锻压技术

40 t·m液气锤锻打过程动力学特性研究

英文标题：Research on dynamic characteristics of forging process for liquid-airhammer 40 t·m

作者：谢苗贾灿毛君

单位：辽宁工程技术大学

分类号：TG315

出版年,卷(期):页码：2016,41(3):63-67

摘要：

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40 t·m液气锤精确打击工艺的要求。

In order to ensure the hammering performance of liquid-air hammer 40 t·m to meet high temperature forging technology of titanium alloy parts in the field of aviation and improve control accuracy of the forging equipment, the dynamic characteristics of liquid-air hammer in the hammering process was studied, and Lagrange dynamics model was established in the stages of non-plastic deformation and plastic deformation. Furthermore, when the different hammering parameters (hammering air pressure and hydraulic system pressure) were analyzed, the dynamic characteristics of the interaction of hammer head and hammer body were numerically simulated. Finally, the movement regularity of liquid-air hammer in the hammering process was revealed, and the basic data and theory of control accuracy system were summarized. The experimental results show that the control system can meet the requirements of liquid-air hammer 40 t·m in the precision hammering process.

基金项目：

辽宁省教育厅创新团队资助项目(LT2013009)

谢苗(1980-)，女，博士，副教授通讯作者：贾灿(1990-)，男，硕士研究生

参考文献：

［1］谢苗,毛君,梁晗,等. 液气锤有效打击时间与控制方法研究[J]. 机械科学与技术,2012,31(12):2034-2038.Xie M, Mao J, Liang H,et al. Research about the effective forging time of fluid-air hammer and control method[J].Mechanical Scienceand Technology,2012,31(12):2034-2038.
［2］李永堂,宋建丽,刘建生. 对击式液压锤运动部分动力学分析[J].太原重型机械学院学报,1994,(12):309-314.Li Y T, Song J L, Liu J S. Dynamic analysis on the movement of hammer type hydraulic hammer[J].Journal of Taiyuan Heavy Machinery Institute,1994,(12):309-314.
［3］杨可以,李付国,李云瑞. 模锻锤整体刚度细数及打击力计算[J].锻压技术,1995,20(4):42-45.Yang K Y, Li F G, Li Y R. Caculation of rigidity coefficient and blow force of stamping hammer[J].Forging & Stamping Technology,1995,20(4):42-45.
［4］黎俊初. 锻锤基础双自由度有阻尼振动力学模型的计算机分析[J].应用能源技术,1996,(9):34-36.Li J C. Hammer foundation with two degree of freedom analysis of damping vibration mechanical model ofcomputer[J]. Applied Energy Technology,1996,(9):34-36.
［5］李云瑞,李毓镔. 锤砧座振动模式及其振幅[J].重型机械,1997,(1):43-47.Li Y R， Li Y B. Vibration mode and amplitude of hammer anvil [J]. Heavy Machinery,1997,(1):43-47.
［6］高乃光,陈维民,黎俊初. 锻锤工作过程中砧座及基础的振动分析[J]. 重型机械,1997,(3):36-41.Gao N G, Chen W M, Li J C. The vibration analysis of the anvil and hammer foundation in the process of work [J].Heavy Machinery, 1997,(3):36-41.
［7］张弛,徐佩娟,何东野. 基于锻件为弹粘塑体的液压模锻锤动态研究[J]. 吉林大学学报,2009,39(5):1172-1176.Zhang C, Xu P J, He D Y. Dynamic study of hydraulic forging hammer forging based on elasto-viscoplastic body[J]. Journal of Jilin University,2009,39(5):1172-1176.
［8］张弛,徐佩娟,陈华. 基于锻件为弹粘塑体的液压模锻锤打击力的研究[J].塑性工程学报,2009,16(4):91-94.Zhang C, Xu P J, Chen H. Hitting power study of hydraulic forging hammer based on elastic-viscoplastic body forging[J]. Journal of Plasticity Engineering,2009,16(4):91-94.
［9］金文明,马文元,杨慎华. 50 kJ液压模锻锤打击能量仿真研究[J].锻压装备与制造技术,2008,43(5):90-92.Jin W M, Ma W Y, Yang S H. The simulation research on blowing energy of 50 kJ hydraulic die forging hammer[J].China Metal Forming Equipment and Manufacturing Technology,2008,43(5):90-92.
［10］金文明,杨慎华,徐迪. CJ83-50 kJ液压模锻锤基础振动仿真分析[J].锻压装备与制造技术,2009,44(4):42-46.Jin W M, Yang S H, Xu D. Vibration simulation analysis on CJ83-50 kJ Hydro-pneumatic forging hammer[J]. China Metal Forming Equipmentand Manufacturing Technology,2009,44(4):42-46.
［11］韩玉坤,张运真,王立新. 20 MN快锻液压机打击碰撞动态特性研究[J].锻压技术,2010,35(4):95-99.Han Y K, Zhang Y Z, Wang L X. Dynamic characteristics research on impact forging of 20 MN quick forging hydraulic press[J]. Forging & Stamping Technology，2010，35(4):95-99.
［12］谢苗. 大型液气锤动力学特性与控制策略研究[D].阜新:辽宁工程技术大学,2012.Xie M. Research on Dynamic Characteristics and Control Strategy of Large-scale Liquid-air Hammer[D].Fuxin:Liaoning Technical University,2012.

服务与反馈：

【文章下载】【加入收藏】