Experimental study on infrared water guided laser cutting of 7075 aluminum alloy

Zebin Pan; Guangyi Zhang; Chunhai Guo; Yang Chao; Yaowen Wu; Huan Long; Wenwu Zhang

doi:10.1117/12.2603052

31 August 2021 Experimental study on infrared water guided laser cutting of 7075 aluminum alloy

Zebin Pan, Guangyi Zhang, Chunhai Guo, Yang Chao, Yaowen Wu, Huan Long, Wenwu Zhang

Proceedings Volume 11907, Sixteenth National Conference on Laser Technology and Optoelectronics; 119071T (2021) https://doi.org/10.1117/12.2603052
Event: Sixteenth National Conference on Laser Technology and Optoelectronics, 2021, Shanghai, China

Abstract

As a novel composite processing technology, water guided laser has the advantages of small heat affected zone, good surface quality of the cut surface, strong processing depth capability and small taper compared with the traditional dry laser processing technology. In this paper, the infrared water guided laser processing technology is used to process 7075 aluminum alloy, which has high strength, high toughness and corrosion resistance and is widely used in the fields of aerospace, mechanical equipment. The processing parameters of the infrared water guided laser including the effect of 7075 aluminum alloy on the cutting depth, kerf width and surface quality at different feed speed, number of cutting times and peak power are analyzed to extend the processing method of 7075 aluminum alloy. The distance-power curve was also derived based on the fact that the further the power meter was from the nozzle, the lower the power measured within the water column. The experimental results show that the faster the 7075 aluminum alloy feed speed is, the shallower the cutting depth and the smaller the kerf width is, while the higher the number of cuts and the higher the peak power are, both will result in large cutting depth and kerf width. Finally, high quality cutting through and punching of 3mm aluminum alloy plate is achieved, which provides the theoretical basis for the study to infrared water guided laser.

Citation Download Citation

Zebin Pan, Guangyi Zhang, Chunhai Guo, Yang Chao, Yaowen Wu, Huan Long, and Wenwu Zhang "Experimental study on infrared water guided laser cutting of 7075 aluminum alloy", Proc. SPIE 11907, Sixteenth National Conference on Laser Technology and Optoelectronics, 119071T (31 August 2021); https://doi.org/10.1117/12.2603052

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KEYWORDS

Aluminum

Laser cutting

Laser processing

Infrared lasers

Infrared radiation

Laser applications

Laser energy

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