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Springback Analysis Based on the Mold Surface Compensation

Author: FuGang
Tutor: RenNaiFei
School: Jiangsu University
Course: Mechanical Manufacturing and Automation
Keywords: dynaform Springback analysis Mold surface compensation Numerical Simulation Auto cover
CLC: TG386
Type: Master's thesis
Year: 2010
Downloads: 152
Quote: 3
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Abstract


According to the statistics , 60% -70% of the parts on the car is produced by the stamping process , automotive stampings forming quality is good or bad , affects not only the vehicle assembly , automotive appearance , but also affect the manufacturing costs of the car as well as a new car type of the development cycle. Wrinkle , rupture , rebound and rigidity less than four major defects in sheet metal forming , which rebound the most difficult to control . Difference because of different materials , different shapes stampings springback law , it is difficult to accurately calculate the springback ; same time, the presence of springback problems will affect the dimensional accuracy and surface quality stampings shape when the rebound over allows tolerance after forming defects , thereby affecting the vehicle assembly . Numerical simulation technology allows accurate calculation of the rebound in the automotive panel stamping it possible . On the basis of theoretical analysis using CAE technology for springback prediction using Dynaform for the the bending springback simulation analysis of the U-shaped pieces , effectively predict springback presented which uses finite element simulation technology , and then based on the springback results the design of the mold surface springback compensation . Applying this method can shorten the cycle of the tryout control the rebound in the automotive panel die design drawing , the guiding mold optimization design to shorten mold manufacturing cycle has a value of industrial applications . Discussed on the basis of analysis of the springback compensation automotive Wai pull the extension of the mold design .

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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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