Method for welding stacker laminations and article therefrom

Details Method for welding stacker laminations and article therefrom Method for welding stacker laminations and article therefrom

1994-04-18

1995-12-05

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Edge feature

428194, 428195, 428198, 428209, 4284111, 428457, 219136, B32B 2302

Patent

active

054727723

ABSTRACT:
A method for welding a plurality of stacked laminations includes positioning an edge of the laminations adjacent to a pulsed laser for receiving a pulsed laser beam at the kerf defined between adjacent laminations. The laser is operated to direct the pulsed laser beam at the kerf for melting the adjacent laminations to a predetermined maximum depth. The laser is controlled to limit heat input at the kerf for effecting a generally parabolic melting zone. The stacked laminations 10 are moved transversely edge-to-edge relative to the pulsed laser beam for repeating the pulsed welding at successive kerfs.

REFERENCES:
patent: 3922517 (1975-11-01), Nelson et al.
patent: 4114019 (1978-09-01), Sandor
patent: 4461945 (1984-07-01), O'Cheskey et al.
patent: 5276298 (1994-01-01), Jones et al.
"Laser Welding Improves Stator Performance", Industrial Laser Review, Jan. 1993, pp. 7-8.

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