CN108581234A - A kind of aluminium alloy impulse- free robustness laser cutting method and ancillary equipment - Google Patents
A kind of aluminium alloy impulse- free robustness laser cutting method and ancillary equipment Download PDFInfo
- Publication number
- CN108581234A CN108581234A CN201810734556.1A CN201810734556A CN108581234A CN 108581234 A CN108581234 A CN 108581234A CN 201810734556 A CN201810734556 A CN 201810734556A CN 108581234 A CN108581234 A CN 108581234A
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- China
- Prior art keywords
- supply air
- air line
- laser cutting
- gas
- aluminium alloy
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Classifications
-
- 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
- B23K26/38—Removing material by boring or cutting
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
- B23K35/383—Selection of media, e.g. special atmospheres for surrounding the working area mainly containing noble gases or nitrogen
Abstract
The present invention relates to laser cutting technique field, a kind of aluminium alloy impulse- free robustness laser cutting method is disclosed with ancillary equipment.The aluminium alloy impulse- free robustness laser cutting method of the present invention sprays auxiliary gas, auxiliary gas includes the oxygen that concentration range is 0.05%~0.2% after laser cutting aluminum alloy plate materials generate fusant to aluminum alloy plate materials.The ancillary equipment of the present invention includes the first supply air line, the second supply air line and outlet pipe, first supply air line is for providing oxygen or air, second supply air line for providing nitrogen, first supply air line, the second supply air line outlet side be connected to the inlet end of the outlet pipe.The alloy product surface impulse- free robustness of the aluminium alloy impulse- free robustness laser cutting method cutting of the present invention, the aluminium alloy Quality of Laser Cutting significantly increased, for generating above-mentioned auxiliary gas, the impulse- free robustness for aluminium alloy is cut by laser ancillary equipment of the invention.
Description
Technical field
The present invention relates to metal laser cutting technique fields, impulse- free robustness laser cutting method more particularly, to aluminium alloy and
Ancillary equipment.
Background technology
Laser cutting is that laser beam is gathered into the photoelectricity of very little to project metal surface by focus lamp, and focal point reaches
Very high power density, at this moment the illuminated position of material be heated to vapourizing temperature quickly, evaporation forms hole, with light beam and material
Opposite linear moves, and so that hole is formed continuously the joint-cutting of narrower in width, to achieve the purpose that cutting material.
When laser cut metal, aluminium alloy, stainless steel, titanium alloy etc. are especially cut, it can be under the end face of Metal Cutting
Portion leaves slag, and dross is commonly called as in industry, and dross can influence the quality of product, in the prior art, in order to remove dross, need by
Product after cutting carries out secondary operation polishing, causes the process-cycle of product long, of high cost.
Therefore, it is particularly significant for the development for being cut by laser field to design a kind of laser impulse- free robustness cutting method.
Invention content
The application is intended to solve one of the problems in the relevant technologies at least to a certain extent.For this purpose, one of the application
Purpose is, proposes that a kind of product that can solve aluminium alloy laser cutting molding has the technical issues of burr.
In the one side of the application, present applicant proposes a kind of aluminium alloy impulse- free robustness laser cutting methods, are cut in laser
After cutting aluminum alloy plate materials generation fusant, auxiliary gas is sprayed to aluminum alloy plate materials, auxiliary gas includes that concentration range is
0.05%~0.2% oxygen.
As a further improvement of the above technical scheme, the auxiliary gas is mixed by oxygen and nitrogen, oxygen
Concentration range is 0.05%~0.2%, and the concentration range of nitrogen is 99.95%~99.8%.
As a further improvement of the above technical scheme, the auxiliary gas is mixed by nitrogen and air, mixing
The concentration range of oxygen is 0.05%~0.2% afterwards.
As a further improvement of the above technical scheme, the laser is CO2Laser, optical-fiber laser or direct semiconductor
Laser.
In the another aspect of the application, the application also proposes a kind of for generating above-mentioned aluminium alloy impulse- free robustness laser cutting
The ancillary equipment of auxiliary gas in method, including the first supply air line, the second supply air line and outlet pipe, described first
Supply air line is for providing oxygen or air, and second supply air line is for providing nitrogen, first supply air line, second
The outlet side of supply air line is connected to the inlet end of the outlet pipe.
As a further improvement of the above technical scheme, further include gas mixing pipe road and gas reservoir, the gas mixing pipe
The inlet end on road is connected to the outlet side of first supply air line, the second supply air line respectively by the first triple valve, described
The outlet side on gas mixing pipe road is connected to the gas reservoir, and the outlet pipe is connected to the gas reservoir, and described
Outlet pipe is equipped with the first check valve for controlling the outlet pipe break-make.
As a further improvement of the above technical scheme, further include balanced valve, first supply air line, the second air supply pipe
Gas flow equalization in road is parallel with pressure reducing valve through the balanced valve on second supply air line, the pressure reducing valve passes through tune
The pressure of second supply air line is saved, and then control first supply air line, the second supply air line enter the balanced valve
The ratio of interior gas.
As a further improvement of the above technical scheme, first supply air line is equipped with supplies for detecting described first
The first flowmeter of gas flow in air pipe, second supply air line are equipped with for detecting in second supply air line
The second flowmeter of gas flow, the pressure reducing valve are connected with PI controllers, the PI controllers and the first flowmeter, the
Two flowmeters are electrically connected.
As a further improvement of the above technical scheme, first supply air line is equipped with first filter, and described the
Two supply air lines are equipped with the second filter.
As a further improvement of the above technical scheme, further include short-circuit pipeline, described short circuit pipeline one end passes through second
Triple valve is connected to second supply air line, and the other end is connected to the outlet pipe, and the short circuit pipeline is equipped with flow direction
The second check valve of the outlet pipe is directed toward from second supply air line.
The beneficial effects of the invention are as follows：
The aluminium alloy impulse- free robustness laser cutting method of the present invention is used for the aluminum alloy plate materials that plate thickness is 1mm~8mm
The mixed gas of oxygen and nitrogen or air as auxiliary gas, cut the burr dross height of the alloy product of aftershaping from
2.2mm is reduced to 0.03mm, this thickness is in industry considered no slag dross, to realize the nothing of laser cut metal
Burr is cut, and is improved the cut quality of metal, is saved secondary polishing operation and significantly reduce processing cost.
The ancillary equipment of the present invention is generated for generating the auxiliary gas in the aluminium alloy impulse- free robustness laser cutting method
Auxiliary gas be used for aluminum alloy plate materials laser cutting, can reach impulse- free robustness laser cutting, improve aluminum alloy plate materials
Quality of Laser Cutting and efficiency.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 be aluminium alloy laser cutting when burr thickness with the oxygen concentration in each gas variation diagram；
Fig. 2 is the effect of conventional laser cutting method and the alloy product of the impulse- free robustness laser cutting method cutting of the present invention
Fruit comparison diagram；
Fig. 3 is the principle assumption diagram of ancillary equipment one embodiment of the present invention.
Specific implementation mode
The technique effect of the design of the present invention, concrete structure and generation is carried out below with reference to embodiment and attached drawing clear
Chu, complete description, to be completely understood by the purpose of the present invention, scheme and effect.It should be noted that the case where not conflicting
Under, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that unless otherwise specified, when a certain feature is referred to as " fixing ", " connection " is in another feature,
It can directly fix, be connected in another feature, can also fix, be connected in another feature indirectly.In addition, this
The descriptions such as the up, down, left, right, before and after used in invention be only relative in attached drawing each component part of the present invention it is mutual
For position relationship.
In addition, unless otherwise defined, the technology of all of technologies and scientific terms used here by the article and the art
The normally understood meaning of personnel is identical.Term used in the description is intended merely to description specific embodiment herein, without
It is to limit the present invention.Term " and or " used herein includes the arbitrary of one or more relevant Listed Items
Combination.
The present invention is directed to propose a kind of metal impulse- free robustness laser cutting method, to improve metal laser cut quality, for this purpose,
The present invention is studied for aluminum alloy plate materials, it is proposed that a kind of aluminium alloy laser impulse- free robustness laser cutting method, it should be pointed out that,
The cutting that the simple laser cutting method by the present invention carries out the metals such as stainless steel, brass also should be in the scope of the present invention
It is interior.
The aluminium alloy laser impulse- free robustness laser cutting method of the present invention is illustrated in detail below, in the present invention, aluminium closes
The thickness of golden plate material is 1mm~8mm.
Aluminum alloy plate materials are cut using laser first, after aluminum alloy plate materials generate fusant, to aluminium alloy
Plank injection auxiliary gas, until the noresidue of aluminium alloy lower surface.
In one embodiment of the invention, auxiliary gas includes oxygen and nitrogen, by the way that oxygen and nitrogen are mixed, and
A concentration of the 0.05%~0.2% of adjusting oxygen, a concentration of the 99.95%~99.8% of corresponding nitrogen.
In another embodiment of the present invention, auxiliary gas includes air and nitrogen, by the way that air and nitrogen are mixed,
By adjusting the ratio of air and nitrogen, it is 0.05%~0.2% to make the concentration range of the oxygen in auxiliary gas.
Referring to Fig.1, the variation diagram of the burr thickness of aluminum alloy plate materials lower surface with the oxygen concentration of each gas is shown, with
Oxygen concentration in auxiliary gas to gradually increase, the dross thickness (burr thickness) of aluminum alloy plate materials lower surface 0~
Be reduced rapidly in the range of 0.05%, then 0.05%~0.2% range kept stable, when assisting in gas
After oxygen concentration is more than 0.2%, the dross thickness of generation starts to gradually increase again, wherein oxygen concentration for 0.05%~
In 0.2% range, dross thickness is about 0.03mm, and when traditional nitrogen being used to be cut by laser as auxiliary gas, production
Raw dross thickness is 2.2mm, and the dross thickness generated when traditional air being used to be cut by laser is 0.8mm, it is seen then that adopts
The laser cutting of aluminum alloy plate materials is carried out with the aluminum alloy plate materials impulse- free robustness laser cutting method of the present invention, the burr of aluminium alloy is hung
Slag height is significantly reduced to 0.03mm (no slag dross is thought in industry) from 2.2mm, can significantly increase aluminum alloy plate materials
Quality of Laser Cutting, to industry development have very great meaning.
Please with reference to Fig. 2, Fig. 2 shows the aluminium alloy impulse- free robustness laser cuttings of conventional laser cutting method and the present invention
The alloy product comparison diagram of forwarding method cutting, wherein A indicate the aluminium alloy impulse- free robustness laser cutting forwarding method cutting of the present invention
Alloy product, B indicates the alloy product of conventional laser cutting method cutting, figure it is seen that being swashed using traditional
The alloy product of light cutting method cutting, lower surface will produce apparent burr, and aluminium alloy laser using the present invention
The alloy product of cutting method cutting, the lower surface of aluminium alloy is substantially smooth, smooth, is cut compared to conventional laser cutting method
Alloy product, cut quality is greatly improved.
In the present embodiment, laser CO2Laser, optical-fiber laser or direct semiconductor laser.
The present invention also provides a kind of ancillary equipments generating above-mentioned auxiliary gas, as shown in Figure 3 comprising the first gas supply
Pipeline 1, the second supply air line 2, outlet pipe 3, the first supply air line 1 are used to provide the oxygen or air needed for auxiliary gas,
Second supply air line 2 be used for provides auxiliary gas needed for nitrogen, the first supply air line 1, the second supply air line 2 outlet side and
The inlet end of outlet pipe is connected to by the first triple valve 10, the gas in the first supply air line 1, the second supply air line 2 according to
Certain ratio flows to the first triple valve 10, after being mixed into above-mentioned auxiliary gas, is flowed out by outlet pipe 3.
In the present embodiment, gas mixing pipe road is additionally provided between outlet pipe 3 and the first supply air line 1, the second supply air line 2
4 and gas reservoir 5, the inlet end on gas mixing pipe road 4 pass through the first triple valve 10 and the first supply air line 1, the second air supply pipe
Road 2 is connected to, and the outlet side on gas mixing pipe road 4 is connected to gas reservoir 5, and the inlet end of outlet pipe 3 connects with gas reservoir 5
Logical, outlet pipe 3 is equipped with the first check valve 30 that flow direction is directed toward the outlet side of outlet pipe 3, the first supply air line 1, second
Gas in supply air line 2 is flowed by the first triple valve 10 in gas mixing pipe road 4 respectively to be mixed, and then inflow gas stores
It is stored in device 5, when the first check valve 30 is opened, the auxiliary gas in gas reservoir 5 is flowed out by outlet pipe 3.
Preferably, gas reservoir 5 is surge tank.
In the present embodiment, the first supply air line 1, the second supply air line 2 are also associated with 6 first supply air line 1 of balanced valve,
Gas in two supply air lines 2 first flows into balanced valve 6, after the stabilization of balanced valve 6, is flowing to gas mixing pipe road 4, this hair
In bright, it is 0.05%~0.2% to assist the oxygen concentration range in gas, so the first supply air line 1, the second supply air line 2
The gas flow of offer differs greatly, by balanced valve 6 can adjust the first supply air line 1,2 both sides of the second supply air line pressure
Power reaches balance, and the flow in the first supply air line 1, the second supply air line 2 reaches balance, and then the first supply air line 1, second
Supply air line 2, which can be provided steadily, generates the above-mentioned required flow proportional of auxiliary gas.
Preferably, it is additionally provided with solenoid valve 40 on gas mixing pipe road 4, for controlling between gas mixing pipe road 4 and gas reservoir 5
Break-make.
Preferably, the second supply air line 2 is also parallel with the first pressure reducing valve 20, and the first pressure reducing valve 20 is by adjusting the second gas supply
The pressure of pipeline 2, and then adjust the gas flow ratio in the first supply air line 1, the second supply air line 2.In the present embodiment, the
One supply air line 1 is equipped with first flowmeter 11, and the second supply air line 2 is equipped with second flowmeter 21, on the first pressure reducing valve 20
Equipped with PI controllers 22, PI controllers 22 are electrically connected with first flowmeter 11, second flowmeter 21, to by detecting
Flow value is adjusted, and the flow between the first supply air line 1, the second supply air line 2 is made to reach required ratio.
It is additionally provided with the first filter 12 for carrying out gas filtration on first supply air line 1, is additionally provided on the second supply air line 2
Carry out the second filter 23 of gas filtration.
In the present embodiment, be additionally provided with short-circuit pipeline 7 between the second supply air line 2 and outlet pipe 3, short-circuit pipeline 7 into
Gas end is connected to by the second triple valve 24 with the second supply air line 2, and the outlet side of short-circuit pipeline 7 is connected to outlet pipe 3, and the
Two triple valves 24 close to the second supply air line 2 air inlet end position be arranged, short-circuit pipeline 7 be equipped with the second check valve 70, second
The flowing control direction of check valve 70 is to be directed toward outlet pipe 3 from the second supply air line 2.
Preferably, the third one-way valve 13 for ensuring gas flow, the second supply air line 2 are additionally provided on the first supply air line 1
On be additionally provided with the 4th check valve 25 for ensuring gas flow.
In the present embodiment, gas reservoir 5 is also associated with blowoff line 8, for the spot in gas reservoir 5 to be discharged.
In the present embodiment, gas reservoir 5 is also associated with sampling analysis pipeline 9, and sampling analysis pipeline 9 is used to store up gas
Auxiliary gas in storage 5 is sampled analysis, to ensure the concentration of oxygen in the auxiliary gas in gas reservoir 5.
It is illustrating for progress to be implemented to the preferable of the present invention, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations or be replaced under the premise of without prejudice to spirit of that invention
It changes, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (10)
1. a kind of aluminium alloy impulse- free robustness laser cutting method, which is characterized in that generate melting in laser cutting aluminum alloy plate materials
After object, auxiliary gas is sprayed to aluminum alloy plate materials, auxiliary gas includes the oxygen that concentration range is 0.05%~0.2%.
2. aluminium alloy impulse- free robustness laser cutting method according to claim 1, which is characterized in that the auxiliary gas passes through
Oxygen and nitrogen mix, and oxygen concentration range is 0.05%~0.2%, and the concentration range of nitrogen is 99.95%~
99.8%.
3. aluminium alloy impulse- free robustness laser cutting method according to claim 1, which is characterized in that the auxiliary gas passes through
Nitrogen and air mix, and the concentration range of oxygen is 0.05%~0.2% after mixing.
4. aluminium alloy impulse- free robustness laser cutting method according to claim 1, which is characterized in that the laser is CO2Swash
Light, optical-fiber laser or direct semiconductor laser.
5. a kind of ancillary equipment, for generating the aluminium alloy impulse- free robustness laser cutting side as described in any one of claim 1-4
Auxiliary gas in method, which is characterized in that including the first supply air line, the second supply air line and outlet pipe, described first
Supply air line is for providing oxygen or air, and second supply air line is for providing nitrogen, first supply air line, second
The outlet side of supply air line is connected to the inlet end of the outlet pipe.
6. ancillary equipment according to claim 5, which is characterized in that further include gas mixing pipe road and gas reservoir, institute
The inlet end for stating gas mixing pipe road is connected with the outlet side of first supply air line, the second supply air line respectively by the first triple valve
Logical, the outlet side on the gas mixing pipe road is connected to the gas reservoir, and the outlet pipe is connected to the gas reservoir,
And the outlet pipe is equipped with the first check valve for controlling the outlet pipe break-make.
7. ancillary equipment according to claim 5 or 6, which is characterized in that further include balanced valve, first air supply pipe
Gas flow equalization in road, the second supply air line is parallel with pressure reducing valve through the balanced valve on second supply air line, described
Pressure reducing valve by adjusting the pressure of second supply air line, and then control first supply air line, the second supply air line into
Enter the ratio of the gas in the balanced valve.
8. ancillary equipment according to claim 7, which is characterized in that first supply air line is equipped with for detecting
The first flowmeter of gas flow in the first supply air line is stated, second supply air line is equipped with to be supplied for detecting described second
The second flowmeter of gas flow in air pipe, the pressure reducing valve are connected with PI controllers, the PI controllers and described first
Flowmeter, second flowmeter are electrically connected.
9. ancillary equipment according to claim 7, which is characterized in that first supply air line is equipped with the first filtering
Device, second supply air line are equipped with the second filter.
10. according to the ancillary equipment described in claim 5,6,8 or 9, which is characterized in that further include short-circuit pipeline, the short circuit
Pipeline one end is connected to by the second triple valve with second supply air line, and the other end is connected to the outlet pipe, described short
Road pipeline is equipped with the second check valve that flow direction is directed toward the outlet pipe from second supply air line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810734556.1A CN108581234A (en) | 2018-07-06 | 2018-07-06 | A kind of aluminium alloy impulse- free robustness laser cutting method and ancillary equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810734556.1A CN108581234A (en) | 2018-07-06 | 2018-07-06 | A kind of aluminium alloy impulse- free robustness laser cutting method and ancillary equipment |
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| Publication Number | Publication Date |
|---|---|
| CN108581234A true CN108581234A (en) | 2018-09-28 |
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ID=63617601
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810734556.1A Pending CN108581234A (en) | 2018-07-06 | 2018-07-06 | A kind of aluminium alloy impulse- free robustness laser cutting method and ancillary equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871593A (en) * | 2022-06-16 | 2022-08-09 | 西北工业大学太仓长三角研究院 | Thick plate myriawatt-level optical fiber laser double-component gas-assisted cutting method |
| CN114871546A (en) * | 2022-07-11 | 2022-08-09 | 南通市立新机械制造有限公司 | Stainless steel material cutting quality optimization method based on plasma cutting machine tool |
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| JPH0199790A (en) * | 1987-10-12 | 1989-04-18 | Mitsubishi Electric Corp | Laser beam cutting method for material easy to stick dross |
| JP2006346737A (en) * | 2005-06-20 | 2006-12-28 | Mitsubishi Electric Corp | Laser beam machine and laser beam machining method |
| CN205817107U (en) * | 2016-06-30 | 2016-12-21 | 郑州江东汽车零部件有限公司 | Laser cutting machine auxiliary gas supply device |
| CN107150169A (en) * | 2016-03-02 | 2017-09-12 | 大族激光科技产业集团股份有限公司 | A kind of impulse- free robustness cutting method of aluminium alloy |
| CN107875874A (en) * | 2017-12-15 | 2018-04-06 | 天津市益斯达燃气设备有限公司 | A kind of follow-up flow air mixing equipment for being used to substitute compressed air |
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2018
- 2018-07-06 CN CN201810734556.1A patent/CN108581234A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0199790A (en) * | 1987-10-12 | 1989-04-18 | Mitsubishi Electric Corp | Laser beam cutting method for material easy to stick dross |
| JP2006346737A (en) * | 2005-06-20 | 2006-12-28 | Mitsubishi Electric Corp | Laser beam machine and laser beam machining method |
| CN107150169A (en) * | 2016-03-02 | 2017-09-12 | 大族激光科技产业集团股份有限公司 | A kind of impulse- free robustness cutting method of aluminium alloy |
| CN205817107U (en) * | 2016-06-30 | 2016-12-21 | 郑州江东汽车零部件有限公司 | Laser cutting machine auxiliary gas supply device |
| CN107875874A (en) * | 2017-12-15 | 2018-04-06 | 天津市益斯达燃气设备有限公司 | A kind of follow-up flow air mixing equipment for being used to substitute compressed air |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114871593A (en) * | 2022-06-16 | 2022-08-09 | 西北工业大学太仓长三角研究院 | Thick plate myriawatt-level optical fiber laser double-component gas-assisted cutting method |
| CN114871546A (en) * | 2022-07-11 | 2022-08-09 | 南通市立新机械制造有限公司 | Stainless steel material cutting quality optimization method based on plasma cutting machine tool |
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Application publication date: 20180928 |