A 3D printing device with polarization laser control and printing method thereof

Abstract

The present invention provides a polarized laser emitting device, a 3D printing device including the polarized laser emitting device and a printing method thereof. The polarized laser emitting device includes a linearly polarized laser generator, a collimating head, a glass slide, and a vibrating mirror. field lens; the linearly polarized laser generator, collimating head, glass slide, vibrating mirror, and field lens are sequentially arranged along the laser direction; the glass slide can be rotated around the laser axis to adjust the polarization direction of the linearly polarized laser. This application keeps the laser scanning direction and the laser polarization direction fixed through the control of the laser polarization direction, which can greatly improve the stability of the forming process and improve the forming quality. At the same time, by setting a specific laser polarization direction, the material absorbs the laser energy at the highest level. value, which can effectively improve energy utilization and reduce energy consumption.

Description

technical field [0001] The invention belongs to the application field of laser additive manufacturing, and in particular relates to a laser emitting device with polarization laser control, a 3D printing device including the laser emitting device and a printing method thereof. Background technique [0002] Driven by the digital model, the additive manufacturing technology can realize the manufacture of some complex structures that cannot be obtained by the traditional process through layer stacking, which largely removes the restrictions on the design of the process and provides a broader imagination space for industrial development. . [0003] However, at present, in the process of laser additive manufacturing, there are generally a series of problems such as high energy consumption, poor process stability, troublesome process exploration, poor surface quality of additive parts, and difficult deformation control. Of course, there are many factors that affect the additive fo...

AI Technical Summary

Problems solved by technology

[0005] In the existing field of additive manufacturing, random polarized lasers are used, which brings randomness in the direction of laser energy deposition, causing fluctuations in the absorption of laser energy by materials, and affecting the process stability of the additive manufacturing process.

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