Arcam AB in Sweden recently patented an electron-beam melting (EBM) technique that additively builds complex parts out of titanium. The process economically builds parts at relatively low volumes. EBM is thus suitable for the orthopedics and aerospace and defense industries. Similar to other additive techniques, a “sliced” CAD model of the component is transferred to the working memory of the machine. The production chamber is loaded with metal powder and a high vacuum is drawn. A high-power (3.4-kW), computer-controlled electron beam melts thin layers of the metal powder, based on each CAD layer, gradually building up the part.
Детали практически любой конфигурации "выплавляются" электронным пучком в камере, размером до 12х12х10 дюймов. Это дорого - но полностью автоматизировано, достаточно загрузить 3Д модель.
Про компактные станки-автоматы для нарезки стволов я умолчу - давно есть.
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