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

奥美9622400作为一项新兴技术，快速成型正在给工业的各个领域带来革命性的变化，为以更短的交货期和更低的成本设计和制造高质量的产品创造了巨大的机会。该研究项目研究了一种新的功能金属部件的固体自由形状制造(SFF)方法，该方法依赖于熔融状态的金属沉积在衬底上，衬底的运动由来自CAD信息的直接耦合来引导。这种基于液滴的SFF比传统制造技术(如铸造)和其他SFF技术(如选择性激光烧结(SLS)和3D打印)需要的加工步骤更少。该研究项目将集中于成功开发一种新的快速原型技术所必需的科学问题。该技术可以产生10,000到40,000个/秒的液滴(孔口直径从25到100微米，流速为5m/S)被注入受控环境室内，并沉积在受控温度的衬底上，在那里它们撞击并快速凝固。该研究项目在理论和实验之间取得了平衡，将为快速成型行业提供有价值的研究成果。

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.