Fanuc Corporation

Mitsuo Manabe

Norio Karube

Akira Egawa

Etsuo Yamazaki

Nobuaki Iehisa

Yoshiki Fujioka

Yasuyuki Morita

Kenji Mitsui

Laser oscillator using a plate-type heat exchanger

A laser discharge tube having electrodes the peeling of which is reduced and a method of manufacturing electrodes of a laser discharge tube by which the peeling of the electrodes is reduced. The electrodes are adhered to the outside periphery of the tube wall of the laser discharge tube. The electrodes contain as components an electric conductive substance, an inorganic binder and boron nitride as a thermal expansion preventing substance for suppressing a coefficient of thermal expansion. When a silica glass tube is used as the laser discharge tube, the laser discharge tube has a coefficient of thermal expansion of +0.5.times.10.sup.-6. When the electrodes are mixed with boron nitride, the electrodes have a coefficient of thermal expansion of +2 to +7.times.10.sup.-6 and the coefficient of thermal expansion of the electrodes can be brought close to the that of the laser discharge tube by mixing boron nitride with the electrodes. Thus, the peeling of the electrodes caused by a difference of the coefficients of thermal expansion can be reduced.

Laser discharge tube and electrode manufacturing method

Laser discharge tube

Numerical control system for laser

Laser oscillator device

Growing community of inventors

Hachioji, Japan

Mitsuo Manabe