High Precision Droplet-Based Solid Freeform Fabrication: A Novel Manufacturing Technique

Orme 9622400作为一种新兴技术，快速成型技术正在彻底改变工业的各个领域，为设计和制造上级质量的产品创造了巨大的机会，缩短了交货期，降低了成本。 该研究项目研究了一种新的功能金属部件的固体自由成形制造（SFF）方法，该方法依赖于将熔融状态的金属沉积到基底上，该基底的运动由CAD信息的直接耦合引导。 这种基于液滴的SFF需要的加工步骤比传统的制造技术（如铸造）和其他SFF技术（如选择性激光烧结（SLS）和3D打印）都要少。 该研究项目将重点关注成功开发新型快速成型技术所需的科学问题。 所提出的技术可以每秒产生10，000至40，000个液滴（对于25至100微米的孔直径和5 m/s的流速度），这些液滴被注入受控环境室中，并被沉积到温度受控的基底上，在那里它们撞击并快速固化。 本研究计画在理论与实验之间取得平衡，将为快速成型产业提供有价值的发现。

Orme 9622400 As an emerging technology, rapid prototyping is revolutionizing every sector of industry, creating great opportunities to design and manufacture products of superior quality with shorter lead-time and low costs. The research project investigates a new method of solid freeform fabrication (SFF) of functional metallic components which relies on the deposition of metal in the molten state onto a substrate whose motion is guided with the direct coupling from CAD information. This droplet-based SFF requires less machining steps than both conventional manufacturing techniques such as casting and other SFF technologies such as Selective Laser Sintering (SLS) and 3D printing. The research project will focus on scientific issues necessary for the successful development of a novel rapid prototyping technique. The proposed technique can generate 10,000 to 40,000 droplets/second (for orifice diameters from 25 to 100 micron and a stream speed of 5 m/s) are injected into a controlled environment chamber and are deposed onto a temperature controlled substrate where they impinge and rapidly solidify. The research project has a balance between theory and experiment, and will provide valuable findings for the rapid prototyping industry.