Research on the Influence of Water-Laser Coupling Cavity and Nozzle Structure on the Flow Characteristics of Water Beam Fiber

Liu, Qian; Zhao, Yugang; Meng, Jianbing; Zhao, Guoyong; Li, Li; Zhou, Haian; Wang, Ke; Liu, Guangxin; Cao, Chen; Zheng, Zhilong

doi:10.1007/s40997-022-00524-x

Cited by 6 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In summary, the gas reduces the kinetic energy loss of the water jet and increases the length of the stable section of the water jet. In addition, the stability of the water jet depends on the nozzle structure [15]. Therefore, the trumpet nozzle is used in the experiment to enhance the reliability of the water jet.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

Annular gas-assisted water jet guided laser manufacturing groove structure of Inconel 718 alloy

Zhao¹,

Zhao

Zhao³

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

Inconel 718 offers high oxidation resistance, mechanical strength, and heat resistance, which enables turbofan engines to maintain excellent performance in an operating environment of 1000°C. These properties make Inconel 718 difficult to machine by conventional machining techniques. Water jet guided laser (WJGL) is a composite processing technology that combines water cooling and laser processing technology. Therefore, it is advantageous and promising in processing Inconel 718. However, the water layer on the substrate surface in processing limits WJGL 's ability to ablate the metal, which leads to burrs formed when manufacturing groove structures. Therefore, a new method for manufacturing groove structure on Inconel 718 by Annular gas-assisted water jet guided laser (AGAWJGL) is proposed in this paper. This method reduces burrs and improves material removal efficiency by removing the water layer from the substrate surface with the gas-assisted. Then, groove processing experiment are performed on Inconel 718 alloy sheets with thickness of 1 mm. The experimental results show that the average size of burrs reduces 36%, and the depth of grooves increases 13%. These provide the theoretical foundation for the WJGL machining of Inconel 718.

show abstract

Section: Simulation Results and Discussionmentioning

confidence: 99%

Annular gas-assisted water jet guided laser manufacturing groove structure of Inconel 718 alloy

Zhao¹,

Zhao

Zhao³

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…The diameter of the waterjet nozzle used in this paper was 0.3 m; the nozzle model and real object are shown in Figure 17 [ 35 ]. When the high-pressure waterjet is ejected from the nozzle hole, the phenomenon of shrinkage will occur.…”

Section: Resultsmentioning

confidence: 99%

Experimental Research and Optimization of Ti-6Al-4V Alloy Microgroove Machining Based on Waterjet-Guided High-Power Laser

et al. 2022

Self Cite

View full text Add to dashboard Cite

In order to improve the tribological properties of Ti-6Al-4V alloy and further broaden the application scope of titanium alloy materials in the industrial field, a preparation method of a waterjet-guided high-power laser processing surface microgroove was studied. In this paper, a multifocus coupling lens was innovatively designed to replace the spherical lens in the traditional waterjet-guided laser coupling device, which avoids the gas explosion phenomenon in the coupling of the high-power laser and waterjet, and realizes the high-quality coupling of the high-power laser and water beam fiber. Then, with the microgroove morphology as the response target, the single-factor test and response surface test of the water-guided laser processing microgroove were carried out. Based on the experimental results, an approximate mathematical model of the response surface between the process parameters and the microgroove topography target was constructed, and the quantitative relationship between the waterjet-guided laser processing parameters and the target response was studied. At the same time, the optimal combination of process parameters was obtained by multiobjective optimization, so as to effectively improve the microgroove morphology. This technology provides method guidance and a decision-making reference for subsequent waterjet-guided laser processing of titanium alloy surface functional microstructures.

show abstract

“…It has attracted extensive attention from many researchers due to its small heat-affected zone, high precision, and lack of pollution. In addition, water and laser simultaneously act on the processing area, so it can cool the processing area well and wash away the molten material, which can almost eliminate the heat-affected zone and the recast layer [17][18][19][20][21]. Li et al [22,23] proposed a simulation model of water-guided laser drilling silicon to simulate the temperature field distribution and phase change removal process during laser irradiation.…”

Section: Water-guided Laser Processingmentioning

confidence: 99%

Section: Water-guided Laser Processingmentioning

confidence: 99%

Research Progress of Water–Laser Compound Machining Technology

et al. 2022

View full text Add to dashboard Cite

As an emerging industry, laser processing technology has developed rapidly and has gradually become a key technology in transforming traditional manufacturing. It has been widely used in various fields such as industrial production, communication technology, information processing, health care, military, and scientific research. The application and development of laser processing technology is restricted by thermal damage and the processing residues existing in traditional laser processing. However, water laser compound machining can better solve the above-mentioned problems. In water laser compound machining, heat and byproducts can be absorbed and taken away by water to improve processing quality. This paper expounds and analyzes the principles and research of three popular water laser compound machining methods (water-guided laser processing, underwater laser processing and water-jet-assisted laser processing). Furthermore, this paper analyzes the technical difficulties in water laser compound machining and looks forward to the future development trends of this technology.

show abstract

Research on the Influence of Water-Laser Coupling Cavity and Nozzle Structure on the Flow Characteristics of Water Beam Fiber

Cited by 6 publications

References 30 publications

Annular gas-assisted water jet guided laser manufacturing groove structure of Inconel 718 alloy

Annular gas-assisted water jet guided laser manufacturing groove structure of Inconel 718 alloy

Experimental Research and Optimization of Ti-6Al-4V Alloy Microgroove Machining Based on Waterjet-Guided High-Power Laser

Research Progress of Water–Laser Compound Machining Technology

Contact Info

Product

Resources

About