Efficient coupling of dual beam combined laser into micro water jet for deep processing

Abstract In order to improve the power and energy of water-jet-guided laser, this paper introduces a double beam water-jet-guided laser (DWJL) technology. Based spatially polarized light combination and temporal phase modulation, two lasers are effectively coupled into a water jet with diameter of 1...

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Main Authors: Ji Wang, Chunguang Chen, Guolong Wang, Kaijie Cheng, Wenwu Zhang
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-025-85552-8
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author Ji Wang
Chunguang Chen
Guolong Wang
Kaijie Cheng
Wenwu Zhang
author_facet Ji Wang
Chunguang Chen
Guolong Wang
Kaijie Cheng
Wenwu Zhang
author_sort Ji Wang
collection DOAJ
description Abstract In order to improve the power and energy of water-jet-guided laser, this paper introduces a double beam water-jet-guided laser (DWJL) technology. Based spatially polarized light combination and temporal phase modulation, two lasers are effectively coupled into a water jet with diameter of 100 μm. The maximum output peak power reaches 100 kW and the maximum pulse energy is 4.63 mJ with an operation frequency range from 1 to 20 kHz. The coupling efficiency is as high as 90.4%. Its efficient energy utilization offers new solutions for precision cutting and processing of thick materials. Ultimately, the machining capability of high-power/high-energy DWJL was demonstrated by cutting through 7075 aluminum alloys of varying thicknesses. The cutting depth reaches 10.61 mm, corresponding to a depth-to-width ratio of the cutting gap exceeds 90:1, and the taper is only approximately 0.23°. There is no heat-affected ablation zone on the processed surface. For deep micro holes processing, a minimum radius is 248.54 μm with a depth-to-diameter ratio of 21:1. As the ongoing development of DWJL technology, this innovation is anticipated to find broader applications in aerospace, automotive manufacturing, and high-end equipment manufacturing in the future.
format Article
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institution Kabale University
issn 2045-2322
language English
publishDate 2025-01-01
publisher Nature Portfolio
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series Scientific Reports
spelling doaj-art-a75e004e532444e399c9917d2ab2af8c2025-01-12T12:20:45ZengNature PortfolioScientific Reports2045-23222025-01-0115111410.1038/s41598-025-85552-8Efficient coupling of dual beam combined laser into micro water jet for deep processingJi Wang0Chunguang Chen1Guolong Wang2Kaijie Cheng3Wenwu Zhang4Ningbo Institute of Materials Technology and Engineering, Chinese Academy of ScienceNingbo Institute of Materials Technology and Engineering, Chinese Academy of ScienceNingbo Institute of Materials Technology and Engineering, Chinese Academy of ScienceNingbo Institute of Materials Technology and Engineering, Chinese Academy of ScienceNingbo Institute of Materials Technology and Engineering, Chinese Academy of ScienceAbstract In order to improve the power and energy of water-jet-guided laser, this paper introduces a double beam water-jet-guided laser (DWJL) technology. Based spatially polarized light combination and temporal phase modulation, two lasers are effectively coupled into a water jet with diameter of 100 μm. The maximum output peak power reaches 100 kW and the maximum pulse energy is 4.63 mJ with an operation frequency range from 1 to 20 kHz. The coupling efficiency is as high as 90.4%. Its efficient energy utilization offers new solutions for precision cutting and processing of thick materials. Ultimately, the machining capability of high-power/high-energy DWJL was demonstrated by cutting through 7075 aluminum alloys of varying thicknesses. The cutting depth reaches 10.61 mm, corresponding to a depth-to-width ratio of the cutting gap exceeds 90:1, and the taper is only approximately 0.23°. There is no heat-affected ablation zone on the processed surface. For deep micro holes processing, a minimum radius is 248.54 μm with a depth-to-diameter ratio of 21:1. As the ongoing development of DWJL technology, this innovation is anticipated to find broader applications in aerospace, automotive manufacturing, and high-end equipment manufacturing in the future.https://doi.org/10.1038/s41598-025-85552-8Water-jet-guided laserDual-beam combined laserMicro holes processingDepth-to-diameter ratioPolarization combinationLaser cutting
spellingShingle Ji Wang
Chunguang Chen
Guolong Wang
Kaijie Cheng
Wenwu Zhang
Efficient coupling of dual beam combined laser into micro water jet for deep processing
Scientific Reports
Water-jet-guided laser
Dual-beam combined laser
Micro holes processing
Depth-to-diameter ratio
Polarization combination
Laser cutting
title Efficient coupling of dual beam combined laser into micro water jet for deep processing
title_full Efficient coupling of dual beam combined laser into micro water jet for deep processing
title_fullStr Efficient coupling of dual beam combined laser into micro water jet for deep processing
title_full_unstemmed Efficient coupling of dual beam combined laser into micro water jet for deep processing
title_short Efficient coupling of dual beam combined laser into micro water jet for deep processing
title_sort efficient coupling of dual beam combined laser into micro water jet for deep processing
topic Water-jet-guided laser
Dual-beam combined laser
Micro holes processing
Depth-to-diameter ratio
Polarization combination
Laser cutting
url https://doi.org/10.1038/s41598-025-85552-8
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AT chunguangchen efficientcouplingofdualbeamcombinedlaserintomicrowaterjetfordeepprocessing
AT guolongwang efficientcouplingofdualbeamcombinedlaserintomicrowaterjetfordeepprocessing
AT kaijiecheng efficientcouplingofdualbeamcombinedlaserintomicrowaterjetfordeepprocessing
AT wenwuzhang efficientcouplingofdualbeamcombinedlaserintomicrowaterjetfordeepprocessing