Combined Laser Additive Manufacturing and Subtractive Surface Finishing (CLASS)

激光粉床熔化(PBF)是一种利用计算机辅助三维设计直接制造网络形状和功能产品的新兴制造方法。这些零件是通过连续应用和加固材料层来建造的。为了在制造中得到更广泛的接受，仍然有相当多的硬件相关问题需要解决，包括但不限于：残余应力、表面结构和表面精加工方法，这些问题随着加工速度的加快和应用于更大的零件而加剧。通过数字集成获取过程中数据的能力将进一步验证AM过程在受法规标准控制的部件的生产中的接受性，其中需要过程记录。该项目的目标是生产一个金属AM机器平台，其子系统未来可扩展到米级，能够减少AM构建过程中产生的残余应力，并将在制造零件时对其进行过程中的非接触精加工。多台机器还将通过传感器进行数字连接和监控，以获得对一批全球连接的制造设施的实时洞察。

Laser powder bed fusion (PBF) is an emerging manufacturing approach to produce net shapesand functional products directly from computer aided three dimensional designs. The parts arebuilt by the consecutive application and consolidation of material layers. In order to becomemore widely accepted within manufacturing, there are still considerable hardware associatedissues which need to be resolved including but not restricted to; residual stress, surfacetexture and methodologies for surface finishing, these problems are exacerbated as theprocess gets faster and is applied to larger parts. The ability to capture in -- process data bydigital integration will further validate the acceptance of the AM process in the production ofparts which are controlled by regulatory standards, where process records are required.The aim of this project is to produce a metal AM machine platform, the subsystems of which arescalable in future to meter class, which is capable of reducing the residual stresses developedduring the AM build, and that will perform in process non-contact finishing on parts as they arebuilt. Multiple machines will also be digitally connected and monitored via sensors for real-timeinsights across a cohort of globally connected manufacturing facilities.