Wire Arc Additive Manufacturing (WAAM) is a layer-by-layer production concept that is proposed as a promising alternative to traditional subtractive techniques due to its potential to manufacture large metallic components of medium geometrical complexity. In recent years, this technology has created interest due to the advantages it proposes, such as a low cost and high deposition rates in comparison with other Additive Manufacturing (AM) techniques. In this study, the Gas Metal Arc Welding (GMAW)-based WAAM system was developed to deposit mild steel material. To that end, a comprehensive methodology to understand the main process variables and their influence in the final component properties is shown. The aim of the present study was to compare the influence of oscillatory and overlapping deposition strategies in terms of productivity, growth per layer, obtained microstructure and mechanical properties using the control volume concept to compare volume-dependent parameters. Although some characteristics of these strategies have been documented in literature, the heat input influence has not yet been comprehensively demonstrated and understood. For example, heat input, analyzed deeply in the present study, is a critical factor for the stability of the WAAM process, influencing the mechanical properties and microstructural evolution of as-fabricated parts. The results indicate that the oscillated strategy increases productivity.

钢丝电弧增材制造（WAAM）是一种逐层生产的概念，由于它具有制造中等几何复杂度的大型金属部件的潜力，因此被提议作为传统减法技术的有希望的替代方法。近年来，由于其提出的优点（例如与其他增材制造（AM）技术相比，低成本和高沉积速率），该技术引起了人们的兴趣。在这项研究中，开发了基于气体金属电弧焊（GMAW）的WAAM系统来沉积低碳钢材料。为此，显示了一种全面的方法，可以理解主要过程变量及其对最终组件属性的影响。本研究的目的是比较振荡和重叠沉积策略对生产率的影响，通过控制体积的概念比较体积相关的参数，获得每层的生长，获得的微结构和机械性能。尽管这些策略的某些特征已在文献中进行了记录，但热量输入的影响尚未得到全面证明和理解。例如，在本研究中进行深入分析的热量输入是WAAM工艺稳定性的关键因素，它会影响所制造零件的机械性能和微观结构演变。结果表明，振荡策略可以提高生产率。热输入的影响尚未得到充分证明和理解。例如，在本研究中进行深入分析的热量输入是WAAM工艺稳定性的关键因素，它会影响所制造零件的机械性能和微观结构演变。结果表明，振荡策略可提高生产率。热输入的影响尚未得到充分证明和理解。例如，在本研究中进行深入分析的热量输入是WAAM工艺稳定性的关键因素，它会影响所制造零件的机械性能和微观结构演变。结果表明，振荡策略可提高生产率。