能场辅助拉深成形技术研究进展

Research progress of energy field assisted deep drawing technology

为满足工业发展和环境保护的需要,难变形材料和复杂轻型结构的应用越来越多,对于复杂、薄壁深拉深零件,传统拉深工艺受限于成形极限,通过工艺参数调整和模具结构优化仍难以满足要求。能场辅助拉深通过将力场、温度场、电场、磁场和振动场等物理场引入拉深过程,可以改善坯料与模具的接触条件,改变材料的力学响应行为,从而控制材料合理流动,提升材料的拉深性能,从能场辅助的角度,综述了不同能场辅助拉深成形技术的最新进展,分析了其工艺特点和内在机理,并指出其存在的问题和进一步的研究方向。

In order to meet the needs of industrial development and environmental protection,more and more difficult-to-deform materials and complex lightweight structures are used.For complex and thin-walled deep-drawn parts,the traditional drawing process is limited by the forming limit,and it is still difficult to meet the requirements through process parameter adjustment and die structure optimization.Energy field assisted deep drawing can improve the contact conditions between blank and mould,change the mechanical response behavior of materials,control the reasonable flow of materials,and improve the drawing performance of materials by introducing physical fields such as force field,temperature field,electric field,magnetic field and vibration field into deep drawing process.In recent years,it has gradually become one of the focuses at home and abroad.From the perspective of energy field assistance,it summarized the latest developments of different energy field assisted deep drawing technologies,analyzed its process characteristics and internal mechanism,and pointed out its existing problems and further research directions.