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| 1 | DIAGONAL POINT BY POINT SURFACE DEVELOPMENT METHOD BASED ON NURBS SURFACE FOR BLANK SHAPE ESTIMATION OFCOVER PANEL显示文摘According to the characteristics of a complex cover panel, its geometry shape is describedby the NURBS surface with great description capability. With the reference to the surface classifica-tion determined by Gauss curvature, the proportion of the mid-surface area between before and afterbeing developed is derived from the displacement variation of the mid-surface in the normal vectordirection of the sheet metal during the sheet metal forming process. Hereby, based on the curve de-velopment theory in differential geometry, a novel diagonal point by point surface developmentmethod is put forward to estimate a complex cover panel’s blank contour efficiently. By comparingthe sample’s development result of diagonal point by point surface development method with that ofavailable one-step method, the validity of the proposed surface development method is verified. | Guo Yuqin Li Fuzhu Jiang Hong Wang Xiaochun | 2005 | Chinese Journal of Mechanical Engineering2005，18，3： | 1 |
| 2 | Basic study on pulse generator for micro-EDM显示文摘 | Han Fuzhu Chen Li Yu Dingwen | 2007 | The International Journal of Advanced Manufacturing Technology2007，33，： | 1 |
| 3 | An integrated manufacturing process of CFRP parts based on RFI and cutting process显示文摘 | Guo Yuqin Meng Zhao Li Fuzhu | | 0，，365： | 1 |
| 4 | Water-Jet Cavitation Shock Bulging as Novel Microforming Technique显示文摘With the continuous expansion of the application range of microelectromechanical systems,microdevice forming technology has achieved remarkable results.However,it is challenging to develop new microforming processes that are low cost,environmentally friendly,and highly flexible;the high-energy shock wave in a cavitation bubble's collapse process is used as the loading force.Herein,a new process for the microbulging of the water-jet cavitation is proposed.A series of experiments involving the water-jet cavitation shock microbulging process for TA2 titanium foil is performed on an experimental system.The microforming feasibility of the water-jet cavitation is investigated by characterizing the shape of the formed part.Subsequently,the effects of the main parameters of the water-jet cavitation on the bulging profile,forming depth,surface roughness,and bulging thickness distribution of TA2 titanium foil are revealed.The results show that the plastic deformation increases nonlinearly with the incident pressure.When the incident pressure is 20 MPa,the maximum deformation exceeds 240 pm,and the thickness thinning ratio changes within 10%.The microbulging feasibility of water-jet cavitation is verified by this phenomenon. | Fuzhu Li Haiyang Fan Yuqin Guo Zhipeng Chen Xu Wang Ruitao Li Hong Liu Yun Wang | 2021 | Chinese Journal of Mechanical Engineering2021，34，1： | 1 |
| 5 | On The Research of Foreign and Domestic Human Capital Theory显示文摘Human Capital Theory came into being in the middle and later periods of the 20th century. A lot of achievements have been made on the research in its connotation, measures of the value, investment and income, function mechanism and so on, by foreign scholars. In recent 10 years of the new Millennium alternation, the 'steal business effect' and the structure of human capital on the mechanism of economic rise has become the two emphasis in current foreign Human Capital Theory’s research. On the basis of foreign researches and Chinese situations, domestic scholars have enriched and developed it, but there are many disparities in its methods, aspects and levels between foreign and domestic researches. | Li Fuzhu School of Urban and Environmental Science, Northeast Normal University, Changchun 130024, China | 2005 | Chinese Journal of Population,Resources and Environment2005，3，4： | 0 |
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