Processing Beta Titanium Alloys in Powder-Based Additive Manufacturing

先进金属系统CDT项目增材制造（AM）是一种新型的近净形制造技术，用于通过部分或完全熔化来固结粉末层或线或带来生产固体部件。待沉积的材料通过由电子束（e-beam）、激光或等离子体或焊接电弧提供的聚焦热源熔化。每一层都是来自最终3D CAD组件模型的2D部分，即，部件的3D几何形状是通过局部熔化逐层构建2D轮廓的堆叠而形成的。围绕增材制造技术的大部分炒作都是围绕先进的设计进行的;然而，存在一个重要的价值主张，即以只能使用先进的微观结构控制机制的方式制造材料。增材制造提供了一种独特的微结构控制方式，具有高度的设计自由度。为了在设计中使用这一点，需要更好地了解制造过程中工艺参数对微观结构的影响。该项目将使用实验和建模技术来了解和优化β钛合金制造零件的工艺参数的影响。

Advanced Metallic Systems CDT ProjectAdditive Manufacturing (AM) is a novel near-net-shape fabrication technique used to produce solid components by consolidating layers of powder, or wires or ribbons, by partial or full melting. The materials to be deposited are melted by a focussed heat source, provided by an electron beam (e-beam), laser, or plasma or welding arc. Each layer is a 2D section from a final 3D CAD component model i.e., the 3D geometry of a component is formed by building-up a stack of 2-D profiles, layer-by-layer, by local melting.Much of the hype surrounding additive manufacturing technologies has been made around advanced designs; however, a significant value proposition exists to manufacture materials in ways which are only able to be exploited using advanced microstructure control mechanisms. Additive manufacturing offers a unique way of microstructure control with a high degree of design freedom. In order to use this in design, a better understanding of process parameters influence on the microstructure during build is required. This project will use experimental and modelling techniques to understand and optimise the effects of processing parameters of parts manufactured from beta titanium alloys.