Manufacturers like Ford Motor Co., Airbus, Boeing, GE Aviation continue to be high-volume buyers of metalcastings – but each one (and many others like them) has confirmed their own activity in additive manufacturing (or 3D printing.) The 3D-printed parts are not replacing castings — not yet in any case — but OEMs’ rate of progress in developing, implementing, and commercializing these in-house design and manufacturing efforts cannot be overlooked.