WO2011101566A1 - Installation d'usinage laser avec source de gaz commune pour l'oscillateur et la tête laser - Google Patents
Installation d'usinage laser avec source de gaz commune pour l'oscillateur et la tête laser Download PDFInfo
- Publication number
- WO2011101566A1 WO2011101566A1 PCT/FR2011/050113 FR2011050113W WO2011101566A1 WO 2011101566 A1 WO2011101566 A1 WO 2011101566A1 FR 2011050113 W FR2011050113 W FR 2011050113W WO 2011101566 A1 WO2011101566 A1 WO 2011101566A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- laser
- oscillator
- source
- head
- Prior art date
Links
- 238000003754 machining Methods 0.000 title claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 101
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 53
- 230000003287 optical effect Effects 0.000 claims abstract description 30
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 22
- 238000003860 storage Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 239000001307 helium Substances 0.000 claims description 8
- 229910052734 helium Inorganic materials 0.000 claims description 8
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000006200 vaporizer Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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
- B23K26/14—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
- B23K26/1462—Nozzles; Features related to nozzles
- B23K26/1464—Supply to, or discharge from, nozzles of media, e.g. gas, powder, wire
- B23K26/147—Features outside the nozzle for feeding the fluid stream towards the workpiece
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0071—Beam steering, e.g. whereby a mirror outside the cavity is present to change the beam direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/03—Constructional details of gas laser discharge tubes
Definitions
- the invention relates to the field of welding, cutting or the like by laser beam and more specifically, a laser machining facility with laser oscillator, optical path and laser head fed by the same and single source of gas, in particular nitrogen.
- the gas supply is done in two ways, namely:
- the so-called “process” gas or gases which are used in laser cutting, for example nitrogen, oxygen or their mixtures, or in laser welding, such as argon, helium, nitrogen or mixtures thereof, usually come from a source or supply of "bulk” type, that is to say from a storage tank 9 of large capacity, or of conditioned type, that is to say of limited capacity gas conditioning containers, typically gas cylinders.
- These "process” gases primarily feed the focusing head but possibly also the optical path of the laser. It should be noted, however, that the optical path can also be fed with compressed air.
- Document US-A-2006/088073 teaches a laser installation of this type.
- lasing gases such as nitrogen, which feed the oscillator 1 of the laser device and which are therefore used to generate the laser beam, always come from a supply or source type conditioning , that is to say 1 1 bottles of gas because these lasing gases must have very high purities, ie generally at least 99.999% by volume.
- US-A-6,215,808 teaches a laser facility of this type with several oscillators.
- the invention relates to a laser machining installation comprising a laser oscillator for generating a laser beam, a laser head traversed by the laser beam, an optical path for conveying the laser beam between the laser oscillator and the laser head.
- a source of gas fluidly connected to the laser head via a main gas pipeline, characterized in that it further comprises a secondary pipe fluidly connecting said gas source to the laser oscillator.
- a source of common gas and large capacity such as a gas storage tank in gaseous or liquid form, feeds both the laser head used for machining and the laser oscillator used to generate the laser beam.
- laser machining means welding, cutting, marking or any other work by laser beam.
- the installation of the invention may include one or more of the following features:
- the gas source is a storage tank having a capacity of at least 900 liters, preferably at least 3000 liters, preferably at least 7500 liters.
- - It comprises a gas expansion device, arranged on the secondary pipe, to reduce the pressure of the gas from the gas source, prior to its introduction into the oscillator.
- the gas source is a liquid nitrogen storage tank.
- the gas source is fluidly connected to the laser head and to the optical path via the main pipe.
- a gas vaporizer arranged between the gas source and the main pipe or the secondary pipe.
- a heat exchanger also known as a vaporizer, is arranged at the outlet of the tank and makes it possible to vaporize the liquid nitrogen from the tank and thus obtain nitrogen gas which is then conveyed into the main pipes and secondary.
- a gas purification device comprising a filter or an adsorbent adapted to and designed to remove at least one impurity chosen from water vapor, hydrocarbons and oxygen is arranged on the secondary pipe and / or on the main pipe; .
- a filter or an adsorbent adapted to and designed to remove at least one impurity chosen from water vapor, hydrocarbons and oxygen is arranged on the secondary pipe and / or on the main pipe; .
- Such a device can serve as a safety device to ensure that the purity of the gas is always respected.
- the oscillator is also fed with at least C0 2 and helium or a CO 2 / He mixture from one or more gas cylinders.
- the laser oscillator is of type C0 2 .
- the laser oscillator, the optical path and the laser head are located in a building, and the gas source is located outside of said building.
- the invention also relates to a method for powering a laser machining installation comprising a laser oscillator, a laser head, an optical path for conveying the laser beam between the laser oscillator and the laser head, with a gas coming from a source of gas, in which:
- said laser head is fed with gas from said main pipe, characterized in that the oscillator is fed with gas from said secondary pipe.
- the method of the invention may include one or more of the following features:
- the gas is nitrogen, preferably stored in liquid form.
- the pressure of the gas is adjusted before it is introduced into the optical path, in the oscillator and / or in the laser head, or even in the optical path.
- the pressure of the gas is reduced before it is introduced into the oscillator or the optical path.
- the gas source is a storage tank of at least 900 liters, preferably at least 3000 liters.
- the oscillator is further supplied with helium and CO 2 or with a CO 2 / He mixture originating from one or more gas cylinders.
- the nitrogen introduced into the oscillator has a purity of at least 99.999% by volume.
- the nitrogen is withdrawn from the source of gas in liquid form and then vaporized.
- FIGS. 1 and 2 schematize laser installations of type C0 2 according to the prior art
- Figures 3 and 4 schematize laser installations according to the invention.
- Figures 1 and 2 show the diagram of a C0 2 type laser beam work installation, for example cutting or laser welding, according to the prior art.
- a generator or oscillator 1 of the type C0 2 makes it possible to generate a laser beam which is then conveyed by a path or optical cavity 2 to a laser head 3 where it is focused by a focusing lens 4 or a focusing mirror (in laser welding, a mirror has the role of directing and focusing the beam) or the like in the thickness or near the surface of one or more parts 6 to be machined.
- the optical focusing device is a lens 4.
- the lens 4 may be single-focal, that is to say, single-focal, or multifocal, for example bifocal, that is to say, focusing the beam into two distinct focusing points.
- the lens 4 makes it possible to mechanically and fluidically isolate the optical path 2 of the laser head 3 because the pressures that prevail therein are generally not identical.
- the laser oscillator 1 is powered by 3 1 liter bottles of laser gas, for example nitrogen referenced LASAL TM 1, carbon dioxide (C0 2 ) referenced LASAL TM 2 and helium LASAL TM 4 referenced; the gases referenced LASAL TM are marketed by the company L'Air Liquide.
- the oscillator can also be fed with a gaseous premix containing nitrogen (N 2 ), helium and C0 2 , and even others
- constituents such as CO.
- a storage tank 9 of liquid nitrogen type "bulk” whose output is fluidly connected to a vaporizer or heat exchanger 10 can feed, via one or more gas lines 8 and dedicated inputs 13, 12, respectively, the laser head 3 and the optical path 2 with nitrogen gas.
- the inputs 13, 12 are generally located at a gas supply cabinet 5, as illustrated in FIG. 2.
- the laser head 3 is usually carried by a mobile beam 14 with respect to a machining table 7 on which the workpiece (s) is or are arranged, the assembly being arranged in an enclosure of protection 15.
- FIGS. 1 and 2 it is proposed to simplify the architecture of the installation of FIGS. 1 and 2 in the manner illustrated in FIGS. 3 and 4. It should be specified that the parts of the installation that are not modified will not necessarily be detailed. hereinafter and for further details, reference is made to Figures 1 and 2 and the explanations given above.
- the C0 2 type laser generator or oscillator 1 which is used to generate the laser beam by means of laser pressure gases, namely nitrogen, helium and C0 2 , is fed,
- bottles 11 previously using bottles 11 containing each of these gases or bottles containing gaseous premixes, the composition of the final mixture being a function of the laser used.
- the bottles 11 are furthermore equipped with flow and / or pressure regulating members, in particular valves with built-in expansion valves, and manometers, or even protective covers for protecting said regulating members.
- the storage tank 9 of liquid nitrogen makes it possible not only to feed the laser head 3 but also the oscillator 1, and possibly the optical path 2 with nitrogen " bulk "from said storage tank 9 which is withdrawn in liquid form, vaporized in the vaporizer 10 to be conveyed, on the one hand, to the laser head 3 via the line 8 which branched and, on the other hand, towards the laser oscillator 1 via an additional line 18 which is connected to the line 8, that is to say a bypass of the line 8.
- a portion of the nitrogen may also be sent to the optical path 2 which serves to recover the laser beam at the output of the laser generator 1, then to convey it to the laser head 3 comprising a laser nozzle and a laser device.
- focusing 4 such as a lens or focusing mirror.
- the laser beam then passes through the laser head 3 by being focused, before striking the part or parts 6 to be welded or cut for example, the head 3 being further supplied with nitrogen from the reservoir 9.
- the optical path 2 is typically formed of a passage provided with optics, such as mirrors and / or lenses.
- the source or gas reservoir 9 is preferably a storage tank of large capacity, that is to say having a capacity of at least 900 liters, preferably at least 3000 liters of nitrogen.
- this tank 1 is located outside the building in which is installed the rest of the installation, namely mainly the laser generator 1, the optical path 2 and the laser head 3, and the support table 7 on which rest or the parts 6 to be machined and the protective enclosure 15.
- the laser head 3 and the laser oscillator 1 are generally different, it is preferable to provide one or more gas expansion devices 20, such as gas expansion valves, on the main pipe 8 and / or on the secondary pipe 18.
- gas expansion devices 20 such as gas expansion valves
- An expansion device 20 must be designed for and capable of reducing the pressure of the gas flowing in the main pipe 8 or secondary 18, prior to its introduction into the optical path 2, the head 3 or the oscillator 1.
- the gas conveyed by the main pipe 8 is at a pressure between 15 and 32 bar relative, for example of the order of 25 bar, while in the optical path, the gas is overpressurized to prevent particles in the air does not get inside.
- the power supply of the laser oscillator has a relative pressure of between 1 and 15 bar.
- FIG. 4 is similar to FIG. 3, except that the installation also comprises a purification device 21, such as a filter, arranged on the secondary line 18, preferably between the expander 20 and the the input of the oscillator 1, so as to ensure a given high purity of the lasing gas, namely nitrogen, introduced into the oscillator 1.
- a purification device 21 such as a filter
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Lasers (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11705643A EP2536529A1 (fr) | 2010-02-16 | 2011-01-21 | Installation d'usinage laser avec source de gaz commune pour l'oscillateur et la tête laser |
US13/579,322 US20120312788A1 (en) | 2010-02-16 | 2011-01-21 | Laser machining equipment having a common gas source for the laser oscillator and head |
CA2785577A CA2785577A1 (fr) | 2010-02-16 | 2011-01-21 | Installation d'usinage laser avec source de gaz commune pour l'oscillateur et la tete laser |
BR112012020554-4A BR112012020554A2 (pt) | 2010-02-16 | 2011-01-21 | instalação de usinagem laser com fonte de gás comum para o oscilador e a cabeça lazer. |
CN2011800097069A CN102762334A (zh) | 2010-02-16 | 2011-01-21 | 具有用于激光振荡器和激光头的公共气体源的激光加工设备 |
JP2012553368A JP2013520025A (ja) | 2010-02-16 | 2011-01-21 | レーザー発振器およびヘッドのための共通のガス供給源を有するレーザー機械加工設備 |
RU2012139629/02A RU2012139629A (ru) | 2010-02-16 | 2011-01-21 | Установка для лазерной обработки с источником газа, общим для лазерного генератора и лазерной головки |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1051067A FR2956337B1 (fr) | 2010-02-16 | 2010-02-16 | Installation d'usinage laser avec source de gaz commune pour l'oscillateur et la tete laser |
FR1051067 | 2010-02-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011101566A1 true WO2011101566A1 (fr) | 2011-08-25 |
Family
ID=42829047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2011/050113 WO2011101566A1 (fr) | 2010-02-16 | 2011-01-21 | Installation d'usinage laser avec source de gaz commune pour l'oscillateur et la tête laser |
Country Status (9)
Country | Link |
---|---|
US (1) | US20120312788A1 (fr) |
EP (1) | EP2536529A1 (fr) |
JP (1) | JP2013520025A (fr) |
CN (1) | CN102762334A (fr) |
BR (1) | BR112012020554A2 (fr) |
CA (1) | CA2785577A1 (fr) |
FR (1) | FR2956337B1 (fr) |
RU (1) | RU2012139629A (fr) |
WO (1) | WO2011101566A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101523673B1 (ko) * | 2013-12-27 | 2015-05-28 | 에이피시스템 주식회사 | 레이저 조사 방법 및 레이저 조사 모듈 |
CN106077969A (zh) * | 2016-06-30 | 2016-11-09 | 禹州市神运机械有限公司 | 一种二氧化碳激光切割设备 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6215808B1 (en) | 1997-04-25 | 2001-04-10 | Nikon Corporation | Laser apparatus, exposure apparatus, lithography system, method for producing circuit elements, gas supply system and gas supply method |
US20060088073A1 (en) | 2004-10-25 | 2006-04-27 | Maas Marinus F V | Method and apparatus for carrying out a laser operation and use of a quick-change filter in such a laser operation |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3596202A (en) * | 1969-03-28 | 1971-07-27 | Bell Telephone Labor Inc | Carbon dioxide laser operating upon a vibrational-rotational transition |
US3641457A (en) * | 1969-09-10 | 1972-02-08 | United Aircraft Corp | High-performance gas laser |
JPH07108464B2 (ja) * | 1991-10-28 | 1995-11-22 | ジューキ株式会社 | レーザー加工装置 |
CN1107570C (zh) * | 1994-06-06 | 2003-05-07 | 阿曼德有限公司 | 向激光束机提供气态氮的方法和设备及一种激光束机 |
DE19842413C1 (de) * | 1998-09-16 | 1999-10-28 | Linde Ag | Gasversorgung mit Gasen aus Gasbehältern |
CN1328003C (zh) * | 2003-05-20 | 2007-07-25 | 三菱电机株式会社 | 激光加工装置 |
EP2024132A1 (fr) * | 2006-05-09 | 2009-02-18 | Trumpf Laser- und Systemtechnik GmbH | Machine d'usinage au laser avec un dispositif de ventilation du guidage du rayon laser et procede de ventilation du guidage du rayon laser d'une machine d'usinage au laser |
-
2010
- 2010-02-16 FR FR1051067A patent/FR2956337B1/fr not_active Expired - Fee Related
-
2011
- 2011-01-21 JP JP2012553368A patent/JP2013520025A/ja not_active Withdrawn
- 2011-01-21 RU RU2012139629/02A patent/RU2012139629A/ru not_active Application Discontinuation
- 2011-01-21 EP EP11705643A patent/EP2536529A1/fr not_active Withdrawn
- 2011-01-21 US US13/579,322 patent/US20120312788A1/en not_active Abandoned
- 2011-01-21 WO PCT/FR2011/050113 patent/WO2011101566A1/fr active Application Filing
- 2011-01-21 BR BR112012020554-4A patent/BR112012020554A2/pt not_active IP Right Cessation
- 2011-01-21 CN CN2011800097069A patent/CN102762334A/zh active Pending
- 2011-01-21 CA CA2785577A patent/CA2785577A1/fr not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6215808B1 (en) | 1997-04-25 | 2001-04-10 | Nikon Corporation | Laser apparatus, exposure apparatus, lithography system, method for producing circuit elements, gas supply system and gas supply method |
US20060088073A1 (en) | 2004-10-25 | 2006-04-27 | Maas Marinus F V | Method and apparatus for carrying out a laser operation and use of a quick-change filter in such a laser operation |
Also Published As
Publication number | Publication date |
---|---|
FR2956337A1 (fr) | 2011-08-19 |
US20120312788A1 (en) | 2012-12-13 |
FR2956337B1 (fr) | 2012-03-02 |
RU2012139629A (ru) | 2014-03-27 |
CA2785577A1 (fr) | 2011-08-25 |
CN102762334A (zh) | 2012-10-31 |
EP2536529A1 (fr) | 2012-12-26 |
JP2013520025A (ja) | 2013-05-30 |
BR112012020554A2 (pt) | 2018-03-13 |
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