Equipment and a Technique for Manufacturing Shaped Products from Refractory Metals Using the 3D-Printing Method

摘要

The original equipment has been developed and the feasibility has been shown of manufacturing shaped products from refractory metals by 3D printing using a high-pressure electric arc in a protective gas atmosphere. The proposed technique is performed using layer-by-layer metal deposition using local electric arc skull melting. In experiments aimed at manufacturing molybdenum crucibles, it has been shown that the speed of 3D printing is higher by 2-3 orders of magnitude than the speed of printing by selective laser sintering.