电弧增材制造轨迹及工艺规划研究进展

Research Progress of Trajectory and Process Planning in Wire Arc Additive Manufacturing

电弧熔丝增材制造是一种高效快速近净成形制造技术,凭借其低成本、高柔性的显著优势成为中/大型金属零件制造的热点研究方向及首选方案。概述了近年来电弧熔丝增材制造技术在成形轨迹及工艺规划方面的研究进展,总结了三维模型切片方法、具有不同几何特征的二轮轮廓路径规划方法、典型结构的特殊路径规划策略及成形工艺参数优化与控制策略,介绍了多方面提高表面质量与成形精度的工艺方法及悬垂结构、倾斜结构的无支撑打印策略,最后总结了电弧熔丝增材制造技术当前研究进展,指出了未来提升电弧增材制造装备及工艺控制的智能化水平的研究方向。

Wire arc additive manufacturing is a highly efficient and rapid near-net forming technology.Due to its significant advantages of low cost and high flexibility,it has become a hot research topic and the preferred choice for the manufacturing of medium/large parts.It is widely used in core equipment manufacturing fields such as aerospace,weapons and so on.In this paper,the recent research of wire arc additive manufacturing in forming trajectory and process planning is reviewed.The three-dimensional model slicing method,the two-dimensional contour path planning method with different geometric characteristics,the special path planning strategy of typical structure and the optimization and control strategy of forming process parameters are summarized.The technological methods to improve the surface quality and forming accuracy in various aspects,the non-support printing strategy of overhang and inclined structure are introduced.Finally,the current research progress of wire arc additive manufacturing is summarized,and the resreach direction of improving the intelligent of arc welding additive manufactuing equipment and process control in the future is pointed out.