Laser cutting tool for cutting elongated hollow workpieces

Details Laser cutting tool for cutting elongated hollow workpieces Laser cutting tool for cutting elongated hollow workpieces

1996-10-24

1998-12-22

Mills, Gregory L.

Electric heating

Metal heating

By arc

21912182, B23K 2608

Patent

active

058522778

ABSTRACT:
A method of cutting a pattern in a hollow, tubular workpiece to form a stent or the like involves the use of a novel workpiece fixture. The workpiece fixture is rigidly carried on a laser cutting tool to support a long piece of stock tubing in a cantilever manner beneath the laser beam of the cutting tool. The fixture is spaced from the laser beam by a distance which is in a range of approximately the same as to slightly greater than the length of any axial repeat in the pattern. The laser beam cuts the pattern in the stock tubing piece as the stock tubing is advanced past the laser beam. The cutting takes place in a zone that is close to the end of the fixture and the cantilever support provided thereby.

REFERENCES:
patent: 1109952 (1914-09-01), Armstrong
patent: 2339986 (1944-01-01), Engert
patent: 3627339 (1971-12-01), Burweger
patent: 3882741 (1975-05-01), Cowdin
patent: 4151393 (1979-04-01), Fenneman et al.
patent: 4317021 (1982-02-01), Walch et al.
patent: 5026965 (1991-06-01), Ohe et al.
patent: 5345057 (1994-09-01), Muller
patent: 5386097 (1995-01-01), Ruckl

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