JPS63108992A - Laser beam machining head - Google Patents

Laser beam machining head

Info

Publication number
JPS63108992A
JPS63108992A JP61254105A JP25410586A JPS63108992A JP S63108992 A JPS63108992 A JP S63108992A JP 61254105 A JP61254105 A JP 61254105A JP 25410586 A JP25410586 A JP 25410586A JP S63108992 A JPS63108992 A JP S63108992A
Authority
JP
Japan
Prior art keywords
nozzle
inner nozzle
processing
cylinder
gas
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.)
Pending
Application number
JP61254105A
Other languages
Japanese (ja)
Inventor
Tsugio Yamada
山田　次男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP61254105A priority Critical patent/JPS63108992A/en
Publication of JPS63108992A publication Critical patent/JPS63108992A/en
Pending legal-status Critical Current

Links

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
    • 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
    • B23K26/1476—Features inside the nozzle for feeding the fluid stream through the nozzle

Abstract

PURPOSE:To perform a stable laser beam machining with satisfactory accuracy by utilizing the gas exhaust port of a cylindrical body when an inner nozzle is situated at the position of the cylindrical body side part and utilizing the gas exhaust port of the nozzle when the nozzle is situated at the position of the cylindrical body tip to inject machining gas. CONSTITUTION:The inner nozzle 11 to slide along the side wall of the cylindrical body 1 is arranged in the machining nozzle cylindrical body 1. The sliding of the inner nozzle 11 is performed by the motion of a rod 12 by the motive power of an actuator 6. At the time of the laser cutting, the inner nozzle 11 which is machined to the prescribed diameter is pushed down up the tip of the cylindrical body 1 by the actuator 6. Next, the cutting is performed by the laser beam by utilizing the exhaust port of the inner nozzle 11. At the time of the laser welding, the inner nozzle 11 is pushed up and shunted and the gas for machining is injected from the exhaust port to perform the welding. The stable machining with the satisfactory accuracy can be performed by this laser beam machining head.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明はレーザ光線を用いて切断、溶接等の機械加工
を行うレーザ加工＊ｉｔの加工用ヘッドに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a processing head for laser processing *it which performs mechanical processing such as cutting and welding using a laser beam.

〔従来の技術〕[Conventional technology]

第４図、第５図は例えば実開昭６１−３６３８８号公報
に示された従来のレーザ切断・溶接併用形レーザ加工ヘ
ッドを示す断面図である。図において（１１は加工ノズ
ル筒体、（２）は加工レンズ固定用リング＋３１　、１
４１により加工ノズル筒体Ｔｌ＋の上部に固定された加
工レンズ、（５Ａ）は加工ノズル筒体１１）内を筒体側
壁に沿って上下に摺動されるインナーノズルであって、
例えば％６図に示すような形状を有し、先端部に切欠き
（５Ｂ）を有する。（６）はインナーノズル（５Ａ）を
摺動させるアクチュエータ、（７）は加工ガス注入口、
（８）は加工ガス排出口、＋９１は被加工物である。FIGS. 4 and 5 are cross-sectional views showing a conventional laser processing head for combined laser cutting and welding, as disclosed in, for example, Japanese Utility Model Application Publication No. 61-36388. In the figure (11 is the processing nozzle cylinder body, (2) is the processing lens fixing ring +31, 1
41 is a processing lens fixed to the upper part of the processing nozzle cylinder Tl+, (5A) is an inner nozzle that is slid up and down inside the processing nozzle cylinder 11) along the side wall of the cylinder,
For example, it has a shape as shown in Figure 6, and has a notch (5B) at the tip. (6) is an actuator that slides the inner nozzle (5A), (7) is a processing gas inlet,
(8) is a processing gas outlet, and +91 is a workpiece.

次に動作について説明する。この加工ヘッドはレーザ切
断加工とレーザ浴接加工を同じ加工ヘッドで行なうもの
であり、レーザ切断加工時はインナーノズル（５Ａ）を
アクチュエータ（６１により押し下げ、インナーノズル
先端口径を小さくし加工ガス流速を大きくする。レーザ
溶接加工時は加工ガス流速を小さくするためインナーノ
ズル（５Ａ）をアクチュエータ（６）により押し上げる
。この時インナーノズルの先端口径が大きくなるが、こ
の機構としては先端部に切欠き（５Ｂ）を入れたインナ
ーノズルのスプリングバックを利用している。Next, the operation will be explained. This processing head performs laser cutting processing and laser bath welding processing with the same processing head. During laser cutting processing, the inner nozzle (5A) is pushed down by the actuator (61) to reduce the diameter of the tip of the inner nozzle and reduce the processing gas flow rate. During laser welding, the inner nozzle (5A) is pushed up by the actuator (6) in order to reduce the processing gas flow velocity.At this time, the tip diameter of the inner nozzle becomes larger, but this mechanism has a notch ( 5B) is used to make use of the springback of the inner nozzle.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来のレーザ加工ヘッドは以上のように構成されている
ので、インナーノズルを押し上げた時の先端口径はイン
ナーノズルのスプリングバック次第で決まシ寸法の精度
が不安定である。一方インナーノズルを押し下げた時の
先端口径はインナーノズルの切シ欠き加工等の加工精度
に大きく左右されるので、高精度の加工が要求され製作
が難しかった。Since the conventional laser processing head is constructed as described above, the diameter of the tip when the inner nozzle is pushed up depends on the springback of the inner nozzle, and the dimensional accuracy is unstable. On the other hand, the diameter of the tip when the inner nozzle is pushed down is greatly affected by the machining accuracy of the inner nozzle's notch machining, etc., which requires high precision machining and is difficult to manufacture.

又、従来の構成では、インナーノズルを中間位置に止め
れば任意のノズル径とできるが、インナーノズル先端部
の熱容量が小さいためレーザ加工時の発生熱により先端
部が溶融し易い欠点があった。またインナーノズルを突
き出している時に、該ノズル先端部が溶融すると、イン
ナーノズル先端部の切欠き部分が互いに融着したり変形
したりしてインナーノズルを加工ノズル上部へ引き上げ
たときも、インナーノズルのガス排出孔が、広がらずに
収納されてしまう等の問題点があった。さらにインナー
ノズルを中間位置とし、任意のノズル径を得て、レーザ
切断加工する場合、上記ノズル切欠部からも切断ガスが
流出するため、先端部でのガス流速を確保するためには
、余計にガスを消費することになり不経済となる欠点が
あった。Further, in the conventional configuration, if the inner nozzle is stopped at an intermediate position, the nozzle diameter can be set to any desired diameter, but the tip has a drawback that the heat generated during laser processing tends to melt the tip because the heat capacity of the inner nozzle tip is small. In addition, if the tip of the inner nozzle melts while the inner nozzle is being pushed out, the cutout portions of the tip of the inner nozzle may fuse or deform with each other, and when the inner nozzle is pulled up to the top of the processing nozzle, the inner nozzle There were problems such as the gas exhaust hole of the device being retracted without expanding. Furthermore, when laser cutting is performed by setting the inner nozzle at an intermediate position and obtaining a desired nozzle diameter, the cutting gas will also flow out from the nozzle notch, so in order to ensure the gas flow velocity at the tip, it is necessary to This had the disadvantage of consuming gas and being uneconomical.

この発明は上記のような問題点を解消するためになされ
たもので、熱容量の大きいインナーノズルガス排出孔の
寸法精度の確保された安定して使えるインナーノズルを
有する加工ヘッドを提供するとともに、３種類以上の加
工ガス排出口径を選定することも可能としたレーザ加工
ヘッドを提供することを目的とする。This invention was made in order to solve the above-mentioned problems, and provides a processing head having an inner nozzle that can be used stably and with the dimensional accuracy of the inner nozzle gas discharge hole having a large heat capacity ensured. It is an object of the present invention to provide a laser processing head that allows selection of more than one type of processing gas exhaust diameter.

〔問題点を解決するための手段〕[Means for solving problems]

この発明に係るレーザ加工ヘッドは、小形精密に加工さ
れたインナーノズルを加工ノズル筒体内に設け、この筒
体内でインナーノズルは筒体側壁に沿って摺動自在に駆
動され、上記筒体先端部とレーザ光線を遮ぎらない筒体
側部の２位置間を移動し、該インナーノズルが上記筒体
側部位置にあるときは、上記筒体のガス排出口を加工ガ
ス噴出口として利用し、又該インナーノズルが上記筒体
先端部に位置した／ときは、上記筒体のガス排出口の口
径よシも小さい該インナーノズルのガス排出孔を利用し
て加工ガスを噴出させるようにしたものである。In the laser processing head according to the present invention, a small and precisely machined inner nozzle is provided in a processing nozzle cylinder, and the inner nozzle is slidably driven within this cylinder along the side wall of the cylinder, and the inner nozzle is driven at the tip of the cylinder. and the side of the cylinder that does not block the laser beam, and when the inner nozzle is in the side position of the cylinder, the gas outlet of the cylinder is used as a processing gas outlet, and When the inner nozzle is located at the tip of the cylindrical body, processing gas is ejected using the gas exhaust hole of the inner nozzle, which is smaller in diameter than the gas exhaust port of the cylindrical body. .

〔作用〕[Effect]

この発明におけるレーザ加工ヘッドは、インナーノズル
を加工ノズル筒体の先端部へ移動させると、加工ガス排
出口は、このインナーノズルのガス排出孔となり、イン
ナーノズルを筒体側壁に沿ってレーザー光線を遮きらな
い位置まで移動退避させると加工ガス排出口は加工ノズ
ル筒体のガス排出口となり、精度のよい安定した加工ガ
スの噴出口径が確保される。In the laser processing head according to the present invention, when the inner nozzle is moved to the tip of the processing nozzle cylinder, the processing gas discharge port becomes the gas discharge hole of this inner nozzle, and the inner nozzle is moved along the side wall of the cylinder to block the laser beam. When the machining gas discharge port is moved to a position where the machining gas is not completely removed, the machining gas discharge port becomes the gas discharge port of the machining nozzle cylinder body, and a stable and precise machining gas jet diameter is ensured.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明の一実施例を図について説明する。第１
図、第２図において、ｔｌ＋　、　＋２＋　、　ｆ４１
　、　ｔ６１〜ｆ９１は上記従来のレーザ加工ヘッドと
同様のものである。曲は加工レンズ（２）によって集光
されたレーザ光線、αυは加工ノズル筒体側壁に沿って
摺動させることができ、且つ筒体（１１に形成されたガ
ス排出口（８）の口径よシも小さい所定のノズル径を有
するガス排出孔が形成されたインナーノズル、（Ｉｚは
アクチュエータ（６１の動力を上記インナーノズルＵυ
に伝えるロッド、Ｕ↓はロッドの動力方向を示す矢印、
α荀はアクチュエータ（６）を加工ノズル筒体（１１に
固定する固定部材、（Ｉｓは加工レンズ（２）を取シっ
けるレンズホルダー、（ＩＱはしンズホルダーα９を加
工ノズル筒体に固定する固定リングである。An embodiment of the present invention will be described below with reference to the drawings. 1st
In Figure 2, tl+, +2+, f41
, t61 to f91 are similar to those of the conventional laser processing head described above. The curve is the laser beam focused by the processing lens (2), αυ can be slid along the side wall of the processing nozzle cylinder, and the diameter of the gas outlet (8) formed in the cylinder (11) The inner nozzle is formed with a gas discharge hole having a small predetermined nozzle diameter (Iz is an actuator (61) that supplies power to the inner nozzle Uυ
The rod transmits power to the rod, U↓ is an arrow indicating the direction of the rod's power,
αX is a fixing member that fixes the actuator (6) to the processing nozzle barrel (11), (Is is the lens holder that holds the processing lens (2), and (IQ is the fixing member that fixes the lens holder α9 to the processing nozzle barrel) It is a fixed ring.

以上のように構成された加工ヘッドにおいて、レーザ切
断加工時には、あらかじめ所定のノズル径に加工された
インナーノズル圓をアクチュエータ（６）により、加工
ノズル筒体（１）の先端まで押し下げる。通常レーザ切
断加工時の加工ノズル先端と被加工物（９）の表面との
距離は０．５〜２１１１であり、インナーノズルの形状
はこの距離を考慮して加工しである。レーザ溶接加工時
には、インナーノズルｑυをアクチュエータ（６１によ
り・押し上げ集光されたレーザー光線αＩを遮ぎらな”
い位置へ退避させる。In the processing head configured as described above, during laser cutting processing, the inner nozzle circle, which has been processed in advance to have a predetermined nozzle diameter, is pushed down to the tip of the processing nozzle cylinder body (1) by the actuator (6). Normally, the distance between the tip of the processing nozzle and the surface of the workpiece (9) during laser cutting is 0.5 to 2111 cm, and the shape of the inner nozzle is designed in consideration of this distance. During laser welding, the inner nozzle qυ is pushed up by the actuator (61) so as not to block the focused laser beam αI.
evacuate to a new position.

この時点で加工ガス排出口の口径は加工ノズル筒体【１
１のガス排出口（８）の口径となシインナーノズルのガ
ス排出孔の口径よりも大きくなる。At this point, the diameter of the processing gas outlet is set to the processing nozzle cylinder [1].
The diameter of the gas discharge port (8) of No. 1 is larger than the diameter of the gas discharge hole of the thinner nozzle.

なお上記実施例では、加工ノズル筒体（１１内のインナ
ーノズル（１υが１箇の場合について説明したが、第３
図に示すように、加工ノズル筒体（１１内の退避スペー
スが許す限り、−複数のインナーノズル（１１ａ）　（
ｌｌｂ）を設けてもよく、上記実施例と同様の効果を奏
する。In the above embodiment, the case where there is one inner nozzle (1υ) in the processing nozzle cylinder (11) is explained, but the third
As shown in the figure, as long as the evacuation space in the processing nozzle cylinder (11 allows) - a plurality of inner nozzles (11a) (
llb) may be provided, and the same effect as in the above embodiment can be achieved.

また、インナーノズルａυを増す場合には、そのノズル
径の異ったものを増設すれば、加工ノズル径を複数種類
準備でき、加工内容に応じて加ニガガス排出口の口径を
任意に選定準備しておくことが可能である。In addition, when increasing the number of inner nozzles aυ, you can prepare multiple types of machining nozzle diameters by adding ones with different nozzle diameters, and you can arbitrarily select and prepare the diameter of the gas discharge port depending on the processing content. It is possible to keep it.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によれば加工ノズル筒体内に小
形精度のインナーノズルを配置するよう構成したので、
従来の切シ欠きを設けたインナーノズルに比べ、切欠き
部のスプリングバックに頼る不安定さは無くガス排出孔
の寸法精度が高（、常に安定したガス排出口径が得られ
安定した精度の高いレーザ加工ができる。又、インナー
ノズルの先端部の熱容量が従来のものに比べ大きくでき
るので、加工時の発生熱によるガス排出孔の変形や溶融
はおこりにくく信頼度の高い加工ノズルが得られる。史
に、従来のインナーノズルのような先端部の切欠きなど
が無いため、この切欠き部からのガスの流出も無く、安
定したガスの噴出流が得られ無駄なガスの消費も避けら
れ安定したレーザ加工ができる。As described above, according to the present invention, since the small precision inner nozzle is arranged inside the processing nozzle cylinder,
Compared to the conventional inner nozzle with a notch, there is no instability due to the springback of the notch, and the dimensional accuracy of the gas exhaust hole is high. Laser processing is possible.Also, since the heat capacity of the tip of the inner nozzle can be increased compared to conventional ones, the gas exhaust hole is less likely to be deformed or melted due to the heat generated during processing, and a highly reliable processing nozzle can be obtained. Historically, since there is no notch at the tip like a conventional inner nozzle, there is no gas flowing out from this notch, and a stable gas jet flow is obtained, avoiding wasteful gas consumption and making it stable. Laser processing is possible.

向、インナーノズルを加工ノズル筒体内に予め所定の寸
法のものを複数個設置しておけば、１個の加工ヘッドで
数種の加工ノズル口径を選定できるので、レーザ加工作
業を能率よく行うことができる。By installing a plurality of inner nozzles with predetermined dimensions inside the processing nozzle cylinder in advance, several types of processing nozzle diameters can be selected with one processing head, making laser processing work more efficient. Can be done.

又同一寸法の口径をもつインナーノズルを複数個加工ノ
ズル筒体内に設置しておくことによって、１つのノズル
が使用中に損傷を受けたり、又は使用劣化によシ使えな
くなった時に、直ちに短時間で予備のインナーノズルと
交替させることが可能になり、長時間連続的に加工を行
うことができるなどの効果が得られる。In addition, by installing multiple inner nozzles with the same size and diameter inside the processed nozzle cylinder, if one nozzle is damaged during use or becomes unusable due to deterioration from use, it can be immediately removed for a short time. This makes it possible to replace the inner nozzle with a spare inner nozzle, resulting in effects such as continuous machining for long periods of time.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの発明の一実施例によるレーザー加工ヘッド
を示す断面図で、レーザー切断加工時の構成を示す。第
２図はこの発明の一実施例でレーザー溶接加工時の構成
を不す断面図、第３図はこの発明の他の実施例によるレ
ーザー加工ヘッドを示す断面図、第４図は従来のレーザ
ー加工ヘッドを示す断面図でレーザー溶接加工時の構成
を示し、第５図は従来のレーザー加工ヘッドを示す断面
図でレーザー切断加工時の構成を示す。第６図は従来の
レーザー那エヘッドの加工ノズル筒体とインナーノズル
の構成を示す分解斜視図である。 図に詔いて、１１１は加工ノズル筒体、（８＋は加工ガ
ス排出口、σｌはレーザー光線、ａυはインナーノズル
である。 なお、図中同一符号は同一、又は相当部分を示す。FIG. 1 is a sectional view showing a laser processing head according to an embodiment of the present invention, showing the configuration during laser cutting processing. FIG. 2 is a cross-sectional view showing an embodiment of the present invention, with the configuration removed during laser welding processing, FIG. 3 is a cross-sectional view showing a laser processing head according to another embodiment of the invention, and FIG. 4 is a conventional laser welding head. A sectional view showing a processing head shows the configuration during laser welding processing, and FIG. 5 is a sectional view showing a conventional laser processing head and shows the configuration during laser cutting processing. FIG. 6 is an exploded perspective view showing the structure of a processed nozzle cylinder and an inner nozzle of a conventional laser head. In the figure, 111 is a processing nozzle cylinder, (8+ is a processing gas outlet, σl is a laser beam, and aυ is an inner nozzle. The same reference numerals in the figure indicate the same or equivalent parts.

Claims (2)

【特許請求の範囲】[Claims] （１）レーザ光線の伝播路と共にレーザ加工用ガス流路
を構成し、該流路の先端にガス排出口を、流路途中に加
工用ガス注入口を形成された加工ノズル筒体、この筒体
内で、筒体側壁に沿つて摺動自在に駆動され、上記筒体
先端部とレーザ光線を遮ぎらない筒体側部の２位置間を
移動するインナーノズルを備え、上記インナーノズルに
は、上記筒体のガス排出口の口径よりも小さい口径を有
するガス排出孔を形成し、該インナーノズルが上記筒体
側部位置にある時は、上記筒体のガス排出口を利用して
、又インナーノズルが上記筒体先端部位置にある時は、
該インナーノズルのガス排出孔を利用して各々加工用ガ
スを噴出するよう構成したレーザ加工ヘッド。(1) A processing nozzle cylinder that forms a laser processing gas flow path together with a laser beam propagation path, and has a gas exhaust port at the tip of the flow path and a processing gas inlet in the middle of the flow path; The inner nozzle is slidably driven in the body along the side wall of the cylinder and moves between two positions, the tip of the cylinder and the side of the cylinder that does not block the laser beam. A gas exhaust hole having a diameter smaller than that of the gas exhaust port of the cylinder is formed, and when the inner nozzle is located at the side of the cylinder, the gas exhaust hole of the cylinder is used to open the inner nozzle. When is at the tip of the cylinder above,
A laser processing head configured to eject processing gas using gas discharge holes of the inner nozzle. （２）インナーノズルを複数個具備したことを特徴とす
る特許請求の範囲第１項記載のレーザ加工ヘッド。(2) The laser processing head according to claim 1, characterized in that it includes a plurality of inner nozzles.
JP61254105A 1986-10-23 1986-10-23 Laser beam machining head Pending JPS63108992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61254105A JPS63108992A (en) 1986-10-23 1986-10-23 Laser beam machining head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61254105A JPS63108992A (en) 1986-10-23 1986-10-23 Laser beam machining head

Publications (1)

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JPS63108992A true JPS63108992A (en) 1988-05-13

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JP61254105A Pending JPS63108992A (en) 1986-10-23 1986-10-23 Laser beam machining head

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04127988A (en) * 1990-09-17 1992-04-28 Hitachi Ltd Laser beam machining system, and working device used therefor, and aligning device
US6667459B1 (en) * 2000-11-21 2003-12-23 Hypertherm, Inc. Configurable nozzle baffle apparatus and method
JP2012000648A (en) * 2010-06-17 2012-01-05 Laserx:Kk Nozzle for use both in laser cutting and laser welding, laser beam machine using the same, and method of plate butt welding using the same
WO2012156608A1 (en) 2011-05-16 2012-11-22 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle with mobile element
WO2013150195A1 (en) 2012-04-04 2013-10-10 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle with mobile element of improved external profile
WO2014072609A1 (en) 2012-11-09 2014-05-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle having an external mobile element
WO2014072611A1 (en) 2012-11-09 2014-05-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle having an internal mobile element and an external cover
WO2014072610A1 (en) 2012-11-09 2014-05-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle having a modular mobile element made of electrically insulating material and an insert made of electrically conductive material
WO2015170029A1 (en) 2014-05-06 2015-11-12 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Nozzle for laser cutting with an internal moveable element and a sleeve with low relative permittivity

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04127988A (en) * 1990-09-17 1992-04-28 Hitachi Ltd Laser beam machining system, and working device used therefor, and aligning device
US6667459B1 (en) * 2000-11-21 2003-12-23 Hypertherm, Inc. Configurable nozzle baffle apparatus and method
JP2012000648A (en) * 2010-06-17 2012-01-05 Laserx:Kk Nozzle for use both in laser cutting and laser welding, laser beam machine using the same, and method of plate butt welding using the same
RU2607889C2 (en) * 2011-05-16 2017-01-11 Л'Эр Ликид, Сосьете Аноним Пур Л'Этюд Э Л'Эксплуатасьон Де Проседе Жорж Клод Laser nozzle having moving element
WO2012156608A1 (en) 2011-05-16 2012-11-22 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle with mobile element
FR2975318A1 (en) * 2011-05-16 2012-11-23 Air Liquide LASER NOZZLE WITH MOBILE ELEMENT
US10926352B2 (en) 2011-05-16 2021-02-23 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Laser nozzle with mobile element
US10786868B2 (en) 2011-05-16 2020-09-29 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Laser nozzle with mobile element
WO2013150195A1 (en) 2012-04-04 2013-10-10 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle with mobile element of improved external profile
US9616525B2 (en) 2012-04-04 2017-04-11 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Laser nozzle with mobile element of improved external profile
EP3300831A1 (en) 2012-04-04 2018-04-04 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle with mobile element having an improved external profile
WO2014072610A1 (en) 2012-11-09 2014-05-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle having a modular mobile element made of electrically insulating material and an insert made of electrically conductive material
US9604310B2 (en) 2012-11-09 2017-03-28 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Laser nozzle having an external mobile element
US9610652B2 (en) 2012-11-09 2017-04-04 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Laser nozzle having an external mobile element made of electrically insulating material and an insert made of electrically conductive material
US9844832B2 (en) 2012-11-09 2017-12-19 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Laser nozzle having an internal mobile element and an external cover
WO2014072611A1 (en) 2012-11-09 2014-05-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle having an internal mobile element and an external cover
WO2014072609A1 (en) 2012-11-09 2014-05-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle having an external mobile element
WO2015170029A1 (en) 2014-05-06 2015-11-12 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Nozzle for laser cutting with an internal moveable element and a sleeve with low relative permittivity
EP3315247A1 (en) 2014-05-06 2018-05-02 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Nozzle for laser cutting with internal mobile element and sleeve having low relative permittivity
EP3315246A1 (en) 2014-05-06 2018-05-02 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Laser nozzle with internal mobile element and nozzle body being made in two parts connected through fixtures

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