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What are the advantages of ultra-short pulse laser and traditional laser in material processing?

2022-02-09
The traditional laser uses the thermal accumulation of laser energy to melt and even volatilize the material in the active area. In the process, a large number of chips, micro-cracks and other processing defects will be generated, and the longer the laser lasts, the greater the damage to the material. The ultra-short pulse laser has an ultra-short interaction time with the material, and the single-pulse energy is super strong enough to ionize any material, realize non-hot-melt cold processing, and obtain the ultra-fine, low-damage processing advantages incomparable with long-pulse laser. At the same time, for the selection of materials, ultrafast lasers have wider applicability, which can be applied to metals, TBC coatings, composite materials, etc.

Very high machining accuracy. Different from the "rough" processing of traditional lasers, ultrafast lasers use the strong field effect of lasers to directly break molecular bonds, which can achieve ultra-"precision" cold processing of materials.


Comparison of the effect of long-pulse laser and femtosecond laser on materials (thermal effect)


Comparison of the effect of long-pulse laser and femtosecond laser on materials (processing accuracy)

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