The Experts below are selected from a list of 69 Experts worldwide ranked by ideXlab platform
Gong Chen - One of the best experts on this subject based on the ideXlab platform.
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investigation on Fiber laser cutting of polyacrylonitrile based Carbon Fiber Tow
Journal of Materials Processing Technology, 2019Co-Authors: Huilong Liu, Yingxi Xie, Yong Tang, Wei Yuan, Gong ChenAbstract:Abstract Carbon Fibers (CFs) are often chopped through conventional metal cutting tools. The wear of cutting tool is unavoidable, resulting in low productivity and unsteady product quality. In this work, cutting CFs by Fiber laser was studied. The laser absorptivities of three types of CFs and sizing amounts were measured to evaluate their photothermal conversion properties. The cutting-off mechanism of CF was clarified by its kerf cross-sectional morphology and multiphysics simulations. The morphology, chemical composition and mechanical properties around the CF kerf were analyzed to investigate the characteristics of laser cutting method. In addition, the effect of laser parameters and sizing amounts on CF Tow cutting were investigated. Results show that laser-cutting CF in the heat affected zone has poor mechanical properties compared to mechanical cutting CF, but composite nonwoven fabrics made by either of them have substantially equal tensile strength. The critical cutting-off speed of the three CFs has a linear relationship with the laser power. Compared to mechanical cutting, laser cutting of CF Tows can reduce about 50% energy consumption. And the laser cutting speed can be adjusted within a large range, whereas the mechanical cutting speed is only determined within a relatively narrow range. This low-energy consumption and speed-adjustable cutting method shows great potential to produce chopped CF-based high-quality composites.
Yingxi Xie - One of the best experts on this subject based on the ideXlab platform.
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investigation on Fiber laser cutting of polyacrylonitrile based Carbon Fiber Tow
Journal of Materials Processing Technology, 2019Co-Authors: Huilong Liu, Yingxi Xie, Yong Tang, Wei Yuan, Gong ChenAbstract:Abstract Carbon Fibers (CFs) are often chopped through conventional metal cutting tools. The wear of cutting tool is unavoidable, resulting in low productivity and unsteady product quality. In this work, cutting CFs by Fiber laser was studied. The laser absorptivities of three types of CFs and sizing amounts were measured to evaluate their photothermal conversion properties. The cutting-off mechanism of CF was clarified by its kerf cross-sectional morphology and multiphysics simulations. The morphology, chemical composition and mechanical properties around the CF kerf were analyzed to investigate the characteristics of laser cutting method. In addition, the effect of laser parameters and sizing amounts on CF Tow cutting were investigated. Results show that laser-cutting CF in the heat affected zone has poor mechanical properties compared to mechanical cutting CF, but composite nonwoven fabrics made by either of them have substantially equal tensile strength. The critical cutting-off speed of the three CFs has a linear relationship with the laser power. Compared to mechanical cutting, laser cutting of CF Tows can reduce about 50% energy consumption. And the laser cutting speed can be adjusted within a large range, whereas the mechanical cutting speed is only determined within a relatively narrow range. This low-energy consumption and speed-adjustable cutting method shows great potential to produce chopped CF-based high-quality composites.
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Fracture behavior of PAN-based Carbon Fiber Tow in a chopping process on an elastic support
Fibers and Polymers, 2016Co-Authors: Yingxi Xie, Zhaorui Hou, Yong Tang, Miao Limei, Xiaokang LiuAbstract:As useful composite reinforcements, chopped Carbon Fibers are usually manufactured by elastic support-based chopping technologies, such as radial chopping technology. In this paper, the fracture behavior of a polyacrylonitrile (PAN)- based Carbon Fiber Tow being chopped on an elastic support was analyzed. The fracture behavior and failure mode of the chopped Carbon Fiber Tow were tested and discussed. Due to that the failure mode of a Carbon Fiber being chopped on an elastic support is flexural fracture, some interesting properties are appeared in the chopping process of PAN-based CF Tow, such as robustness of the blade edge radius and failure order of the Tow.
Yong Tang - One of the best experts on this subject based on the ideXlab platform.
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investigation on Fiber laser cutting of polyacrylonitrile based Carbon Fiber Tow
Journal of Materials Processing Technology, 2019Co-Authors: Huilong Liu, Yingxi Xie, Yong Tang, Wei Yuan, Gong ChenAbstract:Abstract Carbon Fibers (CFs) are often chopped through conventional metal cutting tools. The wear of cutting tool is unavoidable, resulting in low productivity and unsteady product quality. In this work, cutting CFs by Fiber laser was studied. The laser absorptivities of three types of CFs and sizing amounts were measured to evaluate their photothermal conversion properties. The cutting-off mechanism of CF was clarified by its kerf cross-sectional morphology and multiphysics simulations. The morphology, chemical composition and mechanical properties around the CF kerf were analyzed to investigate the characteristics of laser cutting method. In addition, the effect of laser parameters and sizing amounts on CF Tow cutting were investigated. Results show that laser-cutting CF in the heat affected zone has poor mechanical properties compared to mechanical cutting CF, but composite nonwoven fabrics made by either of them have substantially equal tensile strength. The critical cutting-off speed of the three CFs has a linear relationship with the laser power. Compared to mechanical cutting, laser cutting of CF Tows can reduce about 50% energy consumption. And the laser cutting speed can be adjusted within a large range, whereas the mechanical cutting speed is only determined within a relatively narrow range. This low-energy consumption and speed-adjustable cutting method shows great potential to produce chopped CF-based high-quality composites.
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Fracture behavior of PAN-based Carbon Fiber Tow in a chopping process on an elastic support
Fibers and Polymers, 2016Co-Authors: Yingxi Xie, Zhaorui Hou, Yong Tang, Miao Limei, Xiaokang LiuAbstract:As useful composite reinforcements, chopped Carbon Fibers are usually manufactured by elastic support-based chopping technologies, such as radial chopping technology. In this paper, the fracture behavior of a polyacrylonitrile (PAN)- based Carbon Fiber Tow being chopped on an elastic support was analyzed. The fracture behavior and failure mode of the chopped Carbon Fiber Tow were tested and discussed. Due to that the failure mode of a Carbon Fiber being chopped on an elastic support is flexural fracture, some interesting properties are appeared in the chopping process of PAN-based CF Tow, such as robustness of the blade edge radius and failure order of the Tow.
Huilong Liu - One of the best experts on this subject based on the ideXlab platform.
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investigation on Fiber laser cutting of polyacrylonitrile based Carbon Fiber Tow
Journal of Materials Processing Technology, 2019Co-Authors: Huilong Liu, Yingxi Xie, Yong Tang, Wei Yuan, Gong ChenAbstract:Abstract Carbon Fibers (CFs) are often chopped through conventional metal cutting tools. The wear of cutting tool is unavoidable, resulting in low productivity and unsteady product quality. In this work, cutting CFs by Fiber laser was studied. The laser absorptivities of three types of CFs and sizing amounts were measured to evaluate their photothermal conversion properties. The cutting-off mechanism of CF was clarified by its kerf cross-sectional morphology and multiphysics simulations. The morphology, chemical composition and mechanical properties around the CF kerf were analyzed to investigate the characteristics of laser cutting method. In addition, the effect of laser parameters and sizing amounts on CF Tow cutting were investigated. Results show that laser-cutting CF in the heat affected zone has poor mechanical properties compared to mechanical cutting CF, but composite nonwoven fabrics made by either of them have substantially equal tensile strength. The critical cutting-off speed of the three CFs has a linear relationship with the laser power. Compared to mechanical cutting, laser cutting of CF Tows can reduce about 50% energy consumption. And the laser cutting speed can be adjusted within a large range, whereas the mechanical cutting speed is only determined within a relatively narrow range. This low-energy consumption and speed-adjustable cutting method shows great potential to produce chopped CF-based high-quality composites.
Wei Yuan - One of the best experts on this subject based on the ideXlab platform.
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investigation on Fiber laser cutting of polyacrylonitrile based Carbon Fiber Tow
Journal of Materials Processing Technology, 2019Co-Authors: Huilong Liu, Yingxi Xie, Yong Tang, Wei Yuan, Gong ChenAbstract:Abstract Carbon Fibers (CFs) are often chopped through conventional metal cutting tools. The wear of cutting tool is unavoidable, resulting in low productivity and unsteady product quality. In this work, cutting CFs by Fiber laser was studied. The laser absorptivities of three types of CFs and sizing amounts were measured to evaluate their photothermal conversion properties. The cutting-off mechanism of CF was clarified by its kerf cross-sectional morphology and multiphysics simulations. The morphology, chemical composition and mechanical properties around the CF kerf were analyzed to investigate the characteristics of laser cutting method. In addition, the effect of laser parameters and sizing amounts on CF Tow cutting were investigated. Results show that laser-cutting CF in the heat affected zone has poor mechanical properties compared to mechanical cutting CF, but composite nonwoven fabrics made by either of them have substantially equal tensile strength. The critical cutting-off speed of the three CFs has a linear relationship with the laser power. Compared to mechanical cutting, laser cutting of CF Tows can reduce about 50% energy consumption. And the laser cutting speed can be adjusted within a large range, whereas the mechanical cutting speed is only determined within a relatively narrow range. This low-energy consumption and speed-adjustable cutting method shows great potential to produce chopped CF-based high-quality composites.