Recently, the HN Aerospace New Materials released information that the institute has successfully developed a 3D printed high-strength aluminum alloy powder material and applied for several related patents. According to inspections by authoritative organizations at home and abroad, this 3D high-strength aluminum alloy powder material has reached the international advanced level and has been popularized and applied in aviation, aerospace and other fields.
Additive manufacturing technology has become one of the important means for accelerating the transformation and upgrading of China's manufacturing industry, but most of the powder materials for additive manufacturing rely on imports, with limited types, and many foreign high-performance powders are banned from sale in China. With the increasing demand for weight reduction of defense weapons and equipment, the demand for additive manufacturing of aluminum alloy parts has become more urgent. At present, the commonly used additive manufacturing aluminum alloy powder material is only AlSi10Mg, which has a room temperature tensile strength of less than 400 MPa, which cannot meet the needs of the aviation and aerospace fields. In response to the demand for additive manufacturing of aluminum alloy parts for aviation, foreign Airbus companies have developed the world's first high-strength aluminum alloy powder material for additive manufacturing, which has a room temperature tensile strength of 520 MPa or higher, which is an internationally advanced level and has been applied to A320 aircraft Additive manufacturing of cabin structural parts.
The room-temperature tensile strength of the alloy powder material molded parts developed by Hunan Aerospace Changsha New Material Industry Research Institute is above 535MPa, the yield strength is above 510MPa, and the elongation is above 12%. It has the same performance as the high-strength aluminum alloy powder products developed by foreign Airbus companies, and has been widely used in aviation and aerospace fields.