | 武汉翔明激光科技有限公司 | Large-breadth automatic laser cleaning device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112974411A (en) | 2021-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20080196237A1 (en) | Method and apparatus for manufacturing honeycomb compact-body molding die | |
| WO2013146166A1 (en) | Plasma cutting method and plasma cutting device | |
| US9085037B2 (en) | Wire electrical discharge machine and wire electrical discharge method for reducing machining damage during cutting machining and escape machining | |
| JP4215296B2 (en) | Laser cutting machine and method for laser cutting | |
| CN112974411B (en) | Laser cleaning method for deoxidation | |
| EP0064352B1 (en) | A beam-machine method and apparatus and a product made thereby | |
| CN116406321A (en) | Method and machine for cutting and removing a workpiece part from a plate-shaped material | |
| JPS58109230A (en) | Wire cut electric spark machining device | |
| KR20030044760A (en) | Method of and apparatus for wire electric-discharge machining | |
| CN1160604C (en) | Position control equipment | |
| US5091625A (en) | Plasma arc cutting device having metal deposition removal function and method for removing deposition from nozzle of the plasma arc cutting device | |
| CN214134482U (en) | Three-dimensional laser equipment capable of effectively and better ensuring plating performance on LAP | |
| JPH05154717A (en) | Wire electric discharge machining method and device thereof | |
| JPWO2003045614A1 (en) | Wire electrical discharge machine | |
| CN109434244B (en) | Double-wire welding method and system | |
| CN111647728A (en) | Profiling moving high-frequency machine for chain saw guide plate and high-frequency quenching method | |
| TW201431633A (en) | Laser processing device, machining control device and pulse frequency control method | |
| CN111347164B (en) | Zirconia ceramic surface laser marking method and laser device | |
| JP3818257B2 (en) | Wire electrical discharge machine | |
| CN113732309A (en) | Additive manufacturing method capable of simultaneously improving forming precision and forming efficiency | |
| JPS61232085A (en) | Method and apparatus for laser beam cutting | |
| US20210146502A1 (en) | In-situ spark erosion dressing system and method thereof | |
| CN212704939U (en) | Workpiece surface machining system based on plasma air gouging | |
| JP2014188558A (en) | Cutting method and cutting device | |
| CN215698616U (en) | Discharge power supply and motion control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231129 Address after: Room 146, Building 6, Chuangzhi Green Valley Development Center, No. 788 Hongpu Road, Shangcheng District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Xianheng Electrical Technology (Hangzhou) Co.,Ltd. Address before: 201800 room 1102, 811 Pingcheng Road, Juyuan New District, Jiading District, Shanghai Patentee before: ZHONGKE GUANGHUI (SHANGHAI) TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |