Laser machining head

摘要

Focused laser light and plasma arc are coaxially disposed to provide a laser machining head which is possible to perform high precision and efficient machining, by reinforcing laser light with plasma arc to form a versatile heat source. For this purpose, in a tip part 6 of a laser machining head 10 having optical systems 4 and 5 for focusing a laser light 11 oscillated by a laser oscillator 1, a plasma machining head 20 is mounted coaxially with the optical systems 4 and 5. The plasma machining head 20 is provided with electrode nozzles 24 and 25 connected to a plasma apparatus 15 and a working gas supply passage 19 connected to the electrode nozzles 24 and 25 so that the laser light 11 and a plasma arc 28 are irradiated towards a same machining position 14 of a machined part 13.