Method and apparatus for laser drilling with a jet nozzle

Details Method and apparatus for laser drilling with a jet nozzle Method and apparatus for laser drilling with a jet nozzle

2007-05-08

2007-05-08

Evans, Geoffrey S. (Department: 1725)

Electric heating

Metal heating

By arc

C219S121710, C219S121840

Reexamination Certificate

active

11206075

ABSTRACT:
A drilling device (1) for placing a bore hole (2) in a workpiece (3), includes a drill laser (4) that generates a laser beam (6) suitable for placing the bore hole (2), and a jet nozzle (5) for producing a gas jet (8), which flows toward the bore hole (2) and encases the laser beam (6) essentially coaxially and blows out melt (9) from the bore hole (2) and prevents a backward splashing of the melt (9) in the direction of the drilling device (1), wherein the diameter (dG) of the gas jet (8), at least at the bore hole opening (10), is smaller than the diameter (dB) of the bore hole (2) produced by the laser beam (6).

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Copy of Search Report for DE 10 2004 041 273.1 (May 17, 2005).
Copy of Search Report for European Patent Appl. No. 05107480.5 issued from the European Patent Office on Dec. 1, 2005.

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