电弧焊接与增材制造热质传递解耦方法研究进展OA

Arc heat sources are extensively employed in welding and additive manufacturing,emerging as an indispensable core energy medium for the joining and forming of metal components.Nevertheless,traditional arc heat sources are plagued by inherent flaws,such as the highly-coupled heat and mass transfer behaviors that are difficult to control independently.This results in a profound coupling between the heat input to the workpiece and the wire deposition rate,posing a significant challenge in simultaneously satisfying the dual demands of high-efficiency deposition and high-quality forming.Consequently,it severely restricts the high-performance manufacturing process of large and complex structural components.Therefore,conducting research on the decoupling of heat and mass transfer in arc heat sources is of immense theoretical value and urgent engineering significance for transcending traditional arc manufacturing technology.This paper presents a systematic review of the research progress in the decoupling technology of heat and mass transfer in arc heat sources,with a particular focus on the state-of-the-art cross-arc configuration.From a physical perspective,this technology achieves orthogonal decoupling of heat input and mass transport through the coordinated arrangement of independent heat sources and independent mass sources.The article offers an in-depth examination of key aspects,including the stability control,droplet transfer behavior,and development challenges of cross-arc heat sources.Its objective is to provide a robust theoretical foundation and feasible technical route support for constructing a new generation of intelligent arc manufacturing systems with independent and controllable heat and mass.