Method for laser splitting wiper blades

Details Method for laser splitting wiper blades Method for laser splitting wiper blades

1992-09-14

1993-10-05

Albritton, C. L.

Electric heating

Metal heating

By arc

21912167, B23K 2600

Patent

active

052507858

ABSTRACT:
The joining web of a pair of molded wiper blades is successfully laser slit to produce a pair of sharp, square cornered edges. The wiper blade pair is first securely supported in a fixture beneath the laser lens housing. The laser beam is oriented with the focal point slightly above the surface of the web, rather than at or below it. The laser is set with a low power setting and short pulse length, all designed to minimize the otherwise harmful heat effects. When the beam is run straight down the web, too acceptably sharp edges are produced.

REFERENCES:
patent: 4613742 (1986-09-01), Nelson et al.
patent: 4650955 (1987-03-01), Zaborowski
patent: 4785699 (1988-11-01), Oblinger et al.

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