The Wire arc additive manufacturing (WAAM) process uses a metal plate as a substrate for part deposition. The presented work uses small pillars of cuboidal shapes arranged together to form the required deposition surface instead of a single large substrate. The post-processing of WAAM is arduous due to the need for the part removal from the substrate. The pillar-based substrate made this part removal process simpler and reduced the machining requirement. A WAAM setup was designed and developed in-house by integrating the gas metal arc welding (GMAW) with a three-dimensional gantry. The setup was utilised to deposit thin-walled metal parts over the pillar-based substrate. The online recorded temperature at the base using thermocouples confirmed adequate cooling between subsequent layers. The temperature of the pillar-based substrate was compared with the conventional substrate, which ensured proper heat dissipation. The microstructural study and hardness measurement of the deposited parts also confirmed that the pillar-based substrate has little effect on the part quality. The applications of the pillar-based substrate were further extended to demonstrate the deposition of multiple parts on a single substrate and part containing non-planar layers (overhanging features).

电弧增材制造（WAAM）工艺使用金属板作为零件沉积的基材。提出的工作使用排列在一起的长方体形状的小柱子形成所需的沉积表面，而不是单个大基材。由于需要从基板上去除零件，因此WAAM的后处理工作艰巨。基于支柱的基板使该零件的去除过程更加简单，并降低了加工要求。通过将气体保护金属电弧焊（GMAW）与三维龙门架集成在一起，在内部设计和开发了WAAM装置。该装置用于在基于柱的基板上沉积薄壁金属零件。使用热电偶在线记录的底座温度证实了后续各层之间的充分冷却。将立柱式基板的温度与常规基板进行了比较，从而确保了适当的散热。沉积零件的微观结构研究和硬度测量也证实，基于柱的基底对零件质量影响很小。进一步扩展了基于柱的基底的应用，以展示多个零件在单个基底上的沉积以及包含非平面层的零件（悬垂特征）的沉积。