The metal laser cutting machine is a new type of cutting machine, which has greatly improved in function and operation. The operator should understand the skills in many aspects. The following article mainly introduces the precision control of the metal laser cutting machine's drilling skills.

(1) Aperture scale control: select a laser with small divergence angle (0.001~0.003rad), shorten the focal length or reduce the output energy to obtain a small aperture. About high melting point. The data with good thermal conductivity can complete the processing of small holes with an aperture of 0.01~1mm, and the small aperture can reach 0.001 mm.

(2) Hole depth control: improve the laser output energy of metal laser cutting machine, select a reasonable pulse width (the better the data and thermal conductivity, the shorter the pulse width is appropriate), and use the basic mode form (single mode with Gaussian distribution of light intensity) to obtain a large hole depth. For deep holes with small apertures, it is advisable to use laser light repeatedly and use short focal length (15-30mm)

The objective lens is perforated.

(3) To improve the roundness of laser processing holes: the laser form is to select the basic mode for processing, the focusing lens is to use the spherical aberration objective lens, and the optical axis of the lens coincides with the optical axis of the laser beam, the workpiece properly violates the focusing point, and the appropriate laser energy is selected to improve the processing roundness.

(4) Decrease the taper of the hole: generally, the taper of the hole increases with the increase of its aperture ratio. The taper of the hole can be reduced by selecting appropriate laser output energy or small energy repeated illumination, short focal length, small lens refractive index and reducing the angle between the incident light and the optical axis.

The precision control and delicate operation of the drilling skills of the metal laser cutting machine are very important. After the operators understand the various skills of a kind of equipment, the use of various parts of the equipment will also be familiar. I hope that the operation of the drilling skills introduced in this article will have the effect of learning and assistance for everyone.