"Raw" sheet and "machined" sheet

Hello everybody,

Today I went crazy with a problem with how to manage sheet metal items in relation to their trade items. In particular, what I want to achieve is to perform a machining (for example drilling) starting from a raw commercial format , then save the machined part with a different name, but I would also like to keep track of the "raw" article every time I use the "machined" article in an assembly.
Can anyone suggest me any solution?
Thanks in advance

SolidworksModeling And Assemblies