增材制造阵风锁支座的装机应用研究

根据3D 打印技术的装机推进要求，在完成材料及工艺的验证后，即开始进行试片级增材制造材料许用值试验以及增材制造零件级试验。增材制造的零件由于其工艺特点，通常X-Y 方向与Z 方向力学性能有差异，与传统金属零件设计时各向同性的特点有差异，因此有必要在接近真实飞行状态下测试其力学性能。以增材制造阵风锁支座为例，计算飞机运营过程中最大载荷状态，选取最典型的载荷方向进行工装试验方案设计；在试验开始前，进行工程计算和软件仿真，预测失效模式和失效载荷。结果表明：软件仿真和工程计算的结果准确有效，增材制造钛合金阵风锁支座的力学性能稳定，能够承受极端工况的考验，满足装机要求。

The research on installation and application of an additive manufacturing gust lock bracket

The installation of 3D printing technology requires that after the completion of the verification of materials and processes, the permissible value test of specimen level additive manufacturing materials and the additive manufacturing part-level test will begin. Due to the process characteristics of additively manufactured parts, there is usually a difference in the mechanical properties of XY direction and Z direction, and there is a difference in the characteristics of the same sex in the design of traditional metal parts, so it is necessary to test its mechanical properties in simulating the real flight state. This paper takes the additive manufacturing gust lock bracket as an example, first calculates the maximum load state in the operation process of the aircraft, selects the most typical load direction for tooling test scheme design, before the test starts, engineering calculation and software simulation are carried out to predict the failure mode and failure load, the test results show that the results of software simulation and engineering calculation are accurate and effective, and the mechanical properties of the additively manufactured titanium alloy gust lock support are stable, can withstand the test of extreme working conditions, and meet the installation requirements.