The laser surface texturing of coated glass by picosecond laser with 355nm wavelength strongly absorbed by the glass is reported. The texturing was performed using various pulse energy and the distance of ablative single mark on the coated glass surface. In the performed experiment it was possible to control for the surface’s optical reflectance.
Presented in this article are the results of experiments carried out to determine the causes of braze cracking of dissimilar materials brazed with a ROFIN DL 020 high power diode laser with the use of additional powdered EN AW-1070A aluminium alloy to bond thin aluminium sheets with soft, low alloy DC04+ZE75/75 steel plate which was electrolytically coated with zinc on both sides. Presented are the results of metallographic, macroscopic, microscopic, diffractometric phase analyses of the weld joints. Metallurgical problems arising during processing as well as suggestions regarding technical aspects of laser brazing dissimilar materials in regards to their physical characteristics and chemical composition are explored.
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