I-Corps: Additive manufacturing of nickel titanium aerospace actuators

I-Corps：镍钛航空航天执行器的增材制造

• 批准号: 2109572
• 负责人: Mohammad Elahinia
• 金额: $ 5万
• 依托单位: University of Toledo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-02-15 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2109572&HistoricalAwards=false
• 关键词: Corps; Additive; manufacturing; nickel; titanium

The broader impact/commercial potential of this I-Corps project is the development of shape memory alloy actuators through 3D printing that may compete with the force capabilities of traditional hydraulic actuators. An actuator is a component of a machine that is responsible for controlling a system. A typical commercial aircraft has several independent hydraulic systems and one or two pumps to pressurize the systems. These systems are used to control the flight surfaces that control the movement of the aircraft in the air. These systems add a great deal of weight to the aircraft. In the development of vehicles for the aerospace industry, space and weight are always of great concern. This technology has the potential to reduce the weight and footprint of actuators used in aircraft by eliminating the need for hydraulic systems. This project has a potential added benefit of also reducing the fire risk for aircraft experiencing an emergency in the air or during landing. Finally, this technology has the potential to aid satellite and rocket manufacturing industries with similar motivations for adoption.This I-Corps project is based on the development of additive manufacturing strategies for shape memory alloys. Shape memory alloys are a class of materials that allow the materials to be formed into a desired shape, which is called the parent shape. This parent shape can then be deformed and upon the application of heat above a certain threshold, the material will revert to its parent shape exhibiting a “shape memory.” Nickle and titanium are readily alloyed to produce shape memory alloy actuators. However, traditional machining of nickel titanium alloys are challenging due to their high hardness and the fact that the heat generated during machining has the potential to change the properties of the material. The use of additive manufacturing using a high-powered laser to melt powdered metals is used to address the difficulties associated with traditional machining. The use of specific printing strategies has been developed to modify the threshold temperature of the actuator during printing and thus, enable the material properties to be tailored. This tailoring allows the development of actuators customized to the customers’ specific needa.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

I-Corps的更广泛的影响/商业化是通过3D打印的形状合金执行器的开发，该打印可能具有传统的液压执行器的力量类型系统。在飞机中消除了对水力系统的需求，该项目可能会增加飞机在空中或着陆期间的火灾风险。 I-Corps项目是基于形状的增材制造的开发。材料的材料表现出“形状的记忆”，但是，由于其高硬度的高度，镍钛合金的传统手机是具有挑战性的材料融化的金属是添加的，以添加到传统的手工艺品上的添加。 “ Sf'sf'sfly的使命，并通过基金会的智力优点和更广泛的影响审查标准获得了值得支持的评估。