surFACe emItting Laser array for addITive mAnufacTuring Of theRmoplastics (FACILITATOR)

用于热塑性塑料增材制造的表面发射激光阵列（FACILITATOR）

• 批准号: 97661
• 金额: $ 37.67万
• 依托单位: VECTOR PHOTONICS LIMITED
• 依托单位国家: 英国
• 项目类别: Study
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=97661
• 关键词: surFACe; emItting; Laser; array; addITive

Additive manufacturing (AM) is an enabling technology and is the future of manufacturing in a digital, local, low turnaround time, personalised world.This new field has the potential to revolutionise many aspects of human life. The materials which can be manufactured using this process can significantly reduce waste during the manufacturing process, as well as reduce the weight of parts shipped (reducing carbon emission for key sectors such as aerospace). These systems can also produce bespoke parts for medical applications, giving improved quality of life.Direct digital manufacturing, as part of industry 4.0, will become a future norm, providing custom parts in a timely manner with reduced environmental impact.Selective laser sintering (SLS), is a leading AM process. Current SLM systems repeatedly deposit a layer of material powder on a bed, then a high-power laser is scanned over the surface, melting only areas which require material deposition on the layer below, akin to writing with a pen. This is repeated layer by layer, building a complete 3D structure. The SLM systems are expensive, and \>60% of the cost of the parts manufactured in this way are time dependant, holding back the deployment of these systems. We have developed a method to massively increase the write speed of these systems (increasing the speed by 10x), which reduces the cost of parts manufactured by 4x.We propose the development of a rapid 3D printing technology based on semiconductor laser technology. The novelty in this work is the development of new laser systems which will allow an entire layer to be written in with a speed increase of 10x, which equates to a reduction in cost of part production of 4x.This will do for additive manufacturing what the printing press did for publishing.

增材制造 (AM) 是一项使能技术，是数字化、本地化、低周转时间、个性化世界中制造的未来。这个新领域有可能彻底改变人类生活的许多方面。使用此工艺制造的材料可以显着减少制造过程中的浪费，并减轻运输零件的重量（减少航空航天等关键行业的碳排放）。这些系统还可以生产用于医疗应用的定制零件，从而提高生活质量。作为工业 4.0 的一部分，直接数字制造将成为未来的常态，及时提供定制零件，同时减少对环境的影响。选择性激光烧结 (SLS) ），是一种领先的增材制造工艺。当前的SLM系统会在床上重复沉积一层材料粉末，然后用高功率激光扫描表面，仅熔化需要在下面的层上沉积材料的区域，类似于用笔书写。如此逐层重复，构建出完整的 3D 结构。 SLM 系统价格昂贵，并且以这种方式制造的零件成本的 60% 以上与时间相关，从而阻碍了这些系统的部署。我们开发了一种方法可以大幅提高这些系统的写入速度（速度提高10倍），从而将零件制造成本降低4倍。我们建议开发基于半导体激光技术的快速3D打印技术。这项工作的新颖之处在于开发了新的激光系统，该系统将使整个层的写入速度提高 10 倍，这相当于零件生产成本降低 4 倍。这对于增材制造来说将起到什么作用？印刷机为出版服务。