Invention Grant
- Patent Title: Laser nozzle having an external mobile element made of electrically insulating material and an insert made of electrically conductive material
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Application No.: US14441645Application Date: 2013-10-23
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Publication No.: US09610652B2Publication Date: 2017-04-04
- Inventor: Thomas Jouanneau , Philippe Lefebvre
- Applicant: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
- Applicant Address: FR Paris
- Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
- Current Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
- Current Assignee Address: FR Paris
- Agent Elwood L. Haynes
- Priority: FR1260659 20121109
- International Application: PCT/FR2013/052534 WO 20131023
- International Announcement: WO2014/072610 WO 20140515
- Main IPC: B23K26/142
- IPC: B23K26/142 ; B23K26/14 ; B23K26/38 ; B23K26/04 ; B23K26/046
Abstract:
The invention relates to a nozzle for laser cutting, comprising a nozzle body (1) comprising a first axial housing (5), a movable element (2) formed from an electrically insulating material and comprising a second axial housing (4), said movable element (2) being arranged in the first axial housing (5), and an elastic element (8) arranged in the first axial housing (5) between the nozzle body (1) and the movable element (2). According to the invention, the nozzle furthermore comprises an insert (3) comprising an axial passage (18) and a front portion (3a) forming a skirt that protrudes out of the second axial housing (4), said insert (3) being arranged in the second axial housing (4) of the movable element (2) and formed from an electrically conductive material. Associated laser head and apparatus. Laser cutting process employing such a nozzle.
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