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为确保40 t·m液气锤的打击性能能够满足航空领域高温钛合金零件的锻打工艺,提高设备的控制精度,深入研究了液气锤打击过程的动力学特性。分别建立液气锤打击过程在未发生塑性变形阶段和塑性变形阶段的拉格朗日动力学模型,利用数值计算模拟,深入分析施加打击参量(打击气压和液压系统压力)时液气锤相互作用的锤头与锤体的动态特性,研究液气锤打击过程的运动规律,总结系统的基础数据与理论以达到精确控制的目的。经现场试验研究表明,控制系统可以满足40t·m液气锤精确打击工艺的要求。
In order to ensure that the striking performance of the 40 t · m hydraulic hammer can meet the forging process of the high temperature titanium alloy parts in the aviation field and improve the control accuracy of the equipment, the dynamic characteristics of the hammer hammering process are studied in depth. The Lagrange dynamic model of the hammering process in the stage of plastic deformation and the stage of plastic deformation are established respectively. By using numerical simulation, the interaction between the hammer and liquid hammer in the application of the blow parameters (blow pressure and hydraulic system pressure) The dynamic characteristics of the hammerhead and the hammer to study the movement rule of the hammer, and to summarize the basic data and theory of the system in order to achieve the purpose of precise control. The field test shows that the control system can meet the requirement of 40t · m liquid hammer precision strike technology.