惯性摩擦焊接头特性的研究现状

利用飞轮储存的能量来进行零件连接的摩擦焊为惯性摩擦焊(IFW)，IFW中飞轮取代了连续驱动装置，飞轮的使用使得整个过程在操作上更便捷。文中根据已有的研究对IFW接头的特性进行了总结概述，包括接头硬度、抗拉强度、冲击强度等各个方面。重点讨论了焊接过程中接头特性的影响因素，研究了摩擦压力、时间、顶锻压力等因素在接头焊接中所起的作用，对后续的焊接研究提供一定的参考。最后探讨了惯性摩擦焊目前存在的问题，并提出了未来的发展方向及研究重点。

Research of inertial friction welded joint properties

The friction welding using the energy stored in the flywheel to join parts is called inertial friction welding(IFW). In this method the flywheel was replaced by continual driving device, which makes the welding process more convenient to operate. In this paper, based on the former researches, the mechanical properties of IFW joints were summarized which include the micro-hardness, tensile strength, impact strength and some other aspects. The influence factors on joints properties were discussed emphatically. It is researched for the effects of such factors as the friction pressure, friction time, forge pressure and time during the welding which provides references for the later IFW research. Finally, the present existing problems were investigated for this kind of welding. Meanwhile future direction and the key research points were provided.