The quality of the automatic fiber cutting machine

Taiwan group automatic fiber cutting machine can skillfully use high-power laser cutting machine for cutting processing. Related knowledge Principles and main features of laser cutting 1. Advantages of laser cutting Good cutting quality and fast cutting speed (3) Easy to automatically control clean, safe, pollution-free, and greatly improve the working environment. Principles and main features of laser cutting. Classification and principle of laser cutting. Vaporization Cutting When the high-power density laser beam irradiates the surface of the workpiece, the material is heated to the vaporization point in a very short time, part of the material turns into vapor and escapes, and part of the material is expelled from the bottom of the slit by the auxiliary gas in the form of ejection. Melting cutting uses a certain power density laser to irradiate the surface of the workpiece to melt it to form a hole, and at the same time rely on the inactive auxiliary gas coaxial with the laser beam to blow off the molten material around the hole to form a slit. (3) The oxygen-assisted melting and cutting laser heats the workpiece to its ignition point, and uses oxygen or other active gases to burn the material, resulting in a fierce chemical reaction to form another heat source besides the laser, which is completed under the combined action of the two heat sources Cutting. Controlled fracture cutting uses laser beam heating for high-speed and controllable cutting of brittle materials that are easily damaged by heat. Laser cutting principle and main characteristics Laser cutting classification and principle Airflow 45°Reflector Laser cutting direction Laser beam vaporizes material Cut material ablation front Focus lens melting zone enters auxiliary gas auxiliary gas flow Coaxial nozzle adjustment nozzle molten material injection Figure 4- 1 Schematic diagram of laser cutting area Figure 4-2 Schematic diagram of laser cutting device Laser cutting quality evaluation system 1. Laser cutting quality evaluation system 1. Size of incision cutting surface, cutting surface thermal influence of slag sticking accuracy, width, roughness, tilt angle area, laser cutting quality evaluation system 1 The dimensional accuracy of laser cutting The dimensional accuracy of laser cutting is the overall accuracy determined by the performance of the cutting machine's CNC machine tool, beam quality, and processing phenomena, including positioning accuracy and repeat accuracy, etc., and the processing shape that changes with the cutting speed. Trajectory accuracy, that is, dynamic accuracy.

The influence of the beam quality of the automatic fiber cutting machine on the processing accuracy comes from the roundness of the beam, the unevenness of the intensity and the disorder of the optical axis. The precision determined by the processing phenomenon is related to the physical properties of the workpiece such as abnormal combustion, thermal expansion, rough cutting surface, and material caused by the thermal disorder of the oxidation reaction. In the laser cutting process of general materials, due to the fast cutting speed, the thermal deformation of the workpiece is small. Through the adjustment of the equipment and the necessary program compensation, the influence of the beam quality and processing phenomena on the processing dimensional accuracy can be reduced to a small extent At this time, the accuracy of the size of the cutting workpiece is mainly determined by the mechanical accuracy and control accuracy of the cutting machine's CNC worktable. Laser cutting quality evaluation system 1. The dimensional accuracy of laser cutting In the pulse laser cutting process, high-precision cutting machine tools and control technology are used, and the dimensional accuracy of the workpiece can reach the order of µm. Master the principle and key points of a typical group of automatic fiber cutting machines Difficulties and key points of solutions: laser cutting process and the principle of a typical group of fully automatic fiber cutting machines. Difficulties: laser cutting process solutions: 1. Through physical observations, students’ intuitive impressions can be enhanced to lay a solid foundation for solving the teaching focus of this unit . Through observing and explaining, and using multimedia means, break through the difficulties of this lesson.