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您的检索式：作者名="Zhangrui GAO"
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| 1 | Analysis and comparison of laser cutting performance of solar float glass with different scanning modes显示文摘Cutting quality and efficiency have always been important indicators of glass laser cutting.Laser scanning modes have two kinds,namely,the spiral and concentric circle scanning modes.These modes can achieve high-performance hole cutting of thick solar float glass using a 532-nm nanosecond laser.The mechanism of the glass laser cutting under these two different scanning modes has been described.Several experiments are conducted to explore the effect of machining parameters on cutting efficiency and quality under these two scanning modes.Results indicate that compared with the spiral scanning mode,the minimum area of edge chipping(218340µm)and the minimum Ra(3.01µm)in the concentric circle scanning mode are reduced by 9.4%and 16.4%respectively.Moreover,the best cutting efficiency scanning mode is 14.2%faster than that in the spiral scanning mode.The best parameter combination for the concentric circle scanning mode is as follows:Scanning speed:2200 mm/s,number of inner circles:6,and circle spacing:0.05 mm.This parameter combination reduces the chipping area and sidewall surface roughness by 8.8%and 9.6%respectively at the same cutting efficiency compared with the best spiral processing parameters.The range of glass processing that can be achieved in the concentric circle scanning mode is wider than that in the spiral counterpart.The analyses of surface topography,white spots,microstructures,and sidewall surface element composition are also performed.The study concluded that the concentric circle scanning mode shows evident advantages in the performance of solar float glass hole cutting. | Wenyuan LI Yu HUANG Youmin RONG Long CHEN Guojun ZHANG Zhangrui GAO | 2021 | Frontiers of Mechanical Engineering2021，16，1： | 1 |
| 2 | Dimethicone-aided laser cutting of solar rolled glass显示文摘Solar rolled glass,with one micro-structure surface and another roughness surface,can cause diffuse refraction of the focused laser spot,and this phenomenon restricts the application of laser manufacturing.In this study,laser cutting of solar rolled glass with a thickness of 2.5 mm was successfully achieved with the help of dimethicone to ensure laser focusing.Dimethicone was coated on the top surface of the rolled glass processing zone,and a bottom–up multilayer increment with the spiral line was applied to control the cutting path.Different viscosity values of dimethicone were considered.Results showed that surface quality increased as the viscosity increased until a certain threshold was reached;afterward,the surface quality decreased or directly caused the cutting to fail.The minimum surface roughness(3.26µm)of the processed surface(chipping:Width≤113.64µm,area 215199µm)was obtained when the dimethicone viscosity and laser pulse frequency were 1000 mm/s and 43 kHz(power 25.4 W),respectively.The micro-defects on the processed surface were few,and the edge chipping width and depth of the laser processed surface were small. | Wenyuan LI Guojun ZHANG Long CHEN Yu HUANG Youmin RONG Zhangrui GAO | 2021 | Frontiers of Mechanical Engineering2021，16，1： | 0 |
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