IT1250237B - Metodo e dispositivo per alimentare un gas di copertura su pezzi sottoposti a lavorazione laser. - Google Patents
Metodo e dispositivo per alimentare un gas di copertura su pezzi sottoposti a lavorazione laser.Info
- Publication number
- IT1250237B IT1250237B ITTO910933A ITTO910933A IT1250237B IT 1250237 B IT1250237 B IT 1250237B IT TO910933 A ITTO910933 A IT TO910933A IT TO910933 A ITTO910933 A IT TO910933A IT 1250237 B IT1250237 B IT 1250237B
- Authority
- IT
- Italy
- Prior art keywords
- laser processing
- gas
- feeding
- area
- jet
- Prior art date
Links
- 230000004075 alteration Effects 0.000 abstract 1
Classifications
-
- 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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- 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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
- B23K26/125—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases of mixed gases
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/1435—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor involving specially adapted flow control means
- B23K26/1437—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor involving specially adapted flow control means for flow rate control
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/1462—Nozzles; Features related to nozzles
- B23K26/1464—Supply to, or discharge from, nozzles of media, e.g. gas, powder, wire
- B23K26/147—Features outside the nozzle for feeding the fluid stream towards the workpiece
-
- 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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/26—Seam welding of rectilinear seams
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Laser Beam Processing (AREA)
Abstract
In un'apparecchiatura (10) per la lavorazione laser di pezzi (18), in cui un fascio laser (11) è diretto in modo da incidere su una zona (13) di una superficie in lavorazione (14) sostanzialmente perpendicolarmente ad essa, l'alimentazione di un getto (21) di gas di copertura si effettua in modo da lambire la zona (13) della superficie (14) in direzione trasversale a quella del fascio laser (11) e con una elevata velocità tale da eliminare sostanzialmente ogni alterazione delle proprietà fisiche e/o chimiche del gas. Il getto (21) viene convogliato mediante un condotto (26) a parete solida, il quale comprende due aperture trasversali (29, 31) per consentire il passaggio del fascio (11) verso la zona (13), ed un ugello (32) atto ad imprimere al getto di gas (21) una velocità appropriata.(Figura 2)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO910933A IT1250237B (it) | 1991-11-29 | 1991-11-29 | Metodo e dispositivo per alimentare un gas di copertura su pezzi sottoposti a lavorazione laser. |
EP92924861A EP0621817B1 (en) | 1991-11-29 | 1992-11-27 | Method and device for gas shielding laser processed workpieces |
PCT/IT1992/000151 WO1993010937A1 (en) | 1991-11-29 | 1992-11-27 | Method and device for gas shielding laser processed workpieces |
DE69220241T DE69220241T2 (de) | 1991-11-29 | 1992-11-27 | Verfahren und vorrichtung zum abschirmen von einem mit einem laser bearbeitetes werkstueck mit gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO910933A IT1250237B (it) | 1991-11-29 | 1991-11-29 | Metodo e dispositivo per alimentare un gas di copertura su pezzi sottoposti a lavorazione laser. |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO910933A0 ITTO910933A0 (it) | 1991-11-29 |
ITTO910933A1 ITTO910933A1 (it) | 1993-05-29 |
IT1250237B true IT1250237B (it) | 1995-04-03 |
Family
ID=11409752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITTO910933A IT1250237B (it) | 1991-11-29 | 1991-11-29 | Metodo e dispositivo per alimentare un gas di copertura su pezzi sottoposti a lavorazione laser. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0621817B1 (it) |
DE (1) | DE69220241T2 (it) |
IT (1) | IT1250237B (it) |
WO (1) | WO1993010937A1 (it) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA961930A (en) * | 1971-12-30 | 1975-01-28 | Edward V. Locke | Welding with a laser beam |
US4000392A (en) * | 1974-07-01 | 1976-12-28 | United Technologies Corporation | Fusion zone purification by controlled laser welding |
GB1542128A (en) * | 1976-08-03 | 1979-03-14 | Boc Ltd | Laser welding apparatus |
IT1165636B (it) * | 1979-03-05 | 1987-04-22 | Fiat Auto Spa | Metodo ed apparecchio per il controllo dei gas di copertura utilizzati nelle lavorazioni a mezzo di laser di potenza su pezzi metallici |
-
1991
- 1991-11-29 IT ITTO910933A patent/IT1250237B/it active IP Right Grant
-
1992
- 1992-11-27 WO PCT/IT1992/000151 patent/WO1993010937A1/en active IP Right Grant
- 1992-11-27 DE DE69220241T patent/DE69220241T2/de not_active Expired - Fee Related
- 1992-11-27 EP EP92924861A patent/EP0621817B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0621817B1 (en) | 1997-06-04 |
DE69220241T2 (de) | 1998-01-22 |
WO1993010937A1 (en) | 1993-06-10 |
ITTO910933A0 (it) | 1991-11-29 |
EP0621817A1 (en) | 1994-11-02 |
DE69220241D1 (de) | 1997-07-10 |
ITTO910933A1 (it) | 1993-05-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19951229 |