say you FDM printed something on your 3D printer in, say, regular old PLA at 200deg C

and say you also had an aluminum mold of the same model

could you put that print in that mold and heat the mold to the edge of its glass point and blow compressed air through to iron all the outer surfaces to the contour of the mold, like blow molding but way slower and at lower temp with all the wrong materials?