3D打印行业研究：重视 DED技术在商业航天成长潜力

Investment Rating - The report suggests a positive outlook for the commercial aerospace 3D printing sector, particularly for companies actively engaging in the Directed Energy Deposition (DED) technology route [6]. Core Insights - DED is one of the mainstream technologies for metal 3D printing, characterized by its ability to melt materials using focused thermal energy and deposit them layer by layer [2][13]. - International companies like Optomec and Insstek have pioneered the commercialization of DED technology, while domestic firms are catching up with significant advancements in various applications [3][48]. - DED technology offers unique advantages in commercial aerospace applications, such as no size limitations, multi-material composite printing capabilities, and the ability to repair and remanufacture components [4][61]. Summary by Sections What is DED? - DED is categorized as one of the main technology routes for metal 3D printing, alongside Powder Bed Fusion (PBF) [13][14]. - The DED process involves using a focused laser beam to melt materials, allowing for the creation of near-net-shape components [17][19]. International and Domestic Developments - Companies like Optomec and Insstek have successfully commercialized DED technology, with applications in industrial fields such as aerospace [3][42]. - Domestic companies, including Zhongke Yucheng and Jiuyujianmu, are making significant strides in DED technology, particularly in aerospace and automotive sectors [48][55]. Potential of DED in Commercial Aerospace - DED technology is viewed as having a unique technological advantage in the commercial aerospace sector, particularly for certain components that require complex geometries and multi-material structures [4][61]. - The technology allows for significant reductions in production time and costs, as demonstrated by NASA's advancements in DED applications [5][76]. Investment Recommendations - The report recommends focusing on domestic companies that are actively developing DED technology, as the commercial aerospace industry is expected to experience rapid growth and increased adoption of 3D printing technologies [6][95].