EP3862135A1 - Tube de focalisation et son utilisation - Google Patents

Tube de focalisation et son utilisation Download PDF

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Publication number
EP3862135A1
EP3862135A1 EP20156341.8A EP20156341A EP3862135A1 EP 3862135 A1 EP3862135 A1 EP 3862135A1 EP 20156341 A EP20156341 A EP 20156341A EP 3862135 A1 EP3862135 A1 EP 3862135A1
Authority
EP
European Patent Office
Prior art keywords
focusing
channel section
longitudinal axis
inlet
tube
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.)
Withdrawn
Application number
EP20156341.8A
Other languages
German (de)
English (en)
Inventor
Mathieu Schellenberger
Gabriele Pozzetti
Michael DRÖSCHEL
Michael Magin
Philippe Da Cunha Alves
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.)
Ceratizit Luxembourg SARL
Original Assignee
Ceratizit Luxembourg SARL
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 Ceratizit Luxembourg SARL filed Critical Ceratizit Luxembourg SARL
Priority to EP20156341.8A priority Critical patent/EP3862135A1/fr
Priority to CN202180012293.3A priority patent/CN115066317B/zh
Priority to EP21701333.3A priority patent/EP4103355A1/fr
Priority to PCT/EP2021/051830 priority patent/WO2021160432A1/fr
Priority to US17/798,636 priority patent/US20230150089A1/en
Priority to TW110104238A priority patent/TWI778514B/zh
Publication of EP3862135A1 publication Critical patent/EP3862135A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • B24C5/04—Nozzles therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
    • B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting

Definitions

  • the present invention relates to a focusing tube which is designed to focus a liquid jet containing abrasive particles and which is under high pressure, having a focusing channel section, an outlet opening for the free exit of the liquid jet from the focusing channel section and a longitudinal axis of the focusing channel section containing the center point of the outlet opening, the focusing channel section is bounded by a liquid-impermeable channel wall and tapers at a focusing tapering angle in the direction of the outlet opening, the legs of the focusing tapering angle being two tangents which lie in a longitudinal sectional plane containing the longitudinal axis and lie against two inner surface points of the duct wall opposite in the longitudinal sectional plane.
  • the present invention also relates to a use of such a focusing tube.
  • the present invention is in the field of jet cutting, for example water jet cutting, of workpieces.
  • the cutting process takes place with the high pressure liquid jet, in that it emerges from the outlet opening and strikes a workpiece.
  • the focusing channel section provides the required acceleration of the liquid jet and thus the abrasive particles because it narrows the high pressure liquid jet.
  • the liquid jet is accelerated to at least 400 m / s.
  • the liquid jet usually has a pressure of at least about 1000 bar when it enters the focusing channel section.
  • the abrasive particles for example garnet particles, corundum particles or quartz sand particles, considerably increase the cutting performance of the liquid jet, so that even relatively hard materials such as rocks and metals can be cut.
  • the abrasive particles lead to increased closure of the focusing tube in the area of the focusing channel section because, at the high pressures present, they impact the channel wall with high energy. as As a result, the focusing channel section expands and thus increasingly loses its focusing effect. The service life of the focusing tube is consequently reduced.
  • the WO 03/053634 A1 taught that the channel wall of the focusing tube is to be provided with a lubricating film.
  • the object of the present invention is therefore to provide a focusing tube of the type mentioned at the beginning and a use thereof which achieve an increase in service life in a structurally simple manner.
  • the focusing tube which is designed to focus a liquid jet containing abrasive particles and under high pressure, has a focusing channel section, an outlet opening for the free exit of the liquid jet from the focusing channel section and a longitudinal axis of the focusing channel section containing the center point of the outlet opening, the focusing channel section being liquid-impermeable Channel wall is limited and tapers at a focusing tapering angle in the direction of the exit opening, the legs of the focusing tapering angle are two tangents which lie in a longitudinal sectional plane containing the longitudinal axis and lie on two opposite inner surface points of the duct wall in the longitudinal sectional plane, the focusing taper in the range of 0.05 ° to 1 °.
  • high pressure means a pressure of the liquid jet upon entry into the focusing channel section of at least about 1000 bar up to about 6000 bar or more.
  • the channel wall must be designed to be stable, for example by the channel wall being sufficiently thick and made of a hard metal ( cemented carbide ) or cermet.
  • hard metal (cemented carbide) and cermet are each composite materials in which hard material particles, which make up the predominant component of the composite material, form a skeletal structure, the spaces between which are filled by a more ductile metallic binder.
  • the hard material particles can in particular be formed at least predominantly by tungsten carbide, titanium carbide and / or titanium carbonitride, with additional z.
  • other hard material particles in particular carbides of the elements of groups IV to VI of the periodic table, may be present.
  • the ductile metallic binder usually consists at least predominantly of cobalt, nickel, iron or a base alloy of at least one of these elements. However, other elements can also be dissolved in the metallic binder in smaller quantities.
  • a base alloy is understood to mean that this element forms the predominant component of the alloy.
  • hard metal cemented carbide
  • the hard material particles are at least predominantly formed by tungsten carbide and the metallic binder is a cobalt or cobalt-nickel-based alloy; the proportion by weight of the corresponding tungsten carbide particles is in particular at least 70 percent by weight, preferably at least 80 percent by weight, more preferably at least 90 percent by weight.
  • the free exit means that the liquid jet can exit the exit opening unhindered.
  • the outlet opening can be an outer outlet opening of the focusing tube or an inner outlet opening of the focusing tube.
  • An outer outlet opening is formed in that the channel wall, viewed in the flow direction of the liquid jet, ends immediately behind the outlet opening. The exit opening is then, for example, in a flat end face of the focusing tube.
  • An inner outlet opening is formed in that an overhang formed by the channel wall extends from the outlet opening when viewed in the flow direction of the liquid jet.
  • the overhang can be, for example, a chamfer or rounding of the duct wall.
  • the chamfer can, for example, be conical.
  • the liquid jet can be a water jet, but other liquid jets that are more viscous are also conceivable and possible.
  • the water jet usually also contains air, so that a mixture of water, air and the abrasive particles is formed.
  • the abrasive particles can be garnet particles, corundum particles or quartz sand particles, for example.
  • the center point is the center of gravity of a flat surface defined by an edge curve of the outlet opening.
  • the outlet opening or the edge curve can have any desired symmetrical or asymmetrical shape.
  • the center point is the center of the corresponding circle; Rectangle and, in the case of an elliptical or essentially elliptical shape, the point of intersection of the major axis with the minor axis of the corresponding ellipse.
  • essentially square and rectangular means that one or more corners are rounded.
  • the outlet opening can, however, also be egg-shaped, kidney-shaped, triangular or essentially triangular. in the Substantially triangular means, for example, that one or more corners are rounded.
  • the longitudinal axis is arranged parallel to the extent of the focusing channel section. In that it contains the center of the exit opening, it penetrates the interior of the focusing channel section. If the focusing channel section is designed to be rotationally symmetrical with respect to its longitudinal axis, the longitudinal axis can also be referred to as the central axis.
  • the focusing channel section can in particular extend from the exit opening at the focusing taper angle.
  • the liquid-impermeable channel wall means that the channel wall is impermeable to liquid entering from the outside through the channel wall and liquid exiting from the inside through the channel wall, for example by being made of a completely or almost completely sintered material, for example a hard metal (cemented carbide ) or cermet.
  • the focusing channel section tapers in the direction of the outlet opening, it and thus the liquid jet become narrower in this direction.
  • the longitudinal section plane contains the longitudinal axis and intersects an inner surface of the channel wall, so that the longitudinal section plane contains two cutting lines which are to be assigned to the inner surface and thus to the course of the focusing channel section in the longitudinal section plane.
  • the points lying opposite in the longitudinal section plane are consequently contained in the section lines.
  • One or both of the cutting lines can be straight or curved, for example as sections of a hyperbola or parabola.
  • the tangents include the focus taper angle as an inboard angle.
  • the channel wall can have a discontinuity, for example in the form of an edge. In such a case, the points at which the tangents can be applied are only those which are axially spaced from the outlet opening and the inlet opening.
  • the points lie opposite one another in the longitudinal sectional plane, they are contained in a straight line which is perpendicular to the longitudinal axis of the focusing channel section and lies in the longitudinal sectional plane.
  • the focus taper angle can be constant. This is advantageous because such an angle can be produced in a particularly simple manner, for example by means of an electrical discharge machining process, such as, for example, wire erosion. However, it is also conceivable and also possible for the focusing taper angle to vary.
  • the focusing taper angle is in the range from 0.1 ° to 0.8 °. Since the focusing taper angle is in this range, an even better reduction in wear and tear and a reduction in noise emissions are achieved.
  • the focusing channel section has a maximum diameter of 0.5 mm to 5 mm at each axial position with respect to its longitudinal axis in a cross section to this longitudinal axis. If the maximum diameter is in this range, an even further reduction in wear and noise emissions is surprisingly achieved. If the maximum diameter is in the range from 0.65 mm to 3.5 mm, wear and noise emissions are further reduced.
  • the maximum diameter is the inner diameter of the focusing channel section if it is circular in cross section. In the case of other cross-sectional shapes of the focusing channel section, the maximum diameter is determined by the longest chord that can be spanned between two opposing inner surface points of the channel wall.
  • the points are contained in a straight line that is perpendicular to the longitudinal axis of the focusing channel section.
  • the longest chord thus corresponds to the main axis of the ellipse.
  • the focusing channel section can have the shapes described for the exit opening; in particular, the shape of the exit opening is continued in the focusing channel section in cross section.
  • the focusing channel section is also circular in cross section, in the case of an elliptical exit opening it is elliptical, etc.
  • the focusing channel section is designed to be rotationally symmetrical about its longitudinal axis. This is advantageous because such a shape of the focusing channel section can be produced in a particularly simple manner, for example by means of a spark erosion method, such as, for example, wire erosion or die-sinking erosion.
  • the focusing channel section is designed in the shape of a truncated cone. This is advantageous because such a shape of the focusing channel section can be produced in a particularly simple manner, for example by means of a spark erosion method, such as, for example, wire erosion. Such a production becomes even easier if the focusing channel section formed in this way is frustoconical and a circular cone axis defined thereby is aligned with the longitudinal axis of the focusing channel section.
  • the focusing channel section extends over at least 50% of a length of the focusing tube measured parallel to its longitudinal axis.
  • the focusing channel section then essentially makes up the focusing tube in its axial direction, which is advantageous for the wear-reduced focusing of the liquid jet.
  • the wear-reduced focusing is improved even further if the focusing channel section extends over at least 70%, even more preferably over at least 90% of the length of the focusing tube.
  • the focusing tube has an inlet channel section, the inlet channel section extending from an inlet opening for the entry of the liquid jet into the focusing tube to a transfer opening formed jointly with the focusing channel section, having a longitudinal axis containing the center point of the inlet opening and outside of the transfer opening each axial position with respect to its longitudinal axis in a cross section to this longitudinal axis has a maximum diameter which is greater than the maximum diameter of the focusing channel section.
  • the longitudinal axis of the inlet channel section extends analogously to the longitudinal axis of the focusing channel section.
  • the inlet opening can have one of the shapes described for the outlet opening, in particular it can be circular.
  • the maximum diameter of the inlet channel section is defined as an inner diameter or as the longest chord between two opposite points on an inner surface of the channel wall.
  • the transfer opening is an outlet opening of the inlet channel section and at the same time an inlet opening of the focusing channel section.
  • the transfer opening is therefore assigned to the focusing channel section and at the same time to the inlet channel section.
  • a discontinuity in the channel wall can be formed at the transfer opening and the inlet opening, for example in the form of an edge. In such a case, the points at which the tangents can be applied are only those that are axially spaced from the transfer and the inlet opening.
  • the inlet channel section can be designed analogously to the focusing channel section to be frustoconical, in particular frustoconical. However, it is also conceivable and also possible for the inlet channel section to be cylindrical, in particular circular cylindrical.
  • the longitudinal axis of the focusing channel section and the longitudinal axis of the inlet channel section are arranged coaxially to one another. Due to this coaxial arrangement, the liquid jet can enter the focusing channel section via the transfer opening without deflection. The wear otherwise associated with a deflection is therefore avoided.
  • the inlet channel section is delimited by the liquid-impermeable channel wall, tapers in the direction of the transfer opening and extends at an inlet taper angle, the legs of the inlet taper angle being two tangents which lie in a longitudinal sectional plane containing the longitudinal axis of the inlet channel section and at two in this longitudinal sectional plane lying opposite inner surface points of the duct wall, wherein the inlet taper angle outside the Transfer opening is larger than the focus taper angle.
  • the inlet taper angle is defined analogously to the focusing taper angle.
  • the inlet taper angle is in the range from 10 ° to 90 °. This leads to an even better flow calming of the liquid jet.
  • the inlet taper angle is in the range from 27 ° to 37 °, which further improves the flow calming.
  • the inlet channel section merges step-free into the transfer opening. This reduces the closure in the area of the transfer opening because the impact energy of the abrasive particles is reduced compared to a step-shaped transition from the inlet channel section to the focusing channel section.
  • a length of the focusing channel section measured parallel to the longitudinal axis of the focusing channel section is at least a factor of five, preferably at least a factor of ten, even more preferably at least a factor of twenty, greater than a length of the inlet channel section measured parallel to the longitudinal axis of the inlet channel section.
  • the focusing tube according to one of Claims 1 to 14 is used for cutting a workpiece by the liquid jet containing abrasive particles flowing through the focusing channel section.
  • the jet of liquid can be a jet of water.
  • the abrasive particles can be, for example, garnet particles, corundum particles or quartz sand particles.
  • the pressure of the liquid jet on entry into the focusing channel section can be in the range from 1000 bar to 6000 bar or more.
  • the jet of liquid can be a jet of water.
  • the water jet usually also contains air, so that a mixture of water, air and the abrasive particles is formed.
  • the focusing tube can be formed from a hard metal (cemented carbide) or cermet.
  • the workpiece can be formed from a metal.
  • FIGS. 1 and 2 show schematically a focusing tube 1 according to a first embodiment. Based on the longitudinal section Fig. 1 it becomes clear how the focusing taper angle is to be determined in the sense of the present disclosure.
  • the focusing taper angle 2 has two legs that are in Fig. 1 are provided with the reference numerals 3 and 4.
  • the focusing taper angle 2 is in the range from 0.05 ° to 1 ° and was only shown in FIG Fig. 1 drawn larger.
  • the legs 3 and 4 lie in a longitudinal section plane 5, which corresponds to the plane of the drawing Fig. 1 coincides.
  • the longitudinal sectional plane 5 contains a longitudinal axis 6.
  • the longitudinal axis 6 contains a center point 7 of an outlet opening 8, like that from a synopsis of FIG FIGS. 1 and 2 can be seen. Since the outlet opening 8 is circular, the center point 7 is the center of a corresponding circle.
  • the longitudinal axis 6 extends in the direction of a focusing channel section 9, which is delimited by a channel wall 11 and extends from the outlet opening 8 into the interior of the focusing tube 1, as in this case Fig. 1 indicates.
  • the focusing channel section 9 tapers towards the outlet opening 8, so that a water jet, which contains abrasive particles and is under high pressure of at least 1000 bar, is focused on the diameter of the outlet opening 8 when it flows through the focusing channel section 9 in the direction of the outlet opening 8 and is thus focused emerges freely from the outlet opening 8.
  • the longitudinal sectional plane 5 also contains two points 3a and 4a, which are to be assigned to an inner surface 10 of the duct wall 11 and are connected in the longitudinal sectional plane 5 by a straight line 12 which is perpendicular to the longitudinal axis 6.
  • the legs 3 and 4 are tangents which lie at the points 3a and 4a.
  • the focusing channel section 9 is designed in the shape of a truncated circular cone.
  • the cutting lines belonging to the inner surface 10 are therefore straight and coincide with the legs or tangents 3 and 4.
  • the focusing channel section 9 it is also conceivable and also possible for the focusing channel section 9 to have a different shape, so that the cutting lines would be curved convex inwardly, for example.
  • FIGS 3 to 5 show a focusing tube 1 'according to a second embodiment.
  • the focusing tube 1 ' is constructed analogously to the focusing tube 1.
  • the focusing tube 1 ' has a focusing channel section 9' which extends from an exit opening 8 'into the interior of the focusing tube 1' parallel to a Longitudinal axis 6 'extends, tapers in the direction of the outlet opening 8' and is delimited by a channel wall 11 '.
  • the channel wall 11 ' consists of a sintered hard metal (cemented carbide). The channel wall 11 'is therefore impermeable to liquids.
  • the longitudinal axis 6 ' contains the center point 8a' of the outlet opening 8 '.
  • the longitudinal axis 6 'and thus the center 8' are contained in a longitudinal sectional plane 5 'which, with respect to the Figs. 1 and 2 described longitudinal sectional plane 5 is positioned analogously.
  • the focusing tube 1 Compared to the focusing tube 1, the focusing tube 1 'additionally has an inlet channel section 13' which extends from an inlet opening 14 'into the interior of the focusing tube 1' and tapers in the direction of a transfer opening 15 '.
  • the transfer opening 15 ' is an inner opening of the focusing tube 1' which is formed jointly with the focusing channel section 9 '.
  • the transfer opening 15 ' can be referred to as an outlet opening 15' of the inlet channel section 13 'and at the same time as an inlet opening 15' of the focusing channel section 9 '.
  • the focusing channel section 9 ' has a focusing taper angle 2'.
  • the focusing taper angle 2 ' is 0.18 ° by way of example. But others are also conceivable and possible Focusing taper angle 2 'from the range from 0.05 ° to 1 °.
  • the focusing taper angle 2 ' has two legs 3' and 4 '.
  • the legs 3 'and 4' are tangents which lie in the longitudinal sectional plane 5 '.
  • the two legs 3 'and 4' or the tangents 3 'and 4' rest on two opposite points 3a 'and 4a' of an inner surface 10 'of the duct wall 11' in the longitudinal sectional plane 5 '.
  • the focusing taper angle 2 ' is constant because the focusing channel section 9' is designed to be frustoconical and rotationally symmetrical about the longitudinal axis 6 '.
  • the inlet channel section 13 ' has an inlet taper angle 16' that is defined analogously to the focusing taper angles 2 and 2 '.
  • the inlet taper angle 16 ' has two legs 17' and 18 'which lie in the longitudinal sectional plane 5' because the focusing channel section 9 'and the inlet channel section 13' are arranged coaxially to one another.
  • the legs 17 'and 18' or the tangents 17 'and 18' lie in two opposite points 17a 'and 18a' in the longitudinal sectional plane 5 'on an inner surface 19' of the duct wall 11 '.
  • the inlet channel section 13 ' has a longitudinal axis 6' which coincides with the longitudinal axis 6 'of the focusing channel section 9'.
  • the inlet taper angle is 35 °. However, other inlet taper angles from the range from 10 ° to 90 ° are also conceivable and also possible.
  • FIG. 6 shows the percentage increase in the diameter of an outlet opening, denoted as r, of a focusing tube Exp. and a focusing tube Ref. used as a reference, each as a function of the operating hours h.
  • the focusing tube Exp. And the focusing tube Ref. Were both flowed through in the area of their focusing channel section with a water jet containing abrasive particles at 6000 bar with constant jet parameters.
  • the focusing channel section was designed to be tapered analogously to the focusing channel section 9 'at a focusing taper angle of 0.18 ° in the direction of the exit opening.
  • the focus channel section had a constant one Inner diameter, i.e. no tapering in the direction of the outlet opening.
  • the focusing tubes Exp. And Ref. Do not differ from one another.
  • the focussing taper angle of 0.18 ° selected as an example for the range from 0.05 ° to 1 ° ensures that the wear on the focusing tube Exp. is significantly less than the wear on the focusing tube Ref after an operating time of 40 h
  • the diameter of the outlet opening of the focusing tube Exp. Has increased by about 16% after 100 operating hours, whereas the diameter of the outlet opening of the focusing tube Ref. Has increased by about 26% after 100 operating hours.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Cyclones (AREA)
  • Nozzles (AREA)
  • Materials For Medical Uses (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Prostheses (AREA)
EP20156341.8A 2020-02-10 2020-02-10 Tube de focalisation et son utilisation Withdrawn EP3862135A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP20156341.8A EP3862135A1 (fr) 2020-02-10 2020-02-10 Tube de focalisation et son utilisation
CN202180012293.3A CN115066317B (zh) 2020-02-10 2021-01-27 聚集管及其用途
EP21701333.3A EP4103355A1 (fr) 2020-02-10 2021-01-27 Tube de focalisation et son utilisation
PCT/EP2021/051830 WO2021160432A1 (fr) 2020-02-10 2021-01-27 Tube de focalisation et son utilisation
US17/798,636 US20230150089A1 (en) 2020-02-10 2021-01-27 Focusing tube, and use thereof
TW110104238A TWI778514B (zh) 2020-02-10 2021-02-04 聚焦管及其用途

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20156341.8A EP3862135A1 (fr) 2020-02-10 2020-02-10 Tube de focalisation et son utilisation

Publications (1)

Publication Number Publication Date
EP3862135A1 true EP3862135A1 (fr) 2021-08-11

Family

ID=69570516

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20156341.8A Withdrawn EP3862135A1 (fr) 2020-02-10 2020-02-10 Tube de focalisation et son utilisation
EP21701333.3A Pending EP4103355A1 (fr) 2020-02-10 2021-01-27 Tube de focalisation et son utilisation

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP21701333.3A Pending EP4103355A1 (fr) 2020-02-10 2021-01-27 Tube de focalisation et son utilisation

Country Status (5)

Country Link
US (1) US20230150089A1 (fr)
EP (2) EP3862135A1 (fr)
CN (1) CN115066317B (fr)
TW (1) TWI778514B (fr)
WO (1) WO2021160432A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114714261B (zh) * 2022-04-15 2022-12-27 江南大学 一种强化用磨料水射流喷嘴

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US5018317A (en) * 1986-02-20 1991-05-28 Kawasaki Jukogyo Kabushiki Kaisha Abrasive water jet cutting apparatus
WO2003053634A1 (fr) 2001-12-06 2003-07-03 The Johns Hopkins University Tube melangeur poreux et lubrifie pour jet de liquide abrasif
US20050156064A1 (en) * 2002-12-25 2005-07-21 Akihiko Tanigaki Descaling nozzle
US20080032610A1 (en) * 2006-08-02 2008-02-07 Kmt Waterjet Systems Inc. Cutting head for fluid jet machine with indexing focusing device
US8491355B2 (en) * 2007-08-21 2013-07-23 Abrasive Cutting Technology Ltd. Fluid/abrasive jet cutting arrangement
US20150321316A1 (en) * 2012-10-15 2015-11-12 Inflotek B.V. Nozzle for fine-kerf cutting in an abrasive jet cutting system

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US5860849A (en) * 1997-03-25 1999-01-19 Huffman Corp Liquid abrasive jet focusing tube for making non-perpendicular cuts
DE10246403B4 (de) * 2001-10-05 2008-11-27 Denso Corp., Kariya-shi Verfahren zum Herstellen einer Düsenlochplatte für eine Einspritzdüse und Einspritzdüse mit einer solchen Düsenlochplatte
LU90862B1 (de) * 2001-12-17 2003-06-18 Cerametal Sarl Schlag-oder Hammerbohrer
DE10255502B3 (de) * 2002-11-27 2004-04-29 Frank Dipl.-Ing. Pude Verfahren zur Herstellung eines für eine Vorrichtung zum Strahlschneiden bestimmten Fokussierrohres, sowie Fokussierrohr
GB0522444D0 (en) * 2005-11-03 2005-12-14 Miller Donald S Cutting heads
WO2008032272A2 (fr) * 2006-09-12 2008-03-20 Element Six B.V. Buse à jet d'eau
FR2912946B1 (fr) * 2007-02-28 2009-04-10 Snecma Sa Controle d'alignement pour un systeme de decoupe par jet d'eau
US8448880B2 (en) * 2007-09-18 2013-05-28 Flow International Corporation Apparatus and process for formation of laterally directed fluid jets
FR2943209B1 (fr) * 2009-03-12 2013-03-08 Saint Gobain Ct Recherches Torche a plasma avec injecteur lateral
CH702451A1 (de) * 2009-12-17 2011-06-30 Micromachining Ag Verfahren zum Trennen einer Materialschicht mittels eines Schneidstrahls.
CN102225535A (zh) * 2011-06-16 2011-10-26 西华大学 磨料水射流用准矩形磨料喷嘴
US9808909B2 (en) * 2014-01-20 2017-11-07 Kmt Waterjet Systems Inc. Orifice for a waterjet cutter
GB201401265D0 (en) * 2014-01-26 2014-03-12 Miller Donald S Composite focus tubes
US8859988B1 (en) * 2014-05-30 2014-10-14 Jens Guenter Gaebelein Method for coupling a laser beam into a liquid-jet
CN106392899B (zh) * 2016-09-22 2018-12-14 武汉大学 一种旁通管路加速的后混式磨料射流喷嘴
EP3391996A1 (fr) * 2017-04-21 2018-10-24 Microwaterjet AG Procédé et dispositif de traitement d'une pièce à usiner au moyen d'un jet de liquide abrasif

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5018317A (en) * 1986-02-20 1991-05-28 Kawasaki Jukogyo Kabushiki Kaisha Abrasive water jet cutting apparatus
WO2003053634A1 (fr) 2001-12-06 2003-07-03 The Johns Hopkins University Tube melangeur poreux et lubrifie pour jet de liquide abrasif
US20050156064A1 (en) * 2002-12-25 2005-07-21 Akihiko Tanigaki Descaling nozzle
US20080032610A1 (en) * 2006-08-02 2008-02-07 Kmt Waterjet Systems Inc. Cutting head for fluid jet machine with indexing focusing device
US8491355B2 (en) * 2007-08-21 2013-07-23 Abrasive Cutting Technology Ltd. Fluid/abrasive jet cutting arrangement
US20150321316A1 (en) * 2012-10-15 2015-11-12 Inflotek B.V. Nozzle for fine-kerf cutting in an abrasive jet cutting system

Also Published As

Publication number Publication date
EP4103355A1 (fr) 2022-12-21
US20230150089A1 (en) 2023-05-18
WO2021160432A1 (fr) 2021-08-19
TW202134005A (zh) 2021-09-16
CN115066317B (zh) 2023-09-12
TWI778514B (zh) 2022-09-21
CN115066317A (zh) 2022-09-16

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