The forming of microgroove in copper foil on multiple laser-induced cavitation impacts

Wang, Liangliang; Deng, Yu; Zou, Zhixiang; Xiao, Yingjie; Su, Guokang; Guo, Zhongning

doi:10.1016/j.jmapro.2022.04.019

Cited by 9 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, when aluminum foil is subjected to plastic deformation under impact force, the thickness thinning is a significant criterion for evaluating sheet metal, and as a consequence, the local fractures will occur under the condition of severe thinning [33]. It is important to note that the thickness thinning of structures plays a role in their hardness [29]. Thus, this section studied the relationship between thickness thinning and hardness to understand its mechanisms.…”

Section: Thickness Distribution and Hardness Analysismentioning

confidence: 99%

“…The maximum thinning of the microgroove section occurs at the entrance of the mold (positions 2 and 8). This is because when aluminum foil is subjected to the instanta neous impact of laser-induced cavitation, the contact friction between the mold and the aluminum foil increases the flow resistance of the sheet metal, making it difficult for the aluminum foil to flow into the mold cavity [29]. As a consequence, the material matching the mold cavity is stretched and bent by the impact force, resulting in the aluminum foi near the entrance to the mold being thinned the most severely.…”

Section: Thickness Distribution and Hardness Analysismentioning

confidence: 99%

“…More recently, in the laser-induced cavitation bubble formation process, thickness thinning has been extensively investigated [27,28]. Nonetheless, the thickness thinning of the axisymmetric structure (i.e., groove) has been poorly investigated [29]. Furthermore, it should be noted that the thickness thinning of structures plays a role in their hardness.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experiment and Simulation Study of the Laser-Induced Cavitation Bubble Technique for Forming a Microgroove in Aluminum Foil

Wang,

Su,

Jia

et al. 2023

Micromachines

Self Cite

View full text Add to dashboard Cite

The present work introduces a laser-induced cavitation bubble technique for forming an axisymmetric structure (i.e., microgroove) and the dynamics of a cavitation bubble from initial expansion to the collapse stages that were also simulated. Furthermore, the shock wave signals and dynamic properties of the cavitation bubble were recorded using a hydrophone and a high-speed camera. The experiments on microgrooves formed by laser-induced cavitation bubble stamping were carried out, and the effects of laser energy, the initial position of the bubble, and the number of impacts on the microformability of aluminum sheets are discussed. The depth of the microgroove was investigated using experiments, and it was found that the process can serve as a rapid technique for impressing microfeatures on thin-sheet metals. The experimental results showed that as the initial position of the bubble increased, the deformation depth decreased. As the laser energy and number of impacts increased, the deformation depth increased. The results of the response surface experiments showed that a laser energy of 27 mJ, 3 impacts, and a bubble position of 3 mm were optimal for the process. By using the optimal parameters, flat and smooth microgrooves with a forming depth of 102.54 µm were successfully fabricated. Furthermore, the maximum thickness thinning of the microgroove section occurred at the entrance areas, and this area had the greatest hardness. This also indicated that the greatest amount of plastic deformation of the material and grain refinement occurred in this area. On the other hand, the aluminum foil did not undergo oxidation during the plastic deformation process. These results demonstrated that laser-induced bubble stamping is an advanced micromachining method with promising applications.

show abstract

Section: Thickness Distribution and Hardness Analysismentioning

confidence: 99%

Section: Thickness Distribution and Hardness Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experiment and Simulation Study of the Laser-Induced Cavitation Bubble Technique for Forming a Microgroove in Aluminum Foil

Wang,

Su,

Jia

et al. 2023

Micromachines

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, as a punch-less forming technology, a work-piece only can be formed by laser-induced cavitation within the need for optics devices, which brings some issues of cost and accuracy. 13 In addition, Xiong et al 14 established a micro-jet impact model and a micro-jet velocity inversion model to quantitatively characterize the cavitation erosion process and cavitation degree, respectively, to specify the water jet cavitation forming technology. However, their proposed models are only reliable when the cavitation pit diameter-to-depth ratio is approximate to 1 which cannot adapt to various situations.…”

Section: Introductionmentioning

confidence: 99%

Deformation and fracture behaviors of graded 2 titanium ultra-thin metallic sheets in water cavitation micro-forming

Wang

et al. 2022

Advances in Mechanical Engineering

View full text Add to dashboard Cite

Water cavitation micro-forming (WCMF) with high quantum efficiency and excellent accuracy are essential for the applications in micro-forming. In this study, based on the size effects, an effective regulation of the cavitation micro-forming was realized. Surprisingly, micro-forming of graded 2 titanium ultra-thin metallic sheets was retained at field of special forming with WCMF. Based on the Hugoniot Elastic Limit of the material, the deformation and fracture behaviors of the case were effectively modified via water-jet shock time varying. In addition, the relationship between the deformation and the fracture of the material and the obtained water-jet cavitation shock time was established. Particularly, the cavitation energy displayed a high efficiency (within 90 s) and have a significant contribution to the appearance of the parabolic dimples. Therefore, this work opens up new opportunities for the development of special forming with excellent micro-forming performance through manipulation of water-jet cavitation shock time.

show abstract

Wear behavior of copper material removal during fluid jet polishing: A comparative study between experiment and simulation

Zhang,

et al. 2024

Friction

View full text Add to dashboard Cite

As a crucial part in micro-electromechanical manufacture, local ultra-precision processing of highly ductile copper is expected to be realized by fluid jet polishing (FJP), which widely utilized in optical elements. Since copper exhibits different wear behavior from stiff and brittle material, there is currently no abrasive wear prediction model applicable for copper to investigate the polishing mechanism. This research reveals that the copper material removal is dominated by deformation wear rather than cutting wear through abrasive jet impact experiments and localized wear scars analysis. A three-dimensional gas-liquid-particle triphasic wear model for copper in FJP is developed by considering impact energy and wear mechanism simultaneously. Ultimately, validation assessments at various working pressures and impingement angles achieve the goodness-of-fit up to 0.92–0.97 in quantitative comparison between simulations and experimental measurements, which demonstrate the wear prediction ability of the proposed model. This investigation facilitates a better understanding of copper wear mechanism and provides theoretical guidance for FJP process optimization.

show abstract

The forming of microgroove in copper foil on multiple laser-induced cavitation impacts

Cited by 9 publications

References 26 publications

Experiment and Simulation Study of the Laser-Induced Cavitation Bubble Technique for Forming a Microgroove in Aluminum Foil

Experiment and Simulation Study of the Laser-Induced Cavitation Bubble Technique for Forming a Microgroove in Aluminum Foil

Deformation and fracture behaviors of graded 2 titanium ultra-thin metallic sheets in water cavitation micro-forming

Wear behavior of copper material removal during fluid jet polishing: A comparative study between experiment and simulation

Contact Info

Product

Resources

About