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Numerical Simulation and Technological Parameters Optimization on Forming Process of the Inner Panel of Automotive Suspension

Author: ZouWenChao
Tutor: ChenWenLin
School: Hefei University of Technology
Course: Materials Processing Engineering
Keywords: Numerical Simulation Multi - step forming Die face design Optimization of process parameters
CLC: TG386.1
Type: Master's thesis
Year: 2009
Downloads: 84
Quote: 2
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Abstract


Car rear axle suspension within the board is a car cover , the large size of the structure , the complexity of the shape of the space , not forming a body shape . For not forming a part , the geometric parameters of the molding surface of the drawing die is difficult to determine , the drawing process will not only fail to forming defects , but also consider the impact on the subsequent forming . According to the parts forming characteristics , the development of the the reasonable forming process . Determine stamping direction in the drawing process , draw bead set , trim line calculation in the process of trimming , shaping process repair the positioning of the side member , binder selection forming process are described . By numerical simulation of parts forming process , you can save the cost and time of the tryout cost more after the parameter optimization of the conditions . The traditional die face design to rely more on experience , without regard to the design parameters and function mapping relation of the finite element simulation results , parameter optimization design is very difficult . The article explains the basic principles of response surface methodology to establish the parameters and finite element simulation of sheet metal forming agent model ; sheet forming design variables , objective function , constraints , multi-objective optimization approach ; based on response surface approximate model to the maximum forming margin optimization objectives , minimum and maximum after forming the sheet thickness constraints , the establishment of the geometric parameters of the molding surface approximate optimization model ; the work mold surface geometry parameters optimized to obtain the optimal parameter combination . The final optimal combination of geometric parameters of the actual stamping tests to verify the results of the optimization , the ideal product .

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