GB1292981A - Cutting frangible workpieces - Google Patents

Cutting frangible workpieces

Info

Publication number
GB1292981A
GB1292981A GB4209/69A GB420969A GB1292981A GB 1292981 A GB1292981 A GB 1292981A GB 4209/69 A GB4209/69 A GB 4209/69A GB 420969 A GB420969 A GB 420969A GB 1292981 A GB1292981 A GB 1292981A
Authority
GB
United Kingdom
Prior art keywords
cutting
workpiece
frangible
workpieces
jan
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.)
Expired
Application number
GB4209/69A
Inventor
Edwin Walter Paine
Mallikaarachchige Don Srilal
Parakrema Wijetunge
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.)
BOC Group Ltd
Original Assignee
British Oxigen Ltd
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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB4209/69A priority Critical patent/GB1292981A/en
Priority to AU10602/70A priority patent/AU1060270A/en
Publication of GB1292981A publication Critical patent/GB1292981A/en
Expired legal-status Critical Current

Links

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
    • 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
    • B23K26/1462—Nozzles; Features related to nozzles
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/08—Severing cooled glass by fusing, i.e. by melting through the glass
    • C03B33/082—Severing cooled glass by fusing, i.e. by melting through the glass using a focussed radiation beam, e.g. laser
    • 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
    • B23K2103/30—Organic material
    • B23K2103/42—Plastics
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Laser Beam Processing (AREA)

Abstract

1292981 Cutting by laser beam BRITISH OXYGEN CO Ltd 16 Jan 1970 [24 Jan 1969] 4209/69 Headings B4B and B5E [Also in Division C1] A method of cutting a workpiece of glass or other frangible material includes the steps of directing at the workpiece a beam of radiant energy from a laser, and directing at the zone impinged upon by the beam a gas mixture comprising a minor proportion by volume of hydrogen and a major proportion by volume of other non-reactive gas. The non-reactive gas may be nitrogen or argon. Preferably the area of the workpiece upon which the gas stream is incident is larger than, and encloses, that zone of the workpiece on which the beam is incident.
GB4209/69A 1969-01-24 1969-01-24 Cutting frangible workpieces Expired GB1292981A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4209/69A GB1292981A (en) 1969-01-24 1969-01-24 Cutting frangible workpieces
AU10602/70A AU1060270A (en) 1969-01-24 1970-01-22 Cutting workpieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4209/69A GB1292981A (en) 1969-01-24 1969-01-24 Cutting frangible workpieces

Publications (1)

Publication Number Publication Date
GB1292981A true GB1292981A (en) 1972-10-18

Family

ID=9772795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4209/69A Expired GB1292981A (en) 1969-01-24 1969-01-24 Cutting frangible workpieces

Country Status (2)

Country Link
AU (1) AU1060270A (en)
GB (1) GB1292981A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2527080A1 (en) * 1974-07-01 1976-01-22 Ford Werke Ag METHOD OF CUTTING GLASS
US4401876A (en) 1980-05-20 1983-08-30 Martin Cooper Working gemstones
GB2152281A (en) * 1983-12-28 1985-07-31 Rene Lefevre Process for producing miniature piezoelectric devices using laser machining and devices obtained by this process
GB2191434A (en) * 1985-05-09 1987-12-16 Aga Ab Methods of cutting metallic workpieces by laser
EP0901871A1 (en) * 1997-08-14 1999-03-17 Linde Aktiengesellschaft Method for laser cutting glass
EP0901870A1 (en) * 1997-08-14 1999-03-17 Linde Aktiengesellschaft Method for laser cutting glass
US5932119A (en) * 1996-01-05 1999-08-03 Lazare Kaplan International, Inc. Laser marking system
US6204472B1 (en) * 1996-06-27 2001-03-20 Calp-Cristalleria Artistica La Piana S.P.A. Method and device for cutting hollow glass articles by a laser beam
EP1112974A2 (en) * 1999-12-30 2001-07-04 Schott Desag AG Method for making pre-stressed or bended glass sheets

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2527080A1 (en) * 1974-07-01 1976-01-22 Ford Werke Ag METHOD OF CUTTING GLASS
US4401876A (en) 1980-05-20 1983-08-30 Martin Cooper Working gemstones
GB2152281A (en) * 1983-12-28 1985-07-31 Rene Lefevre Process for producing miniature piezoelectric devices using laser machining and devices obtained by this process
GB2191434A (en) * 1985-05-09 1987-12-16 Aga Ab Methods of cutting metallic workpieces by laser
GB2191434B (en) * 1985-05-09 1990-07-04 Aga Ab Methods of,and apparatus for, cutting metallic workpieces by laser
US6211484B1 (en) 1996-01-05 2001-04-03 Lazare Kaplan International, Inc. Laser making system and certificate for a gemstone
US5932119A (en) * 1996-01-05 1999-08-03 Lazare Kaplan International, Inc. Laser marking system
US6476351B1 (en) 1996-01-05 2002-11-05 Lazare Kaplan International, Inc. Laser marking system
EP2216126A2 (en) 1996-01-05 2010-08-11 Lazare Kaplan International Inc. Laser marking system for gemstones and method of authenticating marking
US6204472B1 (en) * 1996-06-27 2001-03-20 Calp-Cristalleria Artistica La Piana S.P.A. Method and device for cutting hollow glass articles by a laser beam
EP0901870A1 (en) * 1997-08-14 1999-03-17 Linde Aktiengesellschaft Method for laser cutting glass
EP0901871A1 (en) * 1997-08-14 1999-03-17 Linde Aktiengesellschaft Method for laser cutting glass
EP1112974A2 (en) * 1999-12-30 2001-07-04 Schott Desag AG Method for making pre-stressed or bended glass sheets
EP1112974A3 (en) * 1999-12-30 2001-11-28 Schott Desag AG Method for making pre-stressed or bended glass sheets

Also Published As

Publication number Publication date
AU1060270A (en) 1971-07-29

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee