Laser cutting machine laser perforation size and its accuracy of control should pay attention to what?

Takeaway: the depth of the hole control improve the laser output energy, adopt reasonable pulse width ( Materials and thermal conductivity, the better, the pulse width of the shorter the YiQu) Model, the application base model ( Light intensity is a gaussian distribution of single mode) Big hole depth can be obtained. For the size of small deep Kong Yi by laser irradiation for many times, with short focal length ( 15～30mm） The objective of punch. ( 1) Aperture control using small divergence Angle of laser ( 0. 001-0. 003rad） And shorten the focal length or reduce the output energy small aperture can be obtained. For high melting point. Good thermal conductivity material aperture 0 can be realized. 01 ~ 1 mm small hole machining, the smallest aperture can reach 0. 001mm。 ( 2) Improve the depth of the hole control laser output energy, the reasonable pulse width ( Materials and thermal conductivity, the better, the pulse width of the shorter the YiQu) Model, the application base model ( Light intensity is a gaussian distribution of single mode) Big hole depth can be obtained. For the size of small deep Kong Yi by laser irradiation for many times, with short focal length ( 15～30mm） The objective of punch. ( 3) Improving laser machining hole roundness laser mode using the base mould processing, focusing lens with aplanatic lens, and the lens axis and the laser beam axis coincidence, artifacts for deviating from the focal point and select the appropriate laser energy can improve the processing and roundness. ( 4) Lower punch taper hole taper usually increases with the aperture ratio increased, with the appropriate laser output energy or small light for many times, shorter focal length, small lens refractive index and decreases the Angle between the incident ray and the axis measures can reduce hole taper. USES the flight path of laser cutting machine, in the process of cutting, the cutting head only along the X, Y direction, workbench fixed position. There is also a kind of articulated arm is fixed optical path flight beam transmission form, referred to as constant flight path, referred to as the constant light path. From the device on the drive mode of X, Y axis with unilateral servo motor configuration corresponding reducer, with high precision gear rack drive structure; With the X axis bilateral servo motor was used for the configuration of the corresponding speed reducer, with high precision gear rack drive structure, double gear to eliminate backlash of drive way; A servo motor has high precision ball screw drive directly, big moment of inertia using disc motor direct driving pinion and rack; And adopts the structure of the linear motor direct drive way. Equipment configuration of laser according to the performance of the user processing, processing materials, shape, size and selection of different laser, available for selection of laser respectively shaft fast flow co2 laser, radio frequency (rf) board debugging laser, laser, solid laser and fiber laser, etc.