Junwei Cheng

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—The cutting is an important machining technology, in which is belong to nonlinear large deformation, involving material nonlinear, geometry nonlinear and original bug, the thermal energy coupling question, and the nonlinear boundary condition, and so on. For the processing of metal cutting, using the large-scale commercial finite element theory, the(More)
"Mechanical Manufacturing Technology" is a major course of specialized skill for students majoring in machinery and near-mechanical engineering. Machining processes are one of the important contents in this course. The machining processes of some typical parts like box-body class parts, axis class parts, sleeve class parts and so on are one of the important(More)
To analyze the forming rules of the width dimensions reduction change of wide-thick plate head regional, the coupled heat rolling model of was created by the theory of the nonlinear finite element. Under the base of constant wide-thick plate width and different side pressing regulations, the forming rules were obtained for wide-thick plate head width(More)
The simulation model of hot rolling coupling was established using finite element method base on studying and analyzing of universal rolling method for H-beam. The distribution of temperature field and stress field in contact area as the main research subjects during hot rolling under the given rolling regulations of H-beam, the whole process of hot rolling(More)
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