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- variable blank holder force(VBHF) 变压边力
- variable blank holder force (VBHF) 变压边力
- System of Variable Blank Holder Force in Deep Drawing 板料拉深变压边力系统
- Reconstructing the Hydraulic Pressure Machine into Real-time Controlling Variable Blank Holder Force System 实时控制变压边力液压系统的改造
- A Model of Variable Blank Holder Force Based on Fracture Criterion and Its Applications 基于破裂失效准则的变压边力理论及其工程应用
- Study of Variable Blank Holder Force Control Forming on Deep-drawing Process of Conical Parts 圆锥形件拉深过程中变压边力的研究
- The finite element analysis on the blocking and variable blank holder force in the rectangular case drawing 矩形盒分块变压料力拉深的有限元分析
- The study of load curve of critical wrinkless variable blank holder force in the process of deep drawing cylinder parts 圆筒件拉深成形临界防皱变压边力加载曲线研究
- The influence of variable blank holder force on the formability of complex parts 变压边力对复杂零件成形性能的影响
- Improving hydraulic pressure machine into real-time controlling multipoints variable blank holder force with computer 计算机实时控制多点变压边力的液压机改造
- Study on the relativity of the variable blank holder force control and the formability of rectangular box drawing 变压边力控制与矩形件拉深成形特性的相关性研究
- Keywords sheet forming;die;numerical simulation;DYNAFORM;variable blank holder force forming; 板料成形;模具;数值模拟;DYNAFORM;变压边力成形;
- variable blank holder force 变压边力
- Abstract: Blank holder structure and blank holder force （BHF） are very important to the part quality in deep drawing. 摘 要: 压边结构及压边力对板料拉深成形质量有着重要影响。
- The result shows that the blank holder force,which is capable of eliminating the outer crimple,is,however,insufficient to abate the... 结果表明,用正常消除外皱的压边力消除内皱作用微小,而增加压边力确实可以消除内皱。
- Variable BHF (Blank Holder Force) 变压边力
- Blank holder force(BHF) is one of the important parameters in deep drawing process of sheet metal,appropriate control of it can eliminate such defects as wrinkling and fracture. 压边力是板料拉延成形过程的重要工艺参数之一,合理控制压边力的大小,可避免成形件起皱或破裂等缺陷。
- Using finite element method (FEM) simulation, the blank holder force(BHF) for fracture is gained on the base of analysis of facture in different BHF and drawing depth. 利用有限元仿真模拟手段,以圆毛坯为智能拉深的研究对象,通过对不同压边力作用下对盒形件拉深进行破裂预测分析。给出了盒形件拉伸破裂的临界压边力规律。
- Pulsating blank holder forces are used in deep-drawing process to increase the draw depth and improve the surface quality of drawn piece . 采用脉动变化的压边力控制拉深工艺,可提高成形极限及拉深件的表面质量。
- The result indicates that proper blank holder force and liquid pressure will help to reduce the occurrence of drawing defects and the application of hydroforming can get more uniform wall thickness. 研究结果表明,合适的压边力和液体压力能控制盒形件拉深缺陷的发生,采用液压拉深盒形件可获得更好的壁厚分布。
