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Research on the Rolling Pass System of C and F Profiled Steel Bar for Bridge Expansion Joints

Author: WuTao
Tutor: ZhangLianHong
School: Tianjin University
Course: Mechanical Manufacturing and Automation
Keywords: Pass system Numerical Simulation Rolling Profiled steel Instability
CLC: TG332
Type: Master's thesis
Year: 2005
Downloads: 87
Quote: 0
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Abstract


A numerical simulation of the plastic forming process bears enormous economic benefits of research areas . Numerical simulation with finite element technology and the development of computer technology , has gradually become an effective tool for process analysis and design optimization . DEFORM-3D software tools , plastic finite element numerical simulation method of bridge expansion C and F - Shaped steel rolling pass system were studied , the main content is as follows : 1 . Using C bridge expansion F Shaped steel rolling pass system plastic finite element numerical simulation . The results show that the pass both sides of the pressure coefficient is uneven , rolling contact and roll a rolling pass reasonable stability and material distribution and destruction , the \meat \the difficulty lies in the bending angle control pass . Rolling plastic deformation law and its influencing factors were analyzed. The results showed that the important influence of friction on the rolling bites into little effect on the bend-shaping ; the outer ends of the rolls and the size and shape of the contour of the rolling , friction , etc. are unevenly distributed deformation and stress influence the rolling process important factor; increasing the roll diameter , the reduction ratio and the friction factor helps to increase the forward slip ratio ; within a certain range , the forward slip ratio with the rolling finish rolling the reduced thickness and increased ; for rolling flat roll , deformation the area has the wide exhibition area and the extension of district characteristics . Obtained by finite element simulation with actual rolling conditions consistent with the process of rolling torque curve ; through plastic deformation - thermal coupling , the internal temperature of the rolling field . C, F type profiled steel product structure and roll-forming characteristics , comparative analysis , summed up the difficulties of designing and laws of bridge expansion joint with profiled steel product series rolling pass , profiled steel products that bridge expansion the series has a structure similar to the C -shaped profiled steel rolling pass system is the basis for the F, E , or other steel Pass system , study the law of C-shaped steel roll forming bridge expansion with profiled steel series product development is of great significance .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal pressure processing > Rolling > Mill roll pass design
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