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首页> 外文期刊>Applied Sciences >An Overview of Additive Manufacturing of Titanium Components by Directed Energy Deposition: Microstructure and Mechanical Properties
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An Overview of Additive Manufacturing of Titanium Components by Directed Energy Deposition: Microstructure and Mechanical Properties

机译：通过定向能量沉积法增材制造钛部件的概述：组织和力学性能

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The directed energy deposition (DED) process can be employed to build net shape components or prototypes starting from powder or wires, through a layer-by-layer process. This process provides an opportunity to fabricate complex shaped and functionally graded parts that can be utilized in different engineering applications. DED uses a laser as a focused heat source to melt the in-situ delivered powder or wire-shaped raw materials. In the past years extensive studies on DED have shown that this process has great potential in order to be used for (i) rapid prototyping of metallic parts, (ii) fabrication of complex and customized parts, (iii) repairing/cladding valuable components which cannot be repaired by other traditional techniques. However, the industrial adoption of this process is still challenging owing to the lack of knowledge on the mechanical performances of the constructed components and also on the trustworthiness/durability of engineering parts produced by DED. This manuscript provides an overview of the additive manufacturing (AM) of titanium alloys and focuses in particular on the mechanical properties and microstructure of components fabricated by DED.
机译：定向能量沉积（DED）工艺可用于通过逐层工艺从粉末或金属丝开始构建网状组件或原型。此过程提供了制造可在不同工程应用中使用的复杂形状和功能渐变零件的机会。 DED使用激光作为聚焦热源来熔化就地输送的粉末或金属丝状原材料。在过去的几年中，对DED的大量研究表明，该方法具有很大的潜力，可用于（i）金属零件的快速原型制作，（ii）复杂和定制零件的制造，（iii）修复/覆盖有价值的零件。无法通过其他传统技术修复。但是，由于缺乏对所构造部件的机械性能以及对DED生产的工程零件的可信赖性/耐用性的了解，因此该工艺的工业采用仍面临挑战。该手稿概述了钛合金的增材制造（AM），尤其着重于DED制造的部件的机械性能和微观结构。

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