WO1999042242A1 - Traitement d'ardoise par laser - Google Patents

Traitement d'ardoise par laser Download PDF

Info

Publication number
WO1999042242A1
WO1999042242A1 PCT/ES1999/000042 ES9900042W WO9942242A1 WO 1999042242 A1 WO1999042242 A1 WO 1999042242A1 ES 9900042 W ES9900042 W ES 9900042W WO 9942242 A1 WO9942242 A1 WO 9942242A1
Authority
WO
WIPO (PCT)
Prior art keywords
slate
laser
piece
type
shape
Prior art date
Application number
PCT/ES1999/000042
Other languages
English (en)
Spanish (es)
Inventor
Juan María POU SARACHO
Fernando LUSQUIÑOS RODRIGUEZ
Mohamed Boutinguiza Sidahmed-Larosi
Ramón Francisco SOTO COSTAS
Mariano Jesús PEREZ-MARTINEZ Y PEREZ-AMOR
Original Assignee
Universidad De Vigo
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 Universidad De Vigo filed Critical Universidad De Vigo
Priority to AU29350/99A priority Critical patent/AU2935099A/en
Publication of WO1999042242A1 publication Critical patent/WO1999042242A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/32—Methods and apparatus specially adapted for working materials which can easily be split, e.g. mica, slate, schist
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/40—Removing material taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • B28D1/221—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising by thermic methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26

Definitions

  • the present invention relates to the treatment of slate by means of the application of laser radiation, such that natural slate plates can be cut, perforated, marked or superficially modified.
  • This invention provides a method for cutting, drilling, marking or modifying the surface of slate plates such as those commonly used for roofs or pavements.
  • Slates are rocks, usually of fine grain, whose main property is the possession of highly developed foliage planes. This allows, through manual processes of cleft or spoliation in favor of these planes, smooth face plates can be obtained with the possibility of varying their thickness.
  • this patent has the advantage of being able to drill a wide variety of diameters, from a few tens of micrometers. practically impossible thing by mechanical methods.
  • Another of the advantages presented by the invention object of the present patent is the fact that the processing is carried out without contact with the part, so that, in no case is it subjected to mechanical solicitations during the laser treatment process, which It is inherent in mechanical processes. In addition, as no contact is established between the part and the tool, it does not suffer wear or corrosion, so it is not necessary to sharpen or replace it.
  • the method of processing slate by laser object of the present patent is to subject the slate piece to the action of laser radiation.
  • the treatment with the laser beam will preferably be carried out once the board has been spilled to the desired thickness.
  • the processing of slate by laser object of the invention is carried out in a suitable system of which an example is shown in Figure 1.
  • This method basically consists of the following: the slate piece (8) to be treated, it is placed on a support appropriate to its dimensions in a mobile system (9).
  • This system will be connected to a system of automatic control of the position of the piece, which, being commonly used in industrial equipment, is not shown in the figure.
  • the laser beam (1) is conducted by means of a refrigerated mirror (2) and a protective tube (3) towards the slate piece (8).
  • the laser beam (1) is focused by means of a lens (5).
  • This lens (5) will be made in such a way and in a material that allows the transmission of the energy of the laser beam (1). Once focused, the laser beam (1) is led to the workpiece (8) through a nozzle (7).
  • a protective window (6) is used. Waste from the laser treatment is collected by a suitable collector (10). When the treatment requires the contribution of some gas, it is introduced through the entry of gases (4).
  • SUBSTITUTE SHEET (RULE 26)
  • perforation there is no relative movement between the laser beam and the slate piece.
  • the cutting of slate plates is done by moving the plate well in front of the laser beam or the laser beam in relation to the slate plate. It is necessary to use a gas that removes molten material so that it does not resolve by closing the area treated by the laser beam again.
  • slate plates of any thickness are marked by means of an Nd: YAG laser ( ⁇ • **** - 1,064 nm) working in pulsed mode at a frequency of 30Hz, with a width of 0.5 ms pulse, with nitrogen gas at a pressure of 4x10 * 5 Pa and with a power of 70 W. Under these conditions, slate pieces were marked at a speed of 30 mm / s.
  • the described method supposes a considerable improvement in the working conditions of the operator who must process the slate plates, eliminating, to a large extent, the acoustic and environmental contaminants that are suffered during the processing of the slate plates by traditional methods.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

L'invention concerne des plaques ou pièces d'ardoise pouvant être coupées, perforées, marquées ou traitées superficiellement au moyen d'un procédé fondé sur l'exposition à un faisceau laser. La grande flexibilité de ce procédé permet d'appliquer différents types de processus sur la pierre d'ardoise sans avoir à changer de matériel ou d'outil, il suffit simplement de modifier les paramètres de traitement. Ce procédé est caractérisé en ce qu'il apporte une amélioration sensible aux conditions de travail de l'ouvrier qui doit traiter les plaques d'ardoise lors de l'élaboration, entre autres, d'ardoises pour toits ou planchers.
PCT/ES1999/000042 1998-02-19 1999-02-18 Traitement d'ardoise par laser WO1999042242A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU29350/99A AU2935099A (en) 1998-02-19 1999-02-18 Treatment of slate by means of a laser

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP9800391 1998-02-19
ES009800391A ES2142268B1 (es) 1998-02-19 1998-02-19 Procesamiento de pizarra mediante laser.

Publications (1)

Publication Number Publication Date
WO1999042242A1 true WO1999042242A1 (fr) 1999-08-26

Family

ID=8302889

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1999/000042 WO1999042242A1 (fr) 1998-02-19 1999-02-18 Traitement d'ardoise par laser

Country Status (3)

Country Link
AU (1) AU2935099A (fr)
ES (1) ES2142268B1 (fr)
WO (1) WO1999042242A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1273410A1 (fr) * 2001-07-06 2003-01-08 Universidade de Vigo Procédé de traitement au laser pour le surface des plaques en granit ou similaires

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2263321B1 (es) * 2004-02-04 2007-11-01 Yesyforma Europa, S.A. Procedimiento de marcado de una placa de escayola para techo y placa asi obtenida.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541929A1 (fr) * 1983-03-02 1984-09-07 Lepiouffle Georges Dispositif servant a decouper les ardoises naturelles ou artificielles de toutes matieres et de toutes formes
US4797532A (en) * 1986-03-26 1989-01-10 Maiorov Vladimir S Apparatus for laser treatment of materials
GB2256612A (en) * 1991-06-11 1992-12-16 Burlington Slate Limited Splitting of slabs or blocks
US5227607A (en) * 1990-07-31 1993-07-13 Mid Co., Ltd. Yag laser working machine for precision working of thin-film
EP0554523A1 (fr) * 1992-02-03 1993-08-11 Matsushita Electric Industrial Co., Ltd. Appareil d'usinage laser et méthode de réglage de la hauteur de la lentille-condenseur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541929A1 (fr) * 1983-03-02 1984-09-07 Lepiouffle Georges Dispositif servant a decouper les ardoises naturelles ou artificielles de toutes matieres et de toutes formes
US4797532A (en) * 1986-03-26 1989-01-10 Maiorov Vladimir S Apparatus for laser treatment of materials
US5227607A (en) * 1990-07-31 1993-07-13 Mid Co., Ltd. Yag laser working machine for precision working of thin-film
GB2256612A (en) * 1991-06-11 1992-12-16 Burlington Slate Limited Splitting of slabs or blocks
EP0554523A1 (fr) * 1992-02-03 1993-08-11 Matsushita Electric Industrial Co., Ltd. Appareil d'usinage laser et méthode de réglage de la hauteur de la lentille-condenseur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1273410A1 (fr) * 2001-07-06 2003-01-08 Universidade de Vigo Procédé de traitement au laser pour le surface des plaques en granit ou similaires

Also Published As

Publication number Publication date
ES2142268B1 (es) 2000-11-16
ES2142268A1 (es) 2000-04-01
AU2935099A (en) 1999-09-06

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