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WO2021130727A1 - Dispositif de rechargement laser et tête optique - Google Patents

Dispositif de rechargement laser et tête optique Download PDF

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Publication number
WO2021130727A1
WO2021130727A1 PCT/IB2020/062454 IB2020062454W WO2021130727A1 WO 2021130727 A1 WO2021130727 A1 WO 2021130727A1 IB 2020062454 W IB2020062454 W IB 2020062454W WO 2021130727 A1 WO2021130727 A1 WO 2021130727A1
Authority
WO
WIPO (PCT)
Prior art keywords
mirrors
laser
laser radiation
beams
optical head
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.)
Ceased
Application number
PCT/IB2020/062454
Other languages
English (en)
Russian (ru)
Inventor
Дмитрий ЧУХЛАНЦЕВ
Владимир УМНОВ
Виктор Мальцев
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2021130727A1 publication Critical patent/WO2021130727A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
    • 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
    • B23K26/34—Laser welding for purposes other than joining
    • B23K26/342—Build-up welding

Definitions

  • the optical head contains a housing installed in said housing a lens for focusing laser radiation, a device for separating laser radiation, a device for converging laser beams, said device for separating laser radiation is made in the form of two contacting mirrors located under angle to each other with the possibility of dividing the laser radiation into at least two oppositely directed laser beams, said convergence device contains two mirrors that direct said oppositely directed laser beams into the treatment zone, said convergence device mirrors are made rotatable.
  • the specified technical result is also achieved by the fact that a device for feeding the material to be welded is installed in the housing, and the mirrors of the device for separating laser radiation are made in the form of flat mirrors.
  • the device for laser cladding comprises a source of laser radiation, an optical head having a housing, a lens for focusing laser radiation installed in said housing, a device for separating laser radiation, a device for converging laser beams, a device for supplying the material to be welded, said device the separation of laser radiation is made in the form of two contacting mirrors located at an angle to each other so that the laser radiation is divided into at least two oppositely directed laser beams, the said converting device contains two mirrors that direct the said oppositely directed laser beams into the zone processing, while the said mirrors of the information device are rotary.
  • optical head is made with the ability to rotate around the optical axis of the lens for focusing.
  • Equipment for laser cladding must have a high-quality optical system and means of precise supply of the material to be welded to the zone of laser radiation exposure, which ensures a high utilization of the material.
  • modern equipment in this area should provide control over the size, power of the heating spot and its position relative to the axis of supply of the surfacing material in the processing area in a wide range.
  • the device for laser cladding shown in Fig. 1, contains a source 1 of laser radiation (for example, a solid-state or gas laser) and an optical head 21.
  • the optical head 21 is mounted on the device for surfacing with the possibility of rotation around its axis and rectilinear movement relative to the surface to be treated.
  • the optical head 21 comprises a housing 18, in which a lens 2 for focusing laser radiation from a laser 1, a device for separating laser radiation and a device for converging laser beams are installed.
  • the device for separating laser radiation is made in the form of two mirrors 3 and 4, which touch their lateral sides in the region 23 and are located at an angle to each other, as shown in Fig. 12.
  • Mirrors 3 and 4 are installed so that they provide separation of the input laser radiation from the laser 1 into two oppositely directed laser beams.
  • the angle b between mirrors 3 and 4 shown in FIG. 4 can be between 70 degrees and 110 degrees.
  • reference number 23 denotes the contact area of the lateral sides of the mirrors 3 and 4.
  • each of the mirrors 3 or 4 consists of three flat contacting mirrors 14, 15, 16. Place three, you can use two or four mirrors. In Figs. 2 and 3, only one of the mirrors 3 or 4 is made composite.
  • Mirrors 3 and 4 are expediently made with the possibility of simultaneous movement along line 17, as indicated by the double arrow in Fig. 6, relative to the optical axis 11 of the focusing lens 2.
  • Making one or both mirrors 3 and 4 composite makes it possible to divide the input radiation into several beams and obtain several focal spots on or near the treated surface 10.
  • mirror 3 forms one beam
  • composite mirror 4 forms three beams. Separated by mirrors 3 and 4, and then converged by mirrors 5 and 6, beams appear on the treated surface 10 from different sides from the axis 12 of the deposited material supply.
  • the geometric centers of all beams on the treated surface 10 are located on one straight line passing through the axis of supply of the deposited material 12. This increases the energy efficiency of the use of laser radiation, since it excludes the heating of neighboring regions that occurs with an annular beam, in which the surfacing process does not take place supplied along the axis 12 of the deposited material.
  • the laser beams 8 and 9 overlap on the treated surface 10 on the axis 12 of the deposited material supply.
  • the arrow shows the direction of movement of the device.
  • the beam 9 creates a pool of melt in the zone of supply of the material to be welded to the workpiece surface 10, and the beam 8 in the zone of heating the track of the weld surface removes residual stresses after fusion.
  • the arrow shows the direction of movement of the device.
  • the device works as follows.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Laser Beam Processing (AREA)

Abstract

L'invention se rapporte aux équipements pour appliquer des revêtements métalliques par rechargement laser. Ce dispositif de rechargement laser comprend un laser (1) et une tête optique (21). La tête optique comprend un corps (18) et, disposés dans ledit corps, une lentille (2), un dispositif de séparation du rayonnement laser, un dispositif de guidage des faisceaux laser, un dispositif d'alimentation en matériau de rechargement, un dispositif (7) d'alimentation en matériau de rechargement. Le dispositif de séparation se présente sous forme de deux miroirs (3) et (4) entrant en contact. Le dispositif de guidage comprend deux miroirs (5) et (6). Le résultat technique consiste en une meilleure productivité et meilleure qualité de rechargement.
PCT/IB2020/062454 2019-12-27 2020-12-24 Dispositif de rechargement laser et tête optique Ceased WO2021130727A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2019144268 2019-12-27
RU2019144268A RU2732467C1 (ru) 2019-12-27 2019-12-27 Устройство для лазерной наплавки и оптическая головка

Publications (1)

Publication Number Publication Date
WO2021130727A1 true WO2021130727A1 (fr) 2021-07-01

Family

ID=72516570

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2020/062454 Ceased WO2021130727A1 (fr) 2019-12-27 2020-12-24 Dispositif de rechargement laser et tête optique

Country Status (2)

Country Link
RU (1) RU2732467C1 (fr)
WO (1) WO2021130727A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2283738C1 (ru) * 2005-02-15 2006-09-20 ОАО "Раменское приборостроительное конструкторское бюро" Установка для лазерной обработки
RU162815U1 (ru) * 2016-02-09 2016-06-27 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") Установка для лазерной обработки
WO2017139769A1 (fr) * 2016-02-12 2017-08-17 Ipg Photonics Corporation Tête de découpe par laser ayant deux miroirs mobiles produisant un alignement de faisceau et/ou un mouvement d'oscillation
RU187729U1 (ru) * 2018-06-20 2019-03-15 Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Автоматики Им.Н.Л.Духова" (Фгуп "Внииа") Установка для лазерной обработки

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004095444A1 (fr) * 2003-04-24 2004-11-04 Konica Minolta Opto, Inc. Dispositif optique de diffraction et dispositif de lecture optique comprenant ce dernier
CN103060801B (zh) * 2013-01-29 2014-11-05 西安交通大学 一种用于变光斑工艺的同轴送粉喷嘴
RU2017131835A (ru) * 2017-12-18 2019-06-18 Общество с ограниченной ответственностью "Новые технологии лазерного термоупрочнения" (ООО "НТЛТ") Оптическая головка для лазерной обработки внутренних поверхностей изделий цилиндрической формы
CN208628429U (zh) * 2018-05-03 2019-03-22 中国兵器装备研究院 一种增材制造装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2283738C1 (ru) * 2005-02-15 2006-09-20 ОАО "Раменское приборостроительное конструкторское бюро" Установка для лазерной обработки
RU162815U1 (ru) * 2016-02-09 2016-06-27 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") Установка для лазерной обработки
WO2017139769A1 (fr) * 2016-02-12 2017-08-17 Ipg Photonics Corporation Tête de découpe par laser ayant deux miroirs mobiles produisant un alignement de faisceau et/ou un mouvement d'oscillation
RU187729U1 (ru) * 2018-06-20 2019-03-15 Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Автоматики Им.Н.Л.Духова" (Фгуп "Внииа") Установка для лазерной обработки

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Publication number Publication date
RU2732467C1 (ru) 2020-09-17

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