CN107150169A - A kind of impulse- free robustness cutting method of aluminium alloy - Google Patents
A kind of impulse- free robustness cutting method of aluminium alloy Download PDFInfo
- Publication number
- CN107150169A CN107150169A CN201610117796.8A CN201610117796A CN107150169A CN 107150169 A CN107150169 A CN 107150169A CN 201610117796 A CN201610117796 A CN 201610117796A CN 107150169 A CN107150169 A CN 107150169A
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- Prior art keywords
- aluminium alloy
- impulse
- gas
- laser
- free robustness
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a kind of impulse- free robustness cutting method of aluminium alloy, the impulse- free robustness cutting method of the aluminium alloy includes laser cutting aluminum alloy plate materials and produced after fused mass, the aluminium alloy and aluminum oxide that laser energy melts away is set to reach balance using auxiliary gas injection aluminum alloy plate materials, it is described to aid in gas to be formed by nitrogen and oxygen mix；It is described auxiliary gas composition ratio be：Oxygen concentration range：0.2%~2.5%；Nitrogen gas concn scope：97.5%~99.8%.This method is by aiding in the injection of gas, and laser is realized that impulse- free robustness is cut, more than 6mm aluminum alloy plate materials cut, dross amount demultiplication substantially to 1mm to 6mm thickness aluminum alloy plate materials.
Description
Technical field
The present invention relates to the impulse- free robustness cutting method in Laser cutting field, more particularly to a kind of aluminium alloy.
Background technology
With global equipment manufacturing industrial upgrading, laser fabrication technology and laser processing technology step into fast development
Automobile, ship, machinery, household, aviation etc. field have been covered in track, laser technology application.Aluminium
Alloy is as universal industrial materials, and its density is low, and intensity is higher, and hardness is big, but plasticity is poor, tradition
Mode is cut, milling, punching processing aluminium alloy, easily cause secondary injury to workpiece, and apply laser cutting aluminium alloy
There is its unique advantage.Due to the physical characteristic of aluminium, plasticity is not high, poor fluidity after melting, with cutter plus
Man-hour knife easy to stick, lower surface easily produces burr, Laser Processing aluminium alloy technique at this stage, and cutting aluminium is closed
Lower surface jagged can also be remained after gold, for product appearance is reached requirement, it is necessary to manually scrape burr or
Professional deburring device processing, can produce qualified product.How the impulse- free robustness cutting of aluminium alloy is realized,
How to ensure to cut alloy product quality, how production efficiency is improved, without secondary operation, for laser
Cutting processing technology, is a problem for needing to be captured, and is also the guiding of the market demand.
The impulse- free robustness incision principle of aluminium alloy:The fusing point of aluminium is about at 650 DEG C, and aluminium aoxidizes two with oxygen formation three
Aluminium, and this oxide ester mp is higher, about 2050 DEG C, considerably beyond aluminium and the fusing point of aluminium alloy.Cut in laser
When cutting middle use nitrogen, air secondary process, burr and the auxiliary gas of aluminum alloy plate materials lower surface remaining have pole
Important Relations, the aluminium alloy of more than 2mm thickness is processed using nitrogen as auxiliary gas, and burr can not be removed,
The sticky strong, poor fluidity of the aluminium alloy of melting, burr residual lower surface can not be removed.
When using air as auxiliary gas cutting below 3mm aluminium alloy, adjustment cutting condition can make following table
Face impulse- free robustness, Stimulated Light energy affect when cutting more than 3mm aluminium alloy, the fused mass of cutting generation becomes many,
Cutting condition is adjusted, lower surface impulse- free robustness also is difficult to realize.
The content of the invention
In order to overcome all deficiencies of existing Related product, the present invention proposes that a kind of impulse- free robustness of aluminium alloy is cut
Segmentation method, this method can realize that impulse- free robustness is cut substantially to 1mm to 6mm thickness aluminum alloy plate materials.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of impulse- free robustness cutting method of aluminium alloy provided by the present invention, including：Laser cuts aluminium alloy
Sheet material is produced after fused mass, makes the aluminium alloy that laser energy is melted away using auxiliary gas injection aluminum alloy plate materials
Balance is reached with aluminum oxide, the auxiliary gas is formed by nitrogen and oxygen mix.
As a further improvement on the present invention, the composition ratio of the auxiliary gas is：Oxygen concentration range：
0.2%~2.5%；Nitrogen gas concn scope：97.5%~99.8%.
As a further improvement on the present invention, the assisted gas storage is opened in high pressure gas holder when using
Nozzle is sprayed using high pressure.
As a further improvement on the present invention, the laser includes optical-fiber laser, CO2 laser and directly half
Conductor Laser laser.
Compared with prior art, the invention has the advantages that：
By aiding in the injection of gas, laser is to 1mm to 6mm thickness aluminum alloy plate materials, substantially in fact
More than 6mm aluminum alloy plate materials are cut, dross amount demultiplication by existing impulse- free robustness cutting.
Brief description of the drawings
Fig. 1 is present invention auxiliary each long curve map of concentration slag of gas；
Fig. 2 is present invention auxiliary each concentration cutting effect figure of gas；
Fig. 3 is the different auxiliary gas cutting effect figures of the present invention.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.
Presently preferred embodiments of the present invention is given in accompanying drawing.But, the present invention can come real in many different forms
It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to this
The understanding of the disclosure of invention is more thorough comprehensive.
Unless otherwise defined, technology of all of technologies and scientific terms used here by the article with belonging to the present invention
The implication that the technical staff in field is generally understood that is identical.Art used in the description of the invention herein
Language is intended merely to describe the purpose of specific embodiment, it is not intended that in the limitation present invention.
The assisted gas storage is in high pressure gas holder, and laser is cut to aluminum alloy plate materials first, treats
Fused mass is occurred in that during plate cutting, the high pressure gas holder of storage auxiliary gas, the nozzle profit of gas tank is opened
With high pressure gas will be aided in spray to the cut places of aluminum alloy plate materials, produced by ejecting auxiliary gas by nozzle
Air pressure, in laser cutting process fused mass all remove, to aluminium alloy lower surface noresidue.Melting
Aluminium alloy viscosity is strong, poor fluidity, if without aiding in gas, treating that fused mass cooling can be under jagged residual
Surface can not be removed；During using air or pure nitrogen gas as auxiliary gas, auxiliary gas can be with molten condition
Aluminium occurs chemical reaction and produces dystectic compound, and burr can be produced after the completion of cutting.
By analyzing the phenomenon of air auxiliary cutting, cutting condition is adjusted, in embodiments of the present invention, is made
With oxygen concentration it is 0.2% and nitrogen gas concn 99.8% or oxygen concentration are 2.5% and nitrogen gas concn 97.5%
Mixed gas is as auxiliary gas, and aluminium alloy and aluminum oxide that laser energy is melted away etc. reach balance, cut
After the completion of the micro burr that remains can be ignored for sheet material, it is believed that realize aluminium alloy
Impulse- free robustness is cut.
Found by producing, using oxygen concentration be 1% and the mixed gas of nitrogen gas concn 99% is used as auxiliary gas
During body, the impulse- free robustness cutting of aluminium alloy can also be realized, i.e., the concentration range of auxiliary gas of the present invention is：
Oxygen concentration range：0.2%~2.5%, nitrogen gas concn scope：97.5%~99.8%, in this concentration range
Oxygen and nitrogen mixed gas can realize that the impulse- free robustness of aluminium alloy is cut as auxiliary gas.
The laser used that is cut by laser includes optical-fiber laser, CO2 laser and direct semiconductor laser etc.
Polytype laser.
Following examples are realized under conditions of aluminum alloy plate materials thickness is 4mm.
As shown in fig.1, the figure is present invention auxiliary each long curve map of concentration slag of gas.As shown in Figure 1,
When oxygen concentration is that 0 (i.e. A points) only has nitrogen in auxiliary gas, slag length is maximum；When oxygen in auxiliary gas
When concentration range is 0.2%~2.5% and nitrogen gas concn scope is 97.5%~99.8%, slag length is minimum；Work as auxiliary
When gas is air (i.e. B points), oxygen concentration is more than 2.5%, and slag length is again elongated.Cut by analyzing air
The phenomenon cut, using oxygen concentration range be 0.2%~2.5% and nitrogen gas concn scope is 97.5%~99.8% mixed
The auxiliary gas auxiliary cutting closed can effectively remove slag, and realize the impulse- free robustness cutting of aluminium alloy.
As shown in fig.2, the figure is present invention auxiliary each concentration cutting effect figure of gas.As shown in Figure 2,
When the oxygen of the auxiliary gas is different with nitrogen ratios, cutting effect is also slightly different, and is regarded in cutting process
Concrete condition can select the auxiliary gas of various concentrations to make cutting effect optimal.
As shown in fig.3, the figure is different auxiliary gas cutting effect figures of the invention.Can be obvious by the figure
See, when aiding in cutting using the auxiliary gas of the present invention, can effectively remove the gred, reduce the generation of burr,
Than having more preferably effect using nitrogen and air as auxiliary gas.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-mentioned reality of the invention
Apply the limitation of example, the change made under other any Spirit Essences and principle without departing from the present invention, modification,
Substitute, combine, simplify, should be equivalent substitute mode, be included within protection scope of the present invention.
Claims (4)
1. a kind of impulse- free robustness cutting method of aluminium alloy, it is characterised in that including：
Laser cutting aluminum alloy plate materials are produced after fused mass, make to swash using auxiliary gas injection aluminum alloy plate materials
The aluminium alloy and aluminum oxide that light energy is melted away reach balance, and the auxiliary gas is by nitrogen and oxygen mix
Into.
2. the impulse- free robustness cutting method of aluminium alloy as claimed in claim 1, it is characterised in that：The auxiliary
The composition ratio of gas is：Oxygen concentration range：0.2%~2.5%；Nitrogen gas concn scope：97.5%~99.8%.
3. the impulse- free robustness cutting method of aluminium alloy as claimed in claim 2, it is characterised in that：The auxiliary
Gas is stored in high pressure gas holder, and nozzle is opened when using and is sprayed using high pressure.
4. the impulse- free robustness cutting method of aluminium alloy as claimed in claim 1, it is characterised in that：The laser
Device includes optical-fiber laser, CO2 laser and direct semiconductor laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117796.8A CN107150169A (en) | 2016-03-02 | 2016-03-02 | A kind of impulse- free robustness cutting method of aluminium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117796.8A CN107150169A (en) | 2016-03-02 | 2016-03-02 | A kind of impulse- free robustness cutting method of aluminium alloy |
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| Publication Number | Publication Date |
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| CN107150169A true CN107150169A (en) | 2017-09-12 |
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| CN201610117796.8A Pending CN107150169A (en) | 2016-03-02 | 2016-03-02 | A kind of impulse- free robustness cutting method of aluminium alloy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581234A (en) * | 2018-07-06 | 2018-09-28 | 励科科技（深圳）有限公司 | A kind of aluminium alloy impulse- free robustness laser cutting method and ancillary equipment |
| US12059747B1 (en) | 2020-10-29 | 2024-08-13 | Gregory Lee Burns | Laser cutter with assist gas mixer and method of mixing assist gases |
Citations (6)
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|---|---|---|---|---|
| JPS642793A (en) * | 1987-06-23 | 1989-01-06 | Mitsubishi Electric Corp | Laser beam cutting method for al |
| JPH0199790A (en) * | 1987-10-12 | 1989-04-18 | Mitsubishi Electric Corp | Laser beam cutting method for material easy to stick dross |
| JPH05228664A (en) * | 1992-02-05 | 1993-09-07 | Showa Alum Corp | Laser cutting method for aluminum material |
| CN1129416A (en) * | 1994-06-06 | 1996-08-21 | 阿曼德有限公司 | Method and apparatus for supplying gaseous nitrogen to a laser beam machine |
| JP2006346737A (en) * | 2005-06-20 | 2006-12-28 | Mitsubishi Electric Corp | Laser beam machine and laser beam machining method |
| US20150273387A1 (en) * | 2012-10-26 | 2015-10-01 | Komatsu Industries Corporation | Assist gas generation apparatus for laser processing machine |
-
2016
- 2016-03-02 CN CN201610117796.8A patent/CN107150169A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS642793A (en) * | 1987-06-23 | 1989-01-06 | Mitsubishi Electric Corp | Laser beam cutting method for al |
| JPH0199790A (en) * | 1987-10-12 | 1989-04-18 | Mitsubishi Electric Corp | Laser beam cutting method for material easy to stick dross |
| JPH05228664A (en) * | 1992-02-05 | 1993-09-07 | Showa Alum Corp | Laser cutting method for aluminum material |
| CN1129416A (en) * | 1994-06-06 | 1996-08-21 | 阿曼德有限公司 | Method and apparatus for supplying gaseous nitrogen to a laser beam machine |
| JP2006346737A (en) * | 2005-06-20 | 2006-12-28 | Mitsubishi Electric Corp | Laser beam machine and laser beam machining method |
| US20150273387A1 (en) * | 2012-10-26 | 2015-10-01 | Komatsu Industries Corporation | Assist gas generation apparatus for laser processing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581234A (en) * | 2018-07-06 | 2018-09-28 | 励科科技（深圳）有限公司 | A kind of aluminium alloy impulse- free robustness laser cutting method and ancillary equipment |
| US12059747B1 (en) | 2020-10-29 | 2024-08-13 | Gregory Lee Burns | Laser cutter with assist gas mixer and method of mixing assist gases |
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Application publication date: 20170912 |