Metal Forming

LS-DYNA has been used for sheet metal stamping simulation since the late 1980s and can be used to assess a proposed forming process and tool design.

The panel on the left was produced from tools designed by simulation; that on the right by traditional methods.

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The picture below shows thickness distribution from LS-DYNA, with prediction compared against measurement

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Simulation was initially used to 'trouble shoot' a production problem but is now being used to design and try out the tools before any metal is cast.  Forming processes within the scope of LS-DYNA simulation include rigid tool stretch and draw forming (with multiple tool action), sheet and tube hydroforming (including bending operations), flex forming, roll forming and superplastic forming. LS-DYNA simulation can equally be applied to bulk forming problems such as rolling, forging and casting. Forming results can be coupled with structural analysis to see the true response of the component, accounting for thickness, stress and strain variations from forming

Special thanks to Ove Arup for technical writing

 visit the web site Metal Forming Simulation
Directed by Xinhai Zhu of LSTC