> Are there any 3D printers that integrate a milling machine?
No, and there likely never will be. Why would you wait for hours to then still have to mill down your final product when all the advantages of 3D printing are then lost and all the advantages of milling are lost?
The advantages of 3D printing are that as an additive process it will work in many environments where a subtractive process would not, the advantages of milling are that - as a substractive process - it can make a final result that is substantially stronger than most of the things you could do with a 3D printer and that it most likely is much faster.
Re-working or finishing like that is typically reserved for casting and other cheap mass production processes.
"By combining both, additive manufacturing via powder nozzle and the traditional cutting method in one machine, totally new applications and geometries are possible."
Don't people often just use acetone or another solvent to smooth the surface of chunky prints (outdoors, I hope)? How effective that would be would vary depending on the plastic, but it seems easier than milling (if not especially precise).
Wow... I have never thought of the process in the linguistic terms "additive" and "subtractive". That actually changes the mental model for me. I have always thought, in less abstract terms, about removing shapes (carving out) and optionally sticking external parts (bolting on) to get the desired product. The specific add and subtract "language" presents it in familiar, abstract, and, more importantly, composable model.
No, and there likely never will be. Why would you wait for hours to then still have to mill down your final product when all the advantages of 3D printing are then lost and all the advantages of milling are lost?
The advantages of 3D printing are that as an additive process it will work in many environments where a subtractive process would not, the advantages of milling are that - as a substractive process - it can make a final result that is substantially stronger than most of the things you could do with a 3D printer and that it most likely is much faster.
Re-working or finishing like that is typically reserved for casting and other cheap mass production processes.