Method for edge rounding of springs

Details Method for edge rounding of springs Method for edge rounding of springs

1991-06-27

1993-02-23

Albritton, C. L.

Electric heating

Metal heating

By arc

B23K 2600

Patent

active

051892782

ABSTRACT:
A method for the edge rounding of springs is characterized in that the springs are heated with a laser beam until the desired edge rounding is obtained by softening or, respectively, fusing of the surface, whereupon the heating process is terminated. The method can be advantageously used for the edge rounding of stamping burrs, which were generated during the production of microsliding contacts by stamping. Advantageously the laser beam defocused i.e. focused to a point in front of or behind of the surface to be irradiated, whereby a soft radiation results. By avoiding a mechanical post-processing and with the contactless treatment, a particularly high surface quality can be achieved.

REFERENCES:
patent: 3718968 (1973-03-01), Sims et al.
patent: 4147570 (1979-04-01), Carbo et al.
patent: 4151014 (1979-04-01), Charschan et al.
patent: 4159686 (1979-07-01), Heim
patent: 4256948 (1981-03-01), Wolf et al.
patent: 4300474 (1981-11-01), Livsey
patent: 4756878 (1988-07-01), King et al.

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