Laser Star Engraving Machine
Two laser lettering methods. "Hot working" laser beam with higher energy density (it is a concentrated energy flow) is irradiated on the surface of the material being processed, and the surface of the material absorbs laser energy. Thermal excitation process, so that the temperature of the surface of the material (or coating) rises, resulting in metamorphosis, melting, ablation, evaporation and other phenomena. Application of laser engraver in products. CO2 laser marking machine: mainly used for non-metals (wood, acrylic, paper, leather, etc.), and the price is cheap. Green laser marking machine, UV laser marking machine: mainly used for high-end extremely fine IC and other products. The price is higher, and the product is mainly customized.
"Cold processing" (ultraviolet) photons with very high load energy can break chemical bonds in materials (especially organic materials) or surrounding media, causing non-thermal process destruction of materials. This Laser Star Engraving Machine cold processing is of special significance in laser marking processing, because it is not thermal ablation, but cold peeling that breaks the chemical bonds without the side effect of "heat damage", so it can damage the inner layer of the processed surface Does not cause heating or thermal deformation in the vicinity. For example, in the electronics industry, excimer lasers are used to deposit a thin film of a chemical substance on a substrate material to create narrow grooves in a semiconductor substrate.