Need Help - Simulation: stamping with different thickness on same part?

[acube]

Hi,

I have a 0.6mm thick metal part using phosphor bronze material. Half of the part's thickness will be reduced to 0.35mm (by stamping process).

- Anyone can teach me how to perform simulation on the 0.35mm area? (Note: thickness is reduced by stamping process from 0.6mm to 0.35mm).

Thank you and will really appreciate your help!