YAG laser machine with safety system for beam path adjustment

Details YAG laser machine with safety system for beam path adjustment YAG laser machine with safety system for beam path adjustment

1994-10-14

1996-12-31

Evans, Geoffrey S.

Electric heating

Metal heating

By arc

B23K 2600

Patent

active

055890890

ABSTRACT:
A YAG laser machine for processes such as drilling, cutting, and welding includes a YAG laser generator and a guide beam generator for generating a visible guide beam such as a He--Ne laser. During periodic adjustment of beam path by adjustment of the optical elements a cover member is removed. Detachable element(s) are used for preventing reflected beam portion of the laser beam from leaking outside the machine and a safety system is interlocked with a detaching movement of the detachable element(s) for holding the YAG laser generator in a stopped state. Additionally a safety system is present that interlocks the mounting movement of detachable guide beam visual inspection system to hold the Yag laser generator in a stopped state. The guide beam visual inspection system includes a fiber scope with a polarizing plate.

REFERENCES:
patent: 3902036 (1975-08-01), Zaleckas
patent: 4843209 (1989-06-01), Milligan
patent: 4945489 (1990-07-01), Vahab

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