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Ploughing-extrusion mechanism of V-shaped capillary micro-grooves based on surface of copper strip CHI Yong(池 勇), TANG Yong(汤 勇), CHEN Jin-chang(陈锦昌), DENG Xue-xiong(邓学雄), LIU Lin(刘 林), LIU Xiao... 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......
; Abstract: Using ploughing-extrusion method, a cross-connected...) and the minor extrusion angle are 30?, both the major formation angle (β) and the minor formation angle (β′) are 10?, the ploughing-extrusion depth (fd) is 0.32 mm and the groove pitch is 0.4 mm......
; Abstract: Using rolling-ploughing-extrusion compound processing methods, a 3D integral-fin structure on outside surface of red copper tube with diameter of 16.0 mm and wall thickness of 1.5 mm was obtained. When both rolling depth and ploughing-extrusion (P-E) depth were......
; 1 mm were processed by the ploughing-extrusion (P-E) processing method, which is one part of the phase-change heat sink for high power (HP) light emitting diode (LED). The experimental results show.... Key words: phase-change heat sink; boiling structure; high power light emitting diode; ploughing-extrusion ......
and manufactured by ploughing-extrusion (P-E) machining method. The forming process and mechanism were analyzed. The results show that the P-E depth plays a decisive role in forming of wick structure..., ringed groove spacing of 0.4 mm, and axial grooves spacing of π/3 mm. Key words: heat column; wick; ploughing-extrusion; heat transfer; micro-groove 1 Introduction The heat......
that the developed phase change heat sink has excellent heat transfer performance and is suitable for high power LED applications. Key words: high power LED; phase change heat sink; ploughing-extrusion... method cannot be applied to machining the boiling structure at the bottom of the evaporation side. Accordingly, ploughing-extrusion and stamping methods with the assistance of special clamping were......
is composed of a spiral micro-groove and multi radial micro-grooves. Both ploughing-extrusion (P-E) and stamping were used to form the integral-fins with a connection between radial and circumferential... be obtained under such processing conditions: P-E depth ap=0.3 mm, ac=0.3 mm, the interval of helical groove dp=1.24 mm, θc=2° and np=50 r/min.Key words:three-dimensional integral fin; ploughing......
surface were composed of a spiral micro-groove along circumferential direction and radial micro-grooves which were processed by ploughing-extrusion (P-E) and stamping, respectively. Meanwhile, the cycle... of spiral and radial micro-grooves was processed by ploughing-extrusion (P-E) and stamping, respectively. And the relationships between forming parameters were analyzed. Furthermore, copper powder......
the process of manufacturing, ploughing-extrusion method is first adopted to machine spiral microgroove at the evaporation end, and based on this, radial microgroove structure is machined through stamping... of formation of boiling structures at evaporation end: As the crucial manufacturing process, the ploughing-extrusion forming method could be divided into three steps. Firstly, by adjusting ploughing depths......
Yong, TANG Yong, CHEN Jin-chang, DENG Xue-xiong, LIU Lin, LIU Xiao-kang, LIU Xiao-qing. Ploughing-extrusion mechanism of V-shaped capillary micro-grooves based on surface of copper strip [J]. Trans.... A patented MHP sealing technology uses a pair of concave-convex moulds to form an extrusion sealed structure[9]. Another presents a double layer sealing structure manufactured by transverse compression......
