EP0107573B1 - Hochdruckflüssigkeitsstrahlschneidegerät - Google Patents

Hochdruckflüssigkeitsstrahlschneidegerät Download PDF

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Publication number
EP0107573B1
EP0107573B1 EP83401987A EP83401987A EP0107573B1 EP 0107573 B1 EP0107573 B1 EP 0107573B1 EP 83401987 A EP83401987 A EP 83401987A EP 83401987 A EP83401987 A EP 83401987A EP 0107573 B1 EP0107573 B1 EP 0107573B1
Authority
EP
European Patent Office
Prior art keywords
jet
cut
recovery system
trough
appliance according
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.)
Expired
Application number
EP83401987A
Other languages
English (en)
French (fr)
Other versions
EP0107573A1 (de
Inventor
Alain Jardat
Joel Andre
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.)
Airbus Group SAS
Original Assignee
Airbus Group SAS
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 Airbus Group SAS filed Critical Airbus Group SAS
Publication of EP0107573A1 publication Critical patent/EP0107573A1/de
Application granted granted Critical
Publication of EP0107573B1 publication Critical patent/EP0107573B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
    • B26F3/008—Energy dissipating devices therefor, e.g. catchers; Supporting beds therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • B26D2007/206—Cutting beds having a travelling gap
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/936—Cloth or leather
    • Y10S83/938—Moving cloth or leather
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/364—By fluid blast and/or suction

Definitions

  • the present invention relates to a high pressure fluid jet cutting apparatus for cutting sheet materials such as plastics, paper, leather, rubber, etc. and composite materials in the form of fabrics or sheets of fibers, more particularly synthetic fibers such as glass fibers, carbon fibers or aromatic polyamide fibers, these fabrics or sheets being able to be prepregs and possibly laminated.
  • a jet of high pressure fluid concentrated by a nozzle, cuts the materials placed on a work table
  • the fluid used is generally running water.
  • This jet of fluid moves along its axis at a supersonic speed at the outlet of the nozzle and above the parts to be cut, the cutting speed being variable depending on the nature of the materials but may be significant.
  • the fluid jet retains considerable residual energy when it comes out of the material it has just cut. It is therefore necessary to provide a system for recovering the jet placed opposite the nozzle.
  • Fluid jet cutting devices are already known comprising a jet recovery system.
  • a fluid jet cutting device which comprises a cutting table constituted by a rectangular tank in which is mounted a bench formed by a honeycomb structure on which entirely rests the material to be cut.
  • the upper edges of the walls of the relatively small cells formed by the honeycomb structure are in the form of serrations or scallops and include points at the intersections of the walls of the cells and on which the material to be cut rests.
  • Below the honeycomb structure are fixed parallel deflector plates arranged in such a way that they are inclined downwards and that their upper edges are in the form of a knife blade and situated between two walls of the cells of the honeycomb structure.
  • the recovery of the residual energy of the fluid jet is carried out at the same time by means of the tips, serrations or festoons of the honeycomb structure, which divide or diffuse the jet, and via the relatively small cells of this structure, which trap the jet.
  • a protective sheet of plastic or similar material is arranged between the material to be cut and the top of the table. This sheet, which is cut during the passage of the jet, avoids splashing.
  • the bench housed in the rectangular tank no longer contains a honeycomb structure, but a series of plates whose upper edges have a shape with a knife blade, these plates being curved downwards and used to break the residual jet.
  • a material such as metallic wool, steel shot or gravel, intended to reduce splashing, to reduce noise and to avoid excessive wear of the plates.
  • the bench In order to absorb the residual energy, the bench contains a liquid which can be kept at a constant level.
  • the honeycomb structure or a similar structure constitutes the very support of the material to be cut.
  • a large quantity of this structure must therefore be available.
  • this structure must be machined at least at the upper edge, and it must be replaced often because it deteriorates during use. Consequently, these known devices are of a high price and maintenance cost.
  • the document CH-A-567908 describes a fluid jet cutting apparatus, in which the jet recovery system is placed behind an opening formed in the work table and comprises a container at the bottom of which is a liquid relatively cold, a device for absorbing the energy of the jet being placed between the table and the container.
  • This document served as the basis for the preparation of the preamble of claim 1.
  • the present invention specifically relates to a fluid jet cutting apparatus comprising a jet recovery system which does not have the drawbacks of the recovery systems known according to the prior art and which makes it possible in particular to reduce the cost and maintenance costs and this device, and not to cause significant wetting of the material to be cut, which allows in particular not to alter the mechanical and physical qualities thereof.
  • a high pressure fluid jet cutting apparatus comprising a working nozzle emitting a fluid jet, a working table capable of supporting a material to be cut and comprising an opening in view of the working nozzle and a jet recovery system, the jet recovery system being placed behind said opening and comprising a container at the bottom of which is a relatively cold liquid, a device for absorbing the energy of the jet being placed between the table and the container, characterized in that it further comprises means for moving the working nozzle in a given cutting direction, the opening being a slot and the container of the recovery system a chute, a cellular material being placed at the entrance to the chute, set back with respect to the work table, and means for establishing a depression at the entrance to the chute, between the work table and the material iau alveolar, deflectors being placed between the bottom of the trough and the alveolar material and defining between them a slot allowing the passage of the fluid jet, the assembly formed by the bottom of the trough and by
  • the bottom of the chute is preferably slightly inclined in the cutting direction.
  • the width of the slot formed in the work table, as well as the diameter of the nozzle used to make the cut can be modified according to the thickness and the nature of the material to be cut, preferably using adjustable means to establish the depression at the entrance to the chute.
  • an automatic fluid jet cutting device comprising a working nozzle 1 delivering a jet 2 of a fluid such as running water under a working pressure of, for example, between 3000 and 4000 bars.
  • the jet 2 makes it possible to cut a sheet material at high speed 3 placed on a table or work surface 4 constituted by two flat parts and situated in the same plane of an endless flexible mat 5 mounted on rollers 6a to 6d and 7a to 7d. More precisely, the two flat parts of the flexible mat 5 constituting the working surface 4 are constituted by the parts of this mat situated, on the one hand, between the rollers 6a and 7a and, on the other hand, between the rollers 6d and 7d. As shown in fig. 1, the rollers 7a to 7d are arranged so that the flexible mat 5 forms a loop 8 opposite the working nozzle 1, this loop 8 connecting the two flat parts of the mat forming the working surface 4, defining between these two flat parts and opposite the nozzle 1 an opening 9.
  • a mechanism (not shown) of any known type makes it possible to move the nozzle 1 in a transverse cutting direction relative to the device, along the opening 9. This displacement of the nozzle is shown diagrammatically by the arrow F, in FIG. 3.
  • At least one of the rollers 6 and 7 carrying the flexible mat 5 is provided with drive means (not shown) also of a known type. The implementation of these means makes it possible to advance the mat 5 (arrow F2 in fig. 1) and the material 3 which it supports in a longitudinal direction relative to the device, that is to say perpendicularly to the cutting direction.
  • the advance movement indicated by the arrow F 2 is carried out by the assembly constituted by the nozzle 1, the recovery system and the rollers 7 intimately linked, relative to the flexible mat 5 then fixed and keeping the previous configuration, the nozzle separately retaining its advance movement F 1 .
  • a judicious combination of the movements F, and F 2 makes it possible to cut the material 3 along any cutting line determined in advance.
  • a jet recovery system designated by the general reference 10 is housed in the loop 8.
  • this working surface further comprises, in this opening 9 and above the neck of the chute, two flat and fixed plates 23 forming between them a slot 25 whose width is adapted according to the thickness of the material to be cut, so as to allow the passage of the jet 2.
  • the jet recovery system 10 mainly comprises a metal chute 11 which extends transversely over the entire width of the apparatus, between two end partitions 11a, as shown in FIG. 3.
  • the bottom of the chute 11 defines a gutter 12 having in section the shape of an arc of a circle.
  • the chute 11 has a neck 15 of reduced width relative to the bottom 12 of the chute, and on which the plates 23 are fixed.
  • the neck 15 is connected to the bottom 12 by a part 14 in the form of a divergent.
  • the upper part of the neck 15 of the chute is empty over a certain distance d i from the material 3 to be cut.
  • the high-pressure fluid jet encounters a layer 16, of thickness e, of a metallic cellular material placed at the lower part of the neck 15 of the chute.
  • the axis of the cells formed in the material 16 is parallel to the axis of the jet 2.
  • the material 16 is composed of a fine mesh structure 16a sandwiched between two structures 16b with larger meshes. Given the pressure of the jets of fluid usually used, these jets do not cut metals, so that the energy of the jet is broken on the webs or walls of the cellular material.
  • the vacuum device acting through the slot 17 can be adjusted in order to adjust the vacuum at the inlet of the neck of the chute according to the thickness of the material to be cut and according to the diameter of the nozzle used to perform the cut.
  • the adjustment of the vacuum device communicating with the orifice 17 makes it possible in particular to increase the vacuum when the material to be cut is flexible.
  • the slot 25 can thus be obstructed by this material, which limits the wetting of the top of the work surface.
  • the depression has the effect of slightly pressing the first sheet or fold against the working surface at the level of the slot. The material to be cut is thus very little affected by cutting humidity.
  • the jet travels a relatively large distance d 2 (fig. 2) relative to d i before encountering a liquid such as relatively cold running water 20 circulating in the bottom 12 from the chute.
  • d 2 a relatively large distance relative to d i before encountering a liquid such as relatively cold running water 20 circulating in the bottom 12 from the chute.
  • the circulation of water 20 in the bottom of the chute takes place between an inlet orifice 21 and an outlet orifice 22, under the effect of a slight inclination of the bottom 12 ( fig. 3). This inclination is small as well as the flow of water 20 which results therefrom, so that the height h of the water in the bottom of the chute is sufficient over the entire width of the device to ensure recovery anywhere. energy efficient of the jet.
  • the internal wall of the chute is provided with two deflectors 18 having a section in an arc extending the wall of the bottom 12 of the chute.
  • the deflectors 18 are arranged opposite one another and symmetrically with respect to the cutting plane generated by the axis of the nozzle 1 when the latter moves transversely to the device under the action of control means of a known type (not shown).
  • the ends of the deflectors 18 define between them a slot 19 the width of which is just sufficient to allow the residual jet leaving the cellular material 16 to pass.
  • the water 20 is put in circular motion in the space thus formed in the bottom of the chute upon the impact of the jet 2.
  • the jet thus breaks up on the water put in rotation.
  • the shape of the bottom of the chute and the deflectors makes it possible to avoid the rising of liquid which can alter, the quality of the cut material, in particular when it is a composite material. It also makes it possible to avoid the vibrations of the chute which may arise during the absorption of energy from the jet, due to its symmetry of construction.
  • the circulation of water in the bottom of the chute makes it possible to evacuate the thermal energy of dissipation of the jet.
  • the cutting apparatus makes it possible to absorb the mechanical energy of the jet, to dissipate the thermal energy originating from this absorption and to avoid liquid rising or splashing which could affect the quality of the cut material.
  • a significant noise is produced.
  • the reduction of this noise to an acceptable value for those present is obtained both thanks to the depression created in the upper part of the neck 15 through the orifice 17, thanks to the thickness e of the cellular material 16 and thanks at the height h of the water in the bottom of the chute.
  • a layer 24 of sound-absorbing material such as a plastic material can be placed on the external wall of the chute.
  • the energy recovery system 10 is perfectly suited to recovering a jet which is not never symmetrical due to the dispersion which it undergoes under the effect of the cutting movement which takes place as we have seen along a plane parallel to the direction of movement of the nozzle and perpendicular to the part to be cut.
  • the structure of the device according to the invention is such that the first layer 16b of cellular material can be easily replaced when the latter is damaged.
  • deterioration only occurs after a significant number of hours of cutting, due to the distance d i which separates the cellular material from the material to be cut.
  • the device according to the invention makes it possible, if necessary, to recover the water used for cutting, to reinject it into the circuit of the device after filtration. .

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (8)

1. Hochdruckflüssigkeits-Strahlschneidegerät mit einer einen Fluidstrahl (2) aussendenden Arbeitsdüse (1), einem Werktisch (4), der ein zu schneidendes Material (3) trägt und eine der Arbeitsdüse (1) gegenüberliegende Öffnung (9) und ein Auffangsystem (10) für den Strahl umfasst, welches hinter der Öffnung angeordnet ist und einen Behälter (11) aufweist, auf dessen Boden (12) sich eine relativ kalte Flüssigkeit (20) befindet, mit einer Absorptionseinrichtung für die Strahlenergie, die zwischen dem Tisch (4) und dem Behälter (11) angeordnet ist, dadurch gekennzeichnet, dass das Gerät ferner Mittel zum Bewegen der Arbeitsdüse (1) längs einer gegebenen Schneiderichtung (F,) aufweist, die Öffnung (9) ein Schlitz und der Behälter (11) des Auffangsystems eine Rinne ist, ein wabenförmiges Material (16) am Eingang der Rinne bezüglich des Werktisches zurückgesetzt angeordnet ist, und dass es Mittel aufweist, um einen Unterdruck (P) am Eingang der Rinne zwischen dem Werktisch und dem wabenförmigen Material herzustellen, wobei Ablenkeinrichtungen (18) zwischen dem Boden (12) der Rinne und dem wabenförmigen Material (16) angeordnet sind und zwischen sich einen den Durchgang des Fluidstrahls erlaubenden Schlitz bilden, wobei die von dem Boden (12) der Rinne und den Ablenkeinrichtungen gebildete Gesamtheit einen etwa kreisförmigen Querschnitt ausserhalb des Schlitzes derart aufweist, dass beim Auftreffen des Fluidstrahls eine Flüssigkeitsströmung hervorgerufen wird, wobei ein Aufsteigen der Flüssigkeit zu dem wabenförmigen Material vermieden wird und die Flüssigkeit (20) am Boden der Rinne (11) strömt.
2. Gerät nach Anspruch 1, dadurch gekennzeichnet, dass die Rinne (11) von einem schalldämpfenden Material (24) umgeben ist.
3. Gerät nach Anspruch 1 oder 2, dadurch ge-kennzeichnet, dass der Boden (12) der Rinne in Schneiderichtung (F,) etwas geneigt ist, um eine Strömung der Flüssigkeit (20) sicherzustellen.
4. Gerät nach einem der Ansprüche 1-3, dadurch gekennzeichnet, dass die Mittel zum Hersteller! des Unterdrucks (P) regelbar sind.
5. Gerät nach einem der Ansprüche 1-4, dadurch gekennzeichnet, dass es einen endlosen, flexiblen Teppich (5) aufweist, der auf Rollen (6,7) derart angebracht ist, dass zwei ebene Abschnitte gebildet werden, die in der gleichen Ebene angeordnet sind und mit einem Abschnitt in der Form einer Schteife (8) verbunden sind, wobei die ebenen Abschnitte den Werktisch (4) bestimmen, während das Auffangsystem für den Strahl in dem Absehnitt in der Form einer Schleife angeordnet ist.
6. Gerät nach Anspruch 5, dadurch gekennzeichnet, dass wenigstens eine der Rollen mit Antriebsmitteln verbunden ist, die die Bewegung des Teppichs längs einer Vorschubrichtung (F2) des zu schneidenden Materials (3) senkrecht zu der Schneiderichtung (Fi) ermöglicht.
7. Gerät nach Anspruch 5, dadurch gekennzeichnet, dass die Düse (1), das Auffangsystem (10) und die Rollen (7) eng verbunden sind und eine Gesamtheit bilden, die sich längs einer Vorschubrichtung (Fz) senkrecht zu der Richtung (Fi) in bezug auf den festen, flexiblen Teppich (5) bewegt, der das zu schneidende Material trägt.
8. Gerät nach einem der Ansprüche 1-7, dadurch gekennzeichnet, dass sich der Schlitz (9) bei dem Auffangsystem für den Strahl (10) fortwährend der Düse (1) gegenüberliegend befindet, wie auch immer die relativen Bewegungen der verschiedenen Teile des Gerätes sind.
EP83401987A 1982-10-19 1983-10-12 Hochdruckflüssigkeitsstrahlschneidegerät Expired EP0107573B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8217473A FR2534516B1 (fr) 1982-10-19 1982-10-19 Appareil de decoupe par jet de fluide haute pression
FR8217473 1982-10-19

Publications (2)

Publication Number Publication Date
EP0107573A1 EP0107573A1 (de) 1984-05-02
EP0107573B1 true EP0107573B1 (de) 1987-01-07

Family

ID=9278387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83401987A Expired EP0107573B1 (de) 1982-10-19 1983-10-12 Hochdruckflüssigkeitsstrahlschneidegerät

Country Status (4)

Country Link
US (1) US4501182A (de)
EP (1) EP0107573B1 (de)
DE (1) DE3368887D1 (de)
FR (1) FR2534516B1 (de)

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FR2553330B1 (fr) * 1983-10-17 1988-04-22 Aerospatiale Machine de decoupe de matiere en bande par jet fluide haute pression
DE3339320C2 (de) * 1983-10-29 1986-10-16 VEGLA Vereinigte Glaswerke GmbH, 5100 Aachen Verfahren zur Herstellung einer Verbundglasscheibe
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JPS63232999A (ja) * 1987-03-20 1988-09-28 北川工業株式会社 裁断装置
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US4790224A (en) * 1987-08-20 1988-12-13 Belcan Corporation Travelling gap conveyor cutting method and apparatus
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FR2649925B1 (fr) * 1989-07-18 1993-12-10 Aerospatiale Ste Nationale Indle Receptacle de jet de coupe pour une machine de decoupage par jet fluide
US5349788A (en) * 1992-10-17 1994-09-27 Saechsishe Werkzeug Und Sondermaschinen Gmbh Apparatus for catching residual water jet in water jet cutting apparatus
DE4235090C2 (de) * 1992-10-17 1998-09-03 Saechsische Werkzeug Und Sonde Flächenüberstreichender Liniencatcher (Fangeinrichtung) für eine Fluidstrahlschneidanlage
DE4235091C2 (de) * 1992-10-17 2001-09-06 Trumpf Sachsen Gmbh Flüssigkeits- und Abrasivmittelzuführung für eine Fluidstrahlschneidanlage
FR2713130B1 (fr) * 1993-12-06 1996-03-01 Isin Machine de découpe à dispositif de support de la matière en cours de découpe, notamment pour la découpe par jet d'eau.
US5831224A (en) * 1995-04-07 1998-11-03 Design Systems, Inc. Noise reduction system for fluid cutting jets
IT1288656B1 (it) * 1996-09-13 1998-09-23 For El Base Di Vianello Fortun Procedimento per il taglio di lastre di vetro e di lastre di vetro stratificato non blindato
IT1288675B1 (it) * 1996-10-17 1998-09-23 For El Base Di Vianello Fortun Procedimento e macchina automatici per il taglio delle lastre di vetro stratificato e blindato
US5980372A (en) * 1997-11-25 1999-11-09 The Boeing Company Compact catcher for abrasive waterjets
EP0983827A1 (de) * 1998-08-31 2000-03-08 Bystronic Laser AG Wasserstrahl-Schneideanlage
GB9821024D0 (en) * 1998-09-29 1998-11-18 British Nuclear Fuels Plc Improvements in and relating to fluid jet cutting
AT407742B (de) * 1999-12-23 2001-05-25 Lisec Peter Verfahren und vorrichtung zum schneiden von glasscheiben
RU2170661C1 (ru) * 2000-05-29 2001-07-20 Орловский государственный технический университет Установка для раскроя текстильных материалов сверхзвуковой струей жидкости
CA2370242A1 (en) 2001-03-07 2002-09-07 Dieter H. Hilker Water jet edge cutter with integral trim chute
US20040043704A1 (en) * 2002-08-30 2004-03-04 Mark Saberton Method and apparatus for high speed cutting
US20060180579A1 (en) * 2005-02-11 2006-08-17 Towa Intercon Technology, Inc. Multidirectional cutting chuck
EP1926569B1 (de) * 2005-09-06 2009-02-25 Trumpf Werkzeugmaschinen GmbH + Co. KG Vorrichtung zur aufnahme von plattenförmigen materialien für zumindest einen trennvorgang
ES2372727T3 (es) * 2008-01-10 2012-01-25 Alstom Technology Ltd Dispositivo de recogida móvil para el chorro de agua de alta presión de una herramienta de chorro de agua así como procedimiento para hacerlo funcionar.
EP2636495A1 (de) * 2012-03-08 2013-09-11 Marel Iceland EHF Schneidevorrichtung zum Schneiden von Lebensmittelartikeln, die auf einer Förderanlage mit mindestens einem Förderband befördert werden, sowie eine solche Vorrichtung enthaltendes System zur Behandlung von Nahrungsmitteln
NL2011299C2 (en) * 2013-08-13 2015-02-16 Bruijne Delden Holding B V De Transport apparatus and cutting device.
ITVE20130063A1 (it) * 2013-12-02 2015-06-03 Dallan Spa Apparecchiatura per la movimentazione di un nastro o foglio di lamiera sottoposto a taglio laser.-
DE102015003690B4 (de) * 2015-03-24 2017-01-12 Capex Invest GmbH Wasserstrahlschneidevorrichtung und Schneideverfahren
ES2734498B2 (es) * 2018-05-07 2021-12-16 Goiti S Coop Maquina para corte de laminas por proyeccion de fluidos
US11518058B2 (en) * 2019-12-16 2022-12-06 Nienstedt Gmbh Collecting and discharging device for the cutting jet of a liquid cutting system

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Also Published As

Publication number Publication date
FR2534516A1 (fr) 1984-04-20
DE3368887D1 (en) 1987-02-12
FR2534516B1 (fr) 1986-08-08
EP0107573A1 (de) 1984-05-02
US4501182A (en) 1985-02-26

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