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2篇 您的检索式:作者名="Z.L.Chang"
    题名 作者 年代 出处 被引量
1STUDY ON THE FINITE ELEMENT NUMERICAL SIMULATION OF SHEET METAL FORMING显示文摘Based on the Finite Element Theory of Rigid Plastic, relevant problems during plastic simulation on sheet metal forming were technologically studied and simplified; a simplified model of the blank holder during the drawing process was established and the effects of related parameters on the forming processes were also studied. At the same time, a finite-element numerical simulation program SPID was developed. The distribution of strain and relationship of stress-stroke simulated were compared with experimented, the results are well coincided with each other. It is verified that the analytical program is reliable.J.L.Song D.J.Hu Z.L.Chang T.Y.Li Z.B.Jiang 2004Acta Metallurgica Sinica(English Letters)2004,17,3:2
2NUMERICAL SIMULATION STUDY ON DEFORMATION UNIFORMITY OF EQUAL CROSS SECTION LATERAL EXTRUSION显示文摘Equal cross section lateral extrusion (ECSLE) is an effective method realizing pure shear deformation. The influence of friction factor on the deformation uniformity of ECSLE was investigated with rigid plastic finite element method. The result shows that the non-uniform deformation in extrusion is caused mainly by the friction between workpiece and die. The higher the friction factor is, the more uneven plastic deformation resulted in extruded workpiece. The relation curve of deformation uniformity vs. friction factor was drawn based on the analysis result. The curve can be used as a basis of ECSLE process design.Z.L.Chang J.L.Song N.H.Hao 2004Acta Metallurgica Sinica(English Letters)2004,17,1:0
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