WO1999065638A1 - Appareil d'usinage laser - Google Patents

Appareil d'usinage laser Download PDF

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Publication number
WO1999065638A1
WO1999065638A1 PCT/RU1998/000185 RU9800185W WO9965638A1 WO 1999065638 A1 WO1999065638 A1 WO 1999065638A1 RU 9800185 W RU9800185 W RU 9800185W WO 9965638 A1 WO9965638 A1 WO 9965638A1
Authority
WO
WIPO (PCT)
Prior art keywords
laser
section
output
gas
radiation
Prior art date
Application number
PCT/RU1998/000185
Other languages
English (en)
Russian (ru)
Inventor
Alexandr Mikhailovich Zabelin
Original Assignee
Zakrytoe Aktsionernoe Obschestvo 'tekhnolaser'
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 Zakrytoe Aktsionernoe Obschestvo 'tekhnolaser' filed Critical Zakrytoe Aktsionernoe Obschestvo 'tekhnolaser'
Priority to PCT/RU1998/000185 priority Critical patent/WO1999065638A1/fr
Publication of WO1999065638A1 publication Critical patent/WO1999065638A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • 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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing

Definitions

  • the objective of the invention is to increase the productivity of the laser process due to the increase in the output capacity of the laser beam without any significant inconvenience.
  • the size of the outlet beam is substantially limited.
  • the usual size of the beam along with the flow is chosen so that the beam changes insignificantly when changing the length of the beam transmission system.
  • the minimum dimensions are 15–20 mm and the size of the beam is 60 mm in maximum.
  • the best radiation from laser 3.1 is output through a window of 1.5 elliptical cross-sections.
  • the final radiation 3.1 also has an elliptical cross-section (type ⁇ Fig. 3.1), which is also a normal, but not the same size.
  • a composite lens 4.1 emits radiation after a loss of 4.2; at the same time, the discharge gas is disposed of when there is a discharge from ⁇ ⁇ 99/65638 ⁇ 98 / 00185
  • the non-resilient version shown in Fig. 2 (a) has end spherical partitions 1.1.1 and 1.1.2. Mirror 1.1.1 is discharged, and Mirror 1.1.2 is concave, in other words, the points of etiology
  • the mirror 1.1.1 is as simple as it may be, a useful, cross-section is a convenient cross-section of the exit beam.
  • the elliptical cross-section of the output part will be divided in this case by the shape and size of the diaphragm, which is located in front of the output loop 1.1.1. ⁇ ⁇ 99/65638 ⁇ / ⁇ 98 / 00185
  • ⁇ is the aberration coefficient, which changes with the change in the index of lens refraction; ⁇ t ⁇ - diameter beam in maximum cross section; 170 ⁇ - Focusing lenses.
  • Patent ⁇ ⁇ ° 2092947 “Sustainable gas laser with a stable - unstable Resistance” Zabelina ⁇ . ⁇ . / Bulletin ⁇ ° 28 for 1997

Abstract

Cette invention concerne un appareil d'usinage laser qui comprend un puissant laser à gaz à écoulement transversal. Ce laser est capable d'émettre un faisceau de sortie de forme elliptique, lequel faisceau est étiré dans une direction perpendiculaire au plan du flux de gaz qui traverse une chambre à décharge de gaz. La fenêtre de sortie transparente et la lentille de l'objectif possèdent une forme étirée qui est fonction de la section du rayonnement laser sortant qui les traverse.
PCT/RU1998/000185 1998-06-16 1998-06-16 Appareil d'usinage laser WO1999065638A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/RU1998/000185 WO1999065638A1 (fr) 1998-06-16 1998-06-16 Appareil d'usinage laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU1998/000185 WO1999065638A1 (fr) 1998-06-16 1998-06-16 Appareil d'usinage laser

Publications (1)

Publication Number Publication Date
WO1999065638A1 true WO1999065638A1 (fr) 1999-12-23

Family

ID=20130228

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU1998/000185 WO1999065638A1 (fr) 1998-06-16 1998-06-16 Appareil d'usinage laser

Country Status (1)

Country Link
WO (1) WO1999065638A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1223541A1 (ru) * 1984-06-15 1990-06-15 Московский институт радиотехники, электроники и автоматики Установка дл лазерной обработки
SU1225156A1 (ru) * 1984-06-15 1990-06-15 Московский автомобильный завод им.И.А.Лихачева Установка дл лазерной обработки
US5229572A (en) * 1991-04-24 1993-07-20 Brother Kogyo Kabushiki Kaisha Laser processing apparatus having plural processing nozzles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1223541A1 (ru) * 1984-06-15 1990-06-15 Московский институт радиотехники, электроники и автоматики Установка дл лазерной обработки
SU1225156A1 (ru) * 1984-06-15 1990-06-15 Московский автомобильный завод им.И.А.Лихачева Установка дл лазерной обработки
US5229572A (en) * 1991-04-24 1993-07-20 Brother Kogyo Kabushiki Kaisha Laser processing apparatus having plural processing nozzles

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
A.G. GRIGORYANTS, "Lazernaya Rezka, Metallov", Moscow, "Vyscherya Shkola", 1988, pages 98-110. *
V.M. ANDRYAKHIN, "Protsessy Lazernoi Svarkii Termoobrabotki", Moscow, "Nauka", pages 37-39. *

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