Experimental study on waterjet guided laser efficient cutting of TA1 titanium

Binying Bao; Guangyi Zhang; Chunhai Guo; Yang Chao; Zhongan Chen; Wenwu Zhang

doi:10.1117/12.2691312

16 October 2023 Experimental study on waterjet guided laser efficient cutting of TA1 titanium

Binying Bao, Guangyi Zhang, Chunhai Guo, Yang Chao, Zhongan Chen, Wenwu Zhang

Proceedings Volume 12792, Eighteenth National Conference on Laser Technology and Optoelectronics; 127921L (2023) https://doi.org/10.1117/12.2691312
Event: Eighteenth National Conference on Laser Technology and Optoelectronics, 2023, Shanghai, China

Abstract

Waterjet guided laser processing demonstrates effective reduction of the heat-affected zone and defects, including micro-cracks, recast layers, and burrs compared with long-pulse laser processing. Moreover, it surpasses ultrashort pulse laser processing in terms of processing efficiency. In this study, we meticulously investigated the impact of various parameters, namely feed speed, cutting time, parallel paths distance, and the number of parallel paths, on the cutting efficiency and quality of 1mm thick TA1 titanium plates. Through meticulous analysis using a laser confocal microscope, we evaluated both the upper surface morphology and three-dimensional characteristics of the cuts. The results are as follows: (1) The cutting efficiency gradually declines with increasing cutting speed and reaches its peak at a cutting speed of 1 mm/s and a material removal rate of 12.14 m/s. (2) In the case of single path cutting, the processing efficiency gradually diminishes with time, and the depth ended up at 900μm. (3) The cutting efficiency experiences an initial increase followed by a subsequent decrease with the augmentation of the distance between parallel paths and the number of parallel paths. (4) By adopting a feed speed of 1 mm/s, parallel paths distance of 50μm, and employing 5 parallel paths, we achieved a remarkable 183% increase in the material removal rate in cutting titanium compared with before the optimization, moreover, the cutting time is reduced by 65%. The average surface roughness before and after optimization are 2.93μm and 2.94μm respectively. Our research provides a theoretical basis for the study of waterjet guided laser cutting of TA1 titanium.

Citation Download Citation

Binying Bao, Guangyi Zhang, Chunhai Guo, Yang Chao, Zhongan Chen, and Wenwu Zhang "Experimental study on waterjet guided laser efficient cutting of TA1 titanium", Proc. SPIE 12792, Eighteenth National Conference on Laser Technology and Optoelectronics, 127921L (16 October 2023); https://doi.org/10.1117/12.2691312

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KEYWORDS

Laser cutting

Titanium

Beam path

Laser processing

Alloys

Surface roughness

Laser applications

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