| 摘要 |
PURPOSE:To carry out appropriate hardening with no need for skill by inputting hardening conditions to an arithmetic unit, controlling the power of a laser oscillator based on the output, and controlling the movement of the laser-beam working head and a material to be worked in the hardening utilizing a laser beam. CONSTITUTION:A laser beam 11 from the laser oscillator 5 is focused by a lens 9, and projected on the material to be worked on a working table 10 to harden the material. In this case, the hardening depth, width, etc., of the material are determined by the arithmetic unit 2 from the quality, hardening hardness, hardening width, etc., of the material inputted to a data input device 1, and the required energy density of the laser beam is operated. The arithmetically operated value is inputted to a laser power controller 4 to appropriately control the output ot the oscillator 5, and then inputted to a motor controller 3 to automatically adjust the horizontal movement of the working table 10 operated by motors 6 and 6 and the distance between the laser working head operated by a motor 7 and the material. Consequently, a hardened layer having desired width, depth, and hardness is formed on the surface of the material. |
