EP1618993B9 - Procédé pour meuler et/ou polir des surfaces - Google Patents

Procédé pour meuler et/ou polir des surfaces Download PDF

Info

Publication number
EP1618993B9
EP1618993B9 EP04017335A EP04017335A EP1618993B9 EP 1618993 B9 EP1618993 B9 EP 1618993B9 EP 04017335 A EP04017335 A EP 04017335A EP 04017335 A EP04017335 A EP 04017335A EP 1618993 B9 EP1618993 B9 EP 1618993B9
Authority
EP
European Patent Office
Prior art keywords
liquid
gas
abrasive
grinding
polishing
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.)
Not-in-force
Application number
EP04017335A
Other languages
German (de)
English (en)
Other versions
EP1618993A1 (fr
EP1618993B1 (fr
Inventor
Oliver Dr. Fähnle
Torsten Wons
Wilhelmus Messelink
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.)
Fisba Optik AG
Original Assignee
Fisba Optik AG
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 Fisba Optik AG filed Critical Fisba Optik AG
Priority to AT04017335T priority Critical patent/ATE411139T1/de
Priority to DE502004008271T priority patent/DE502004008271D1/de
Priority to EP04017335A priority patent/EP1618993B9/fr
Priority to US11/186,802 priority patent/US20060019580A1/en
Publication of EP1618993A1 publication Critical patent/EP1618993A1/fr
Priority to US11/775,018 priority patent/US20080261493A1/en
Application granted granted Critical
Publication of EP1618993B1 publication Critical patent/EP1618993B1/fr
Publication of EP1618993B9 publication Critical patent/EP1618993B9/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0084—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a mixture of liquid and gas
    • 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
    • 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
    • B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00—Selection of abrasive materials or additives for abrasive blasts
    • B24C11/005—Selection of abrasive materials or additives for abrasive blasts of additives, e.g. anti-corrosive or disinfecting agents in solid, liquid or gaseous form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier

Definitions

  • the invention relates to a method for removing material during the grinding and / or polishing of surfaces of workpieces according to claim 1.
  • the removal rate of the surface depends on the size of the abrasive particles in the jet. On the other hand, it depends on the energy and thereby the speed of the particles at the time when they hit the surface.
  • the material removal rate per time is considered as the removal rate.
  • the removal rate should be set individually as simply as possible.
  • This object is achieved by a method for removing material during grinding and / or polishing surfaces according to claim 1. It has surprisingly been found that with increasing proportion of gas with the same size of the abrasive grain and the same process parameters (for example delivery pressure), the removal rate is increased. Therefore, when the device is provided with means for adjusting the gas content in the liquid, the rate of removal can be easily controlled or changed. Thanks to the present invention, it is possible to achieve high removal rates with relatively small grain sizes. By setting a high proportion of gas, the removal rate is increased without the need to use larger abrasive grain.
  • the removal rate and also the transition from coarse grinding to fine grinding and polishing can be varied continuously.
  • the grain size of the abrasive grains and the delivery pressure of the abrasive liquid for coarse and fine grinding and for polishing can be the same.
  • the removal rate is easily controlled and changed as needed. It can be worked with the same delivery pressure and with the same abrasive grain. The change from one grain size to another and the associated cleaning of the machine is eliminated.
  • the device for removing material from a surface of a workpiece during grinding or polishing of the surface by means of abrasive particles conveyed by a liquid for this purpose contains a device for adding gas to the liquid.
  • This gas is preferably air because air is inexpensive and does not pollute the environment.
  • gases or gas mixtures for example argon, helium, nitrogen, CO 2 or oxygen, but can also be used and are not excluded from the invention.
  • the gas can be contained either in the form of gas bubbles or in dissolved or bound form in the liquid.
  • the present invention has the advantage that with a device as needed a workpiece can be both ground and polished.
  • Expensive and procedurally delicate steps such as cleaning the workpiece or the device or the transport of the workpiece from one device to another thus eliminated.
  • the advantages of the present invention are particularly advantageous in the grinding and polishing of high precision parts, e.g. Parts of optics or medical technology. Due to the broad applicability of the device and the method, both spherical and aspherical shapes can be precisely ground and polished.
  • the device for adding the gas to the liquid comprises an arrangement for adjusting the amount of added gas. It is advantageous if the amount of gas supplied is continuously variable. This can be used e.g. increase the removal rate by increasing the amount of gas. Reducing the amount of gas leads to smaller removal.
  • the device for adding the gas to the liquid can be arranged, for example, in a tank for the liquid be. It is also conceivable to install the device in a pump for conveying the liquid or in a conveying line for the liquid. Combinations thereof for more efficient and controlled addition of the gas are advantageous.
  • the gas can be added with a propeller in the tank, for example.
  • a pressure connection to the line, the tank or the pump can be provided.
  • chemically oxidize the gas e.g. to be enclosed with tablets.
  • a chemical substance pressed in tablet form can be added to the water, which reacts on contact with water and gives off gaseous reaction products.
  • gas to the water electrolytically or to generate gas electrolytically in the water.
  • the gas content is controlled and adjusted according to the invention. Typically, the amount of gas (in volume percent) is adjusted to desired levels. In this case, the gas can either be dissolved or bound in the liquid or present in the form of bubbles therein.
  • the mixing ratio can be determined by the viscosity of the abrasive fluid. ever the greater the proportion of gas in the liquid, the lower the viscosity.
  • the bubble size may be e.g. be determined optically. In order to have a favorable influence on the removal rate, it is advantageous if the resulting gas bubbles are larger than the abrasive particles.
  • the measurement preferably takes place between a pump for the abrasive fluid and an outlet port for the fluid.
  • the gas content in the liquid controls the removal rate at the surface of the workpiece.
  • the removal rate depends on the impact energy of the abrasive particles.
  • the transition from grinding to polishing surfaces can be directly controlled by the gas content in the abrasive fluid.
  • the transition from grinding to polishing can at the same time correspond to a transition from brittle to ductile removal of material from the surface. (See, eg Appl. Opt. 37, pp. 6771-6773 (1998) )
  • the removal rate is increased by the gas content in the liquid, because the gas inclusions are more compressible on impact than the liquid itself.
  • the abrasive particles are thus braked faster than the impact of the liquid just before the impact.
  • particles that are in a gas bubble are less strongly cooled when hitting the surface than particles that are surrounded by liquid. It is believed that the increased temperature increases the likelihood of cracks forming. As a result, the removal rate is increased, because in the brittle removal of material the erosion is preceded by cracking on the surface.
  • the viscosity of the abrasive liquid decreases.
  • the abrasive fluid is thereby accelerated more. This acceleration increases the impact energy of the abrasive particles.
  • a method according to the preamble of claim 1 is disclosed in document US 5,283,991 described.
  • the inventive method is designed to generate a delivery pressure of less than 100 bar, more preferably less than 50 or even less than 20 bar. Since a gas is added to the liquid, the impact energy of the abrasive particles can be increased. This allows a reduction of the delivery pressure with the same removal rate. Compared to high-pressure arrangements energy is thus saved during conveying, which has an economic and ecological advantage. A further reduction of the delivery pressure can also be achieved by appropriate, suitable arrangements for accelerating the abrasive fluid. So, for example an arrangement for accelerating the abrasive liquid are provided, in which the abrasive liquid is advantageously accelerated to a speed of about 20 m / s. As a result, the abrasive particles receive the necessary energy, so that material is removed. The energy of the particles grows quadratically with the speed of the beam.
  • the acceleration arrangement can have, for example, one or more nozzles.
  • the arrangement for accelerating the abrasive liquid may also include an arrangement for adjusting the distance between at least one exit opening of the liquid and the surface.
  • the acceleration is then adjustable between the at least one outlet opening and the surface as a function of the cross section of a liquid feed opening and the cross section of the gap between the surface and the at least one outlet opening.
  • the arrangement according to EP 1 409 199 be designed.
  • the abrasive particles have an average grain diameter less than 50 microns, preferably 1 to 10 microns ..
  • the grain size varies but depending on the application. The finer the surface to be polished, the finer abrasive particles are used.
  • the delivery liquid is preferably predominantly water.
  • other known liquids are also within the scope of the invention.
  • Other liquids e.g. oil or alcohol based may also be suitable.
  • gas inclusions of a conveying fluid for abrasive particles for influencing the removal rate when removing material of a surface of a workpiece during grinding or polishing of the surface is also within the scope of the invention.
  • the gas is preferably air.
  • the removal rate is influenced by the adjustment of the gas content in the pumped liquid, by adding a gas to the abrasive.
  • a gas is air, but other gases are not excluded from the invention.
  • the abrasive liquid is added to gas from 0 to 70% of the total volume.
  • the greater the amount of added gas the greater the removal rate.
  • To polish the surface little or no gas is added, since during polishing a low removal rate is desired.
  • the reduction of the gas supply is continuous.
  • the transition from grinding to polishing is not discrete.
  • the delivery pressure of the abrasive liquid is kept constant for grinding and polishing at below 100 bar, advantageously below 50 bar, particularly advantageously below 20 bar. This simplifies the process because the delivery pressure of the liquid does not have to be changed if the removal rate is to be varied.
  • FIG. 1 a first embodiment of the invention is shown schematically.
  • a workpiece 2 is located on a holder 10 in a closed container 11.
  • the surface S which is to be ground and polished, is located on the upper side of the workpiece 2.
  • the holder 10 is displaceable along a longitudinal axis and rotatable about a vertical axis. The movement of the holder 10 is indicated by the arrows B.
  • a liquid tank 12 In a liquid tank 12 is a liquid 3, in this example water. To the water 3 are added abrasive particles 5 in a concentration of 10% by weight. There are used abrasive particles 5 of silicon carbide with a particle size of 7 microns in diameter. The abrasive liquid 3 is conveyed by a pump 7 in the direction of the arrows 6 through the delivery line 14. The delivery pressure is 12 bar.
  • the removal of material takes place at room temperature, ie at about 21 ° C instead. Due to the mechanical stress, the abrasive fluid can heat up to approx. 25 ° C, which does not affect the removal rate negatively.
  • the delivery line 14 leads into the interior of the container 11. There, the water 3 is accelerated with a nozzle 9 to about 40 m / s. The nozzle 9 is directed to the surface S, which is moved with the holding device 10 below.
  • a pressure tank 13 In a pressure tank 13 is air 4, which can be introduced via a connecting line 16 in the water 3.
  • the air supply is varied via a valve 8. The greater the desired removal rate, the more air 4 is added to the water 3.
  • the maximum air content in the water 3 is 70% of the total volume.
  • the pressure in the tank 13 is 250 bar.
  • the air 4 is supplied at a pressure of 14 to 50 bar. It is essential here that the supply pressure of the air is greater than the delivery pressure of the water. For polishing, the air supply is prevented or at least reduced.
  • the used water 3 is fed via a drain 15 back into the tank 12.
  • the abrasive particles 5 are thus in a closed circuit, which is indicated by the arrows 6.
  • the material consumption is kept as low as possible.
  • the air supply is calibrated on a reference workpiece (not shown).
  • the removal rate can then be adjusted as needed on the workpiece 2 due to this calibration.
  • FIG. 2 An alternative embodiment of the device 1 is shown in FIG. 2 shown.
  • the abrasive liquid 3 in this embodiment in a closed circuit, which is indicated by the arrows 6.
  • the liquid 3 used is again water.
  • the abrasive liquid 3 exits through a delivery head 17.
  • the acceleration of the water 3 takes place in the gap 18, which is formed between the head 17 and the surface S.
  • the holding device 8 as indicated by the arrows B also displaceable in a vertical direction. The acceleration is greater the smaller the area of the gap compared to the cross-sectional area of the delivery line 14.
  • the ratio of the cross-sectional area of the delivery line to the area of the gap is 10: 1 in this example.
  • the removal rate is controlled by the supply of air 4 in the water 3 in the tank itself.
  • Air 4 is located in the tank 12 above the water 3 and is stirred with a propeller 19 under the water 3.
  • the propeller 19 is driven by an electric motor M. The speed of the motor M determines the amount of air 4 supplied. Since the water 3 is used in a closed circuit, the level of the water 3 is relatively constant. The propeller 19 is large enough in comparison to the water tank 12 that fluctuations in the water level do not adversely affect the amount of air supplied.
  • FIG. 3 shows a device analog FIG. 1 ,
  • a device for reducing the air content in the water 3 in the tank 12 is provided for carrying out a method not according to the invention.
  • the gas content of water may vary due to environmental parameters. In certain cases, it may be desirable or necessary to reduce the gas content to achieve the desired removal rate. This can be the case, for example, if the surface is to be polished particularly finely.
  • ultrasonic transducers 20 are mounted in the tank 12 to reduce the air content in the water. These send out ultrasonic waves 21, which displace the air inclusions in the water 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Cleaning In General (AREA)

Claims (5)

  1. Procédé d'enlèvement de matière, notamment de meulage et/ou de polissage, d'une surface (S) d'une pièce au moyen de particules de substance abrasive (5) qui sont transportées par un liquide (3), la proportion de gaz dans le liquide étant ajustée, le liquide abrasif (3) étant pourvu de gaz (4) à raison de 0 à 70 % du volume,
    caractérisé en ce que
    les particules de substance abrasive (5) présente un diamètre de particule moyen inférieur à 50 µm, de préférence de 1 à 10 µm, et
    en ce qu'une pression de transport du liquide abrasif (3) inférieure à 100 bars, notamment inférieure à 50 bars, est produite.
  2. Procédé selon la revendication 1, caractérisé en ce que pendant une première étape de meulage de la surface (S), on mélange du gaz (4) au liquide abrasif (3) et en ce que dans une deuxième étape de polissage de la surface, on ne mélange pas de gaz (4) au liquide abrasif.
  3. Procédé selon l'une quelconque des revendications précédentes 1 à 2, caractérisé en ce que la pression de transport du liquide abrasif (3) pour le meulage comme pour le polissage est maintenue constante en dessous de 100 bars, notamment en dessous de 50 bars.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'on utilise principalement de l'eau comme liquide (3).
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'on produit dans le liquide (3) des bulles de gaz qui sont plus grosses que les particules de substance abrasive (5).
EP04017335A 2004-07-22 2004-07-22 Procédé pour meuler et/ou polir des surfaces Not-in-force EP1618993B9 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT04017335T ATE411139T1 (de) 2004-07-22 2004-07-22 Verfahren zum schleifen und/oder polieren von oberflächen
DE502004008271T DE502004008271D1 (de) 2004-07-22 2004-07-22 Verfahren zum Schleifen und/oder Polieren von Oberflächen
EP04017335A EP1618993B9 (fr) 2004-07-22 2004-07-22 Procédé pour meuler et/ou polir des surfaces
US11/186,802 US20060019580A1 (en) 2004-07-22 2005-07-22 Apparatus for removing material, use of gas inclusions in an abrasive liquid and process for grinding and/or polishing surfaces
US11/775,018 US20080261493A1 (en) 2004-07-22 2007-07-09 Apparatus for Removing Material, Use of Gas Inclusions in an Abrasive Liquid and Process for Grinding and/or Polishing Surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04017335A EP1618993B9 (fr) 2004-07-22 2004-07-22 Procédé pour meuler et/ou polir des surfaces

Publications (3)

Publication Number Publication Date
EP1618993A1 EP1618993A1 (fr) 2006-01-25
EP1618993B1 EP1618993B1 (fr) 2008-10-15
EP1618993B9 true EP1618993B9 (fr) 2009-03-18

Family

ID=34925871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04017335A Not-in-force EP1618993B9 (fr) 2004-07-22 2004-07-22 Procédé pour meuler et/ou polir des surfaces

Country Status (4)

Country Link
US (2) US20060019580A1 (fr)
EP (1) EP1618993B9 (fr)
AT (1) ATE411139T1 (fr)
DE (1) DE502004008271D1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4787063B2 (ja) * 2005-12-09 2011-10-05 株式会社荏原製作所 研磨装置及び研磨方法
WO2007096973A1 (fr) * 2006-02-23 2007-08-30 Mitsubishi Materials Corporation Dispositif d'alimentation en produit de dressage
DE102006009468A1 (de) * 2006-02-27 2007-08-30 Aequos Endoprothetik Gmbh Verfahren und Vorrichtung zur spanenden Bearbeitung eines Werkstückes
US7749049B2 (en) * 2006-05-25 2010-07-06 Lightmachinery Inc. Submerged fluid jet polishing
CN101422872B (zh) * 2007-10-30 2010-05-26 昆明市凯跃机电塑料有限责任公司 一种气浮式机械抛光方法
WO2009064254A1 (fr) * 2007-11-13 2009-05-22 Khoon Leong Chong Système d'ébavurage par abrasion à liquide sous haute pression et processus associé
KR100965852B1 (ko) * 2008-04-22 2010-06-28 (주)일신오토클레이브 습식 워터젯용 캐치탱크
JP2012222107A (ja) * 2011-04-07 2012-11-12 Toshiba Corp 半導体装置の製造方法
CN103522195A (zh) * 2013-05-07 2014-01-22 河南星智发明电子科技有限公司 一种研磨抛光的方法
US10363648B2 (en) 2016-08-04 2019-07-30 C.J. Spray Apparatus, components, methods and systems for use in selectively texturing concrete surfaces
CN106695576B (zh) * 2017-03-17 2023-08-15 河南理工大学 前混合式脉冲磨料气体射流冲蚀方法及装置
DE102017127934A1 (de) 2017-11-27 2019-05-29 Sumteq Gmbh Pulver aus Schaumstoff
JP7163098B2 (ja) * 2018-08-07 2022-10-31 株式会社富士技建 湿式ブラスト装置および湿式ブラスト方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US844046A (en) * 1904-09-12 1907-02-12 Benjamin M Frees Art of abrading.
US4555872A (en) * 1982-06-11 1985-12-03 Fluidyne Corporation High velocity particulate containing fluid jet process
DE3469145D1 (en) * 1984-08-14 1988-03-10 Johan Szucs Stone and metal cleaning system
US5203698A (en) * 1991-04-25 1993-04-20 Blake Thomas S Wet foam sandblaster
US5283991A (en) * 1992-09-08 1994-02-08 Josef Keizers Sandblasting method and a moist-sand blasting apparatus
US5700181A (en) * 1993-09-24 1997-12-23 Eastman Kodak Company Abrasive-liquid polishing and compensating nozzle
US5827114A (en) * 1996-09-25 1998-10-27 Church & Dwight Co., Inc. Slurry blasting process
DE10113599A1 (de) * 2001-03-20 2002-10-02 Fisba Optik Ag St Gallen Vorrichtung zur abrasiven Bearbeitung von Flächen von optischen Elementen

Also Published As

Publication number Publication date
ATE411139T1 (de) 2008-10-15
US20080261493A1 (en) 2008-10-23
EP1618993A1 (fr) 2006-01-25
US20060019580A1 (en) 2006-01-26
DE502004008271D1 (de) 2008-11-27
EP1618993B1 (fr) 2008-10-15

Similar Documents

Publication Publication Date Title
EP1618993B9 (fr) Procédé pour meuler et/ou polir des surfaces
DE10297131B4 (de) Düse für kohärente Strahlen bei Schleifanwendungen
EP2723508B1 (fr) Dispositif pour le traitement des pieces d'ouvrage
EP3233397B1 (fr) Methode pour la decoupe avec un jet de fluide
EP2308646A1 (fr) Procédé de traitement de pièces usinées à l'aide d'un jet d'eau contenant un agent abrasif sortant d'une buse sous haute pression, installation de jet d'eau destiné à exécuter et à appliquer le procédé
DE4341870B4 (de) Ultrahochdruck-Flachstrahl-Düse
WO2002074489A1 (fr) Dispositif pour l'usinage par abrasion de surfaces d'elements et notamment d'elements ou de pieces optiques
EP3233292B1 (fr) Procédé pour éliminer par jet de liquide le revêtement de surfaces
DE2323558B2 (de) Düse für ein Flüssigkeitsstrahl-Schneidgerät
DE3533340A1 (de) Verfahren zum schneiden von glas unterschiedlicher staerken
EP3609650B1 (fr) Dispositif et procédé pour la rugosification des surfaces de contact de cylindres
EP1618992B1 (fr) Dispositif et procédé de meulage et/ou polissage de surfaces
DE10348805B4 (de) Verfahren zur Erzeugung eines Wasserabrasivstrahls
DE3527923A1 (de) Verfahren und vorrichtung zum verfestigen der wandung einer bohrung durch kugelstrahlen
WO2013079488A2 (fr) Procédé, agent de sablage et dispositif de sablage humide
WO2012059373A1 (fr) Procédé, agent à projeter et dispositif de traitement d'un élément structural
DE202020004003U1 (de) Werkzeugmaschine zur Laserkonditionierung von Schleifwerkzeugen unabhängig von deren Spezifikation
WO2019219716A1 (fr) Dispositif de production d'un jet de fluide haute pression
DE102018207720A1 (de) Vorrichtung zur Erzeugung eines Hochdruck-Fluidstrahls
DE4313704A1 (de) Vorrichtung zum Erzeugen eines mit einem Abrasivmittel versetzten Flüssigkeitsstrahles
EP3391996A1 (fr) Procédé et dispositif de traitement d'une pièce à usiner au moyen d'un jet de liquide abrasif
EP2512737B1 (fr) Procédé et dispositif de nettoyage, d'activation et de prétraitement d'une pièce au moyen de particules de neige carbonique
DE102022119028A1 (de) Unterdruckstrahlmaschine mit Drucklufteinkopplung
DE704322C (de) Verfahren und Vorrichtung zur Behandlung von Stoffen zum Zwecke der Zerkleinerung
DE102022207805A1 (de) Honverfahren, Reinigungseinheit, Reinigungseinrichtung und Honmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20060717

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20061108

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: PROCESS FOR GRINDING AND/OR POLISHING SURFACES

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: HEPP WENGER RYFFEL AG

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502004008271

Country of ref document: DE

Date of ref document: 20081127

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090126

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090316

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090115

26N No opposition filed

Effective date: 20090716

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

BERE Be: lapsed

Owner name: FISBA OPTIK A.G.

Effective date: 20090731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090722

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090722

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090416

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081015

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20160628

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20160711

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20160720

Year of fee payment: 13

Ref country code: DE

Payment date: 20160720

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20160927

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004008271

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20170801

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170722

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170801

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170722

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180201

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170731

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170731