High-strength aluminum alloy suitable for 3D printing

• Main Authors: GE JIQIANG, SHEN XIANFENG, WANG GUOWEI, WANG LILI, CHEN JINMING, HUANG SHUKE, LI XIAOYUAN
• Format: Patent
• Language: Chinese; English
• Published: 05.11.2019
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PERFORMING OPERATIONS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses high-strength aluminum alloy suitable for 3D printing. The high-strength aluminum alloy is prepared from the following components in percentage by weight: 10-12 percent of Si,0.45-0.7 percent of Cu, 0.3-0.55 percent of Mg and the balance of Al, other elements and non-removal impurities. Compared with existing aluminum alloy for 3D printing, the aluminum alloy has the advantages that the tensile strength and the yield strength of the aluminum alloy in a shaped state are obviously improved on the premise of equivalent elongation rate, and the cost is low. 本发明公开了一种适用于3D打印的高强铝合金，包括以下重量百分比组分：Si：10％～12％，Cu：0.45％～0.7％，Mg：0.3％～0.55％，余量为Al、其它元素和不可除杂质。该铝合金与现有用于3D打印的铝合金相比，在延伸率相当的前提下，成形态的抗拉强度、屈服强度都明显提高，且具有价格低的优势。