Laser beam welding

Details Laser beam welding Laser beam welding

1987-02-17

1989-09-12

Paschall, M. H.

Electric heating

Metal heating

By arc

21912184, 21912172, B23K 2600

Patent

active

048662429

ABSTRACT:
A 3-25 mm metal plate 22, 27, usually ferrous, is welded by a heavy-duty laser (5-25 kw) which melts through the plate and into a support member 24, 31 below to give a unitary weld. A gas supply to the laser beam focus is provided such that on the one hand the plasma is retained at least partially near the weld pool to give good energy transfer and on the other the plasma does not all escape.

REFERENCES:
patent: 4377735 (1983-03-01), Minamida et al.
patent: 4424435 (1984-01-01), Barnes, Jr.
patent: 4507540 (1985-03-01), Hamasaki
patent: 4546230 (1985-10-01), Sasaki et al.
patent: 4603089 (1986-07-01), Bampton
patent: 4634832 (1987-01-01), Martyr
patent: 4642446 (1987-02-01), Pennington

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