Laser working device

Abstract

Abstract PURPOSE:To make desired hardening accurately in making surface hardening by a laser beam by storing temperature career of the surface of coating material of the object to be hardened and calculating interrelation with read hardening characteristics at a low speed. CONSTITUTION:A laser beam from a laser oscillator 1 is reflected by a mirror 5. After passing a condenser 6, the surface of a work 3 coated with coating material 3a such as graphite, manganese phosphate etc. is scanned by oscillation which differs by 90 degrees, that is, the mirror 5 and a table 2 on which the work 3 is placed. In this case, surface temperature of the coating of hardened part of the work 3 is measured by a radiation pyrometer 9 and information on variation of hardening condition is inputted to a controlling circuit 12 through a buffer memory 10 and an arithmetic circuit 11. Controlling signals are sent by this circuit to the laser beam oscillator 1, focus adjusting mechanism 7 and a scanning controlling circuit 8 to make proper control. Thus, hardening of desired hardening width, depth and hardness can be effected.

Inventors

• 👤 Akira Ono
• 👤 Seiichiro Kimura

Bibliographic Details