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Systems And Methods Of Designing Geometry Of Tool Set In A Numerical Simulation Of Sheet Metal Forming Operations Including Springback Compensation
Systems And Methods Of Designing Geometry Of Tool Set In A Numerical Simulation Of Sheet Metal Forming Operations Including Springback Compensation
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机译:包含回弹补偿的钣金成形操作数值模拟中的工具集几何设计系统和方法
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摘要
Systems and methods of designing geometry of a tool set in a numerical simulation of sheet metal forming operations including springback compensation are disclosed. Computerized die face model representing an initial geometry of a tool set is generated for forming a sheet metal work-piece to a part's desired geometry. Numerically-simulated deep drawing operation, optional trimming operation and a springback effect are conducted to obtained a trial geometry of the part. A deviation between the trial geometry and the desired geometry is obtained. When the deviation is outside of tolerance, computerized die face model is regenerated according to a modified geometry of the tool set that includes an estimated amount of springback compensation derived from the deviation due to springback together with a node adjustment scheme for ensuring model conformity along the boundary line. Final modified geometry of the tool set is iteratively obtained.
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