Method and device for cutting a flat workpiece that consists...

Details Method and device for cutting a flat workpiece that consists... Method and device for cutting a flat workpiece that consists...

2005-05-17

2005-05-17

Elve, M. Alexandra (Department: 1725)

Electric heating

Metal heating

By arc

C219S121670, C219S121850

Reexamination Certificate

active

06894249

ABSTRACT:
An arrangement for cutting a flat workpiece includes a drive unit for generating a relative movement between the focused laser beam (2) and the workpiece (1). The laser beam induces a thermomechanical stress in the workpiece along the cutting line. A scoring tool (7) generates an initial score at the start of the cutting line. A “flying” scoring is provided wherein a unit (5, 6, 8) moves the scoring tool (7). The unit is coupled in a controlled manner to the cutting movement of the laser beam (2) so that the scoring tool (7) can be brought into a short-time scoring working engagement with the workpiece (1) at the start of the cutting movement.

REFERENCES:
patent: 3453097 (1969-07-01), Hafner
patent: 3543979 (1970-12-01), Grove et al.
patent: 3932726 (1976-01-01), Verheyen et al.
patent: 3935419 (1976-01-01), Lambert et al.
patent: 4102227 (1978-07-01), Simko
patent: 5622540 (1997-04-01), Stevens
patent: 5871134 (1999-02-01), Komagata et al.
patent: 6327875 (2001-12-01), Allaire et al.
patent: 62046930 (1987-02-01), None

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