As the energy form of melting powder materials in 3D printing technology, lasers occupy a core position in different fields such as metals and polymers. The general laser pointer mode is a point; however, if there is a brand-new laser mode, will it trigger a new 3D printing technology revolution?
The first point: It is possible that the experts who do additive manufacturing, or use lasers for additive manufacturing, do not particularly understand the principles and technologies of lasers. In the introduction, I will introduce the principles and technologies of lasers a little bit, especially the laser mode, including Now the new laser mode in the screen. The second point: Will the new laser have some possible future applications in additive manufacturing, which is equivalent to supplementing additive manufacturing and providing a new development idea.
First, the application of laser in various fields of industry and military.
Second, the application of lasers in additive manufacturing.
Third, a new type of laser mode.
Fourth, will the new laser mode have some applications in additive manufacturing?
First look at the application of lasers. Why lasers can play an increasingly important role in the industrial field, including many other industries, is because the characteristics of lasers are different from traditional light sources. The characteristics of laser are high bright spots, high directivity, and high monochromaticity. Such characteristics determine that it can play a very important role. Corresponding to high brightness, high directivity, and high monochromaticity, from the physical concept, it is the characteristics of time domain, frequency domain, and space domain.
The time domain characteristics and frequency domain characteristics have been discussed by the previous experts. Time domain characteristics, on the one hand, in terms of time, we can be continuous lasers, that is, pulsed lasers. There can be different energy output in different time units, which corresponds to different power, which is also its time domain characteristic. Then the frequency domain characteristics are different wavelengths, different green laser pointer have different wavelengths, and different wavelengths correspond to the absorption characteristics of different materials, so the application of processing and manufacturing can be matched accordingly.
Therefore, the report mainly introduces the characteristics of the airspace, or we do not have much contact with it in the application. In fact, Mr. Zhou has already pointed out the application of the ring beam in the laser which Mr. Zhou is studying. In fact, these two beams can also be considered as a new type of beam, which is compared with the traditional Gaussian beam or It is a flat-top beam, a new type of beam.