Dissertation > Industrial Technology > Metallurgy and Metal Craft > Metal pressure processing > Forging, forging and blacksmith > Forging process

Frame of Trail Hook Form Technics and Reserch of Experiment

Author LuoZhengZhang
Tutor ZhouJie;ZhengXingDong
School Chongqing University
Course Materials Processing Engineering
Keywords frame of trail hook 3D FEM numerical die forming laws trial procuction
Type Master's thesis
Year 2005
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CAD/CAM is a key technology to realize the automation of product designing and manufacturing. The quality of product can be tangibly improved if the technology is adopted in product designing, engineering analyzing and NC programming in the course of development of product.Frame of trail hook,as the important component that endure load in the trail vehicle.because train need to raise speed and over loading ,parts process change forge from cast .but the parts shapes are complicated and metal flowing in forming process isdifficult ,previously no thorough study has been carried out on this kind of part and the configuration of die used for manufacturing has not been optimazed.A thorough study on the key technical problems of 3D rigid-viscoplastic FEM simulation of frame of trail hook hot forging process has been carried out and a 3D FEM simulation mechanics model corresponding to reality has been proposed .simulation and analysis has been done using DEF0RM3D developed by SFTC Corporation in USA.A series result such as the deformed mesh ,velocity field,equivalent stress field ,equicalent strain field ,material damage and load stroke curve at various deformation degrees have been obtained.Using 45# steel as experiment material ,physical experimentation has been carried out by means of the machine of CQ Heavy duty cast and forging plant.a good agreement of numerical simulation result and physical experimentation results shows that the DEF0RM3D system and its result of the numerical simulation are reliable.

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