I am experienced in Solidworks, Inventor and Creo.  I have used them design solid bodies, sheet metal parts, and complex organic shapes. 

The example is of a model that I made of a mirror to use as part of a solar concentrator. The main shape is a portion of a hyperbola, a conic section that is not in the standard list of shapes in most CAD programs. On the non mirrored side there are a number of cooling fins.  The fins are denser in the hottest areas and spaced out where it is cooler to save material.  In order to accurately and efficiently generate the hyperbolic shape and the uneven fin spacing I linked this model to an Excel spreadsheet and used the spreadsheet to drive the 3D model.

I also performed thermal finite element analysis (FEA) to determine the best cooling fin spacing to prevent overheating while minimizing material usage.  The image below is an animation of the thermal FEA simulation for a section of a cooling fin. The surface in the lower left is heated while the other surfaces are convection cooled. The independent variable is an energy flux on the lower left corner. The dependent variable is the temperature of the material, which you can see changing over time.