The essence of laser processing is that the laser transmits energy to the material to be processed, and the material to be processed undergoes physical or chemical changes to achieve the purpose of processing. The laser micro processing technology can not only process more complex micro structures, but also require less stringent conditions than the anisotropic etching and LIGA technology, which is easier to achieve in laboratories and factories. Moreover, because of the high time and spatial resolution of laser, it is possible to further promote and apply it in the occasions requiring high-precision processing (such as electronics, semiconductor, communications and other industries), Therefore, laser micromachining poses a great challenge to ordinary micromachining.
Laser cutting has no burr, wrinkles and high precision, superior to plasma cutting. For many mechanical and electrical manufacturing industries, because the modern laser cutting system with microcomputer program can easily cut workpieces of different shapes and sizes (the drawing of workpieces can also be modified), it is often preferred to blanking and die pressing processes; Although its processing speed is slower than that of die stamping, it has no die consumption, no need to repair the die, and saves the time to replace the die, thus saving processing costs and reducing product costs. Therefore, it is more economical on the whole.
On the other hand, from the perspective of how to adapt the die to the changes in the design size and shape of the workpiece, laser cutting can also play its advantages of good reproducibility. As the preferred manufacturing method of laminated dies, laser cutting is not expensive because no die maker is needed, so the die manufacturing cost can be significantly reduced. The additional benefit of laser cutting the mold is that the mold trimming will produce a shallow hardening layer (heat affected zone). The non-contact characteristic of laser cutting brings the advantage of no stress to the circular saw blade cutting and forming, thus improving the service life.
Therefore, I believe that with the continuous development of laser cutting technology, its application field will be further expanded and applied to all walks of life!
