Ploughing-extrusion mechanism of V-shaped capillary micro-grooves based on surface of copper strip
Using ploughing-extrusion process, the V-shaped capillary micro-grooves based on the surface of copper strip with thickness of 0.4 mm were obtained. When the ploughing depth is 0.3 mm and the groove interval is 0.24 mm, the groove width of the obtained structure is about 200 μm, the groove depth is...
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Published in | Transactions of Nonferrous Metals Society of China Vol. 16; no. A02; pp. 277 - 282 |
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Main Author | |
Format | Journal Article |
Language | English |
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College of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China
01.09.2006
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Subjects | |
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Abstract | Using ploughing-extrusion process, the V-shaped capillary micro-grooves based on the surface of copper strip with thickness of 0.4 mm were obtained. When the ploughing depth is 0.3 mm and the groove interval is 0.24 mm, the groove width of the obtained structure is about 200 μm, the groove depth is above 400 μm, and the angle of grooves is less than 30°. The formation mechanism of ploughing-extrusion was analyzed using scanning electron microscope (SEM). The results show that the formation process consists of four steps, i.e. splitting-ploughing, extruding, forming and truing. There exist two critical states during the formation process. In the first state, a smooth U-shaped groove appears between two V-shaped grooves, and the compounded structure which comprised of V-shaped grooves and U-shaped grooves is obtained. In the second state, the U-shaped groove is evolved into a narrow crack, and the resulted V-shaped capillary macro-groove structure contains symmetric V-shaped grooves and narrow cracks. These two critical states are restricted by the groove interval (w) and the ploughing depth (ap), and related on the tool parameters simultaneously. |
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AbstractList | Using ploughing-extrusion process, the V-shaped capillary micro-grooves based on the surface of copper strip with thickness of 0.4 mm were obtained. When the ploughing depth is 0.3 mm and the groove interval is 0.24 mm, the groove width of the obtained structure is about 200 mum, the groove depth is above 400 mum, and the angle of grooves is less than 30 deg . The formation mechanism of ploughing-extrusion was analyzed using scanning electron microscope (SEM). The results show that the formation process consists of four steps, i.e. splitting-ploughing, extruding, forming and truing. There exist two critical states during the formation process. In the first state, a smooth U-shaped groove appears between two V-shaped grooves, and the compounded structure which comprised of V-shaped grooves and U-shaped grooves is obtained. In the second state, the U-shaped groove is evolved into a narrow crack, and the resulted V-shaped capillary macro-groove structure contains symmetric V-shaped grooves and narrow cracks. These two critical states are restricted by the groove interval (w) and the ploughing depth (ap), and related on the tool parameters simultaneously. TG1; Using ploughing-extrusion process, the V-shaped capillary micro-grooves based on the surface of copper strip with thickness of 0.4 mm were obtained. When the ploughing depth is 0.3 mm and the groove interval is 0.24 mm, the groove width of the obtained structure is about 200 μm, the groove depth is above 400 μm, and the angle of grooves is less than 30° The formation mechanism of ploughing-extrusion was analyzed using scanning electron microscope (SEM). The results show that the formation process consists of four steps, i.e. splitting-ploughing, extruding, forming and truing. There exist two critical states during the formation process. In the first state, a smooth U-shaped groove appears between two V-shaped grooves, and the compounded structure which comprised of V-shaped grooves and U-shaped grooves is obtained. In the second state, the U-shaped groove is evolved into a narrow crack, and the resulted V-shaped capillary macro-groove structure contains symmetric V-shaped grooves and narrow cracks. These two critical states are restricted by the groove interval (w) and the ploughing depth (ap), and related on the tool parameters simultaneously. Using ploughing-extrusion process, the V-shaped capillary micro-grooves based on the surface of copper strip with thickness of 0.4 mm were obtained. When the ploughing depth is 0.3 mm and the groove interval is 0.24 mm, the groove width of the obtained structure is about 200 μm, the groove depth is above 400 μm, and the angle of grooves is less than 30°. The formation mechanism of ploughing-extrusion was analyzed using scanning electron microscope (SEM). The results show that the formation process consists of four steps, i.e. splitting-ploughing, extruding, forming and truing. There exist two critical states during the formation process. In the first state, a smooth U-shaped groove appears between two V-shaped grooves, and the compounded structure which comprised of V-shaped grooves and U-shaped grooves is obtained. In the second state, the U-shaped groove is evolved into a narrow crack, and the resulted V-shaped capillary macro-groove structure contains symmetric V-shaped grooves and narrow cracks. These two critical states are restricted by the groove interval (w) and the ploughing depth (ap), and related on the tool parameters simultaneously. |
Author | 池勇 汤勇 陈锦昌 邓学雄 刘林 刘小康 刘晓晴 |
AuthorAffiliation | College of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China |
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Snippet | Using ploughing-extrusion process, the V-shaped capillary micro-grooves based on the surface of copper strip with thickness of 0.4 mm were obtained. When the... TG1; Using ploughing-extrusion process, the V-shaped capillary micro-grooves based on the surface of copper strip with thickness of 0.4 mm were obtained. When... |
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Title | Ploughing-extrusion mechanism of V-shaped capillary micro-grooves based on surface of copper strip |
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