Patent ID: 7910856

Claim:
A hybrid laser processing apparatus including a processing head having a jet hole; liquid supply means for supplying the processing head with a high-pressure liquid; a laser oscillator for oscillating a laser beam; a condensing lens for condensing the oscillated laser beam; a chamber for enclosing at least a space formed between the processing head and a workpiece; and gas exhaust means for bringing the interior of the chamber into a vacuum state, wherein the apparatus performs processing on the workpiece by jetting a liquid supplied from the liquid supply means from the jet hole in the form of a liquid column and guiding the laser beam to the liquid column by the condensing lens, the jet hole comprises a first angled surface which is formed on a side on the condensing lens and converges toward the workpiece, a second angled surface which diverges toward the workpiece and the jet hole has a minimum diameter portion having a diameter of no more than 50 μm and the processing head is fixed to the upper surface of the chamber.