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The Applicaiton of Springback Simulation on the Manufacture of Automobile Panel

Author: CuiKeQin
Tutor: ZhangYouKun; LiuRenYu
School: Jilin University
Course: Vehicle Engineering
Keywords: sheet metal forming springback finite element simulation
CLC: TG386
Type: Master's thesis
Year: 2012
Downloads: 67
Quote: 0
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Abstract


The springback phenomenon is stamping parts forming process is one of themost common problems. In order to improve the parts product quality, shorten thedevelopment cycle, we must be to springback prediction precision of the phenomenonand effective control. The springback phenomenon is stamping parts forming processis unable to overcome one defect, influence the accuracy of the parts, the traditionalsolution is to try to determine the mode of forming scheme and optimization of theshape of the mould, it has a waste of time, expensive shortcomings, plate moldingnumerical simulation technology and development to solve the emergence ofspringback problem to provide the basis. From the80s, the finite element simulationtechnology has been used in a lot of the numerical simulation of sheet metal forming,but of the general finite element simulation algorithm based on the incrementalprinciple because of the theoretical reason, want to accurately calculate the stress statevon berg systeme still, there are some difficulties, so precise rebound simulation isstill a difficult problem, the current experimental study is to solve the problem willrebound still indispensable approaches.this paper emphatically hafei car SaiBao developed in the electric vehicle, theside in strengthen pieces around the board of the parts in the process of formingrebound. First of all by finite element numerical simulation technology of relatedbasic theory are studied, and based on this, expounds the springback principle ofstamping produced, Analyzes the main factors of influence rebound value. Then in theparts of the resilience of the forming process simulation, through the analysis to thesimulation result, and take the corresponding improvement and resumed after thecorrection method is analyzed, and the effect is achieved good process model. hroughthis process model of mould processing production stamping parts after themeasurement, and the measurement data from the simulation results and simulationwere compared and got some of a rebound in the main influence factors and laws forreasonable compensation rebound provides better method, and to overcome in theprocess of the development of the mould to rebound problem has provided thefavorable basis. This paper achievements of development of new models for future ofpressing problems to overcome the springback improve quality of parts haveimportant value.

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal pressure processing > Cold stamping ( sheet metal processing) > Cold stamping process
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