Electric heating – Metal heating – By arc
Patent
1990-05-25
1991-05-14
Albritton, C. L.
Electric heating
Metal heating
By arc
B23K 2600
Patent
active
050158201
ABSTRACT:
It is a method of making spring washers by means of a laser beam and a spring coil; the laser beam is focused perpendicularly at the spring coil in a 1/3 depth from the surface of the spring coil; a relative movement between the laser beam and the spring coil is made during cutting the spring coil.
Albritton C. L.
Industrial Technology Research Institute
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