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- critical blank holder force 临界压边力
- 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。
- 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。
- 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。
- Elastic rubber method and rigid blank holders were used to apply blank holder force with different methods. 对压边力的控制采用了弹性橡胶控制法和刚性直接控制法。
- 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。
- variable blank holder force(VBHF) 变压边力
- variable blank holder force (VBHF) 变压边力
- Variable BHF (Blank Holder Force) 变压边力
- Varied blank holder force ( VBHF) 变压边力
- 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 predominant failure mode in stamping of sheet metal parts are wrinkling and fracture , in general, these defects may be eliminated by appropriate manipulated the blank holder forces. 起皱和断裂是板料成形过程的主要失效模式,合理控制成形过程中压边力,可以消除这些缺陷,提高成形性能。
- The predominant failure mode in stamping of sheet metal parts are wrinkling and fracture, in general, these defects may be eliminated by appropriate manipulated the blank holder forces. 摘要起皱和断裂是板料成形过程的主要失效模式，合理控制成形过程中压边力，可以消除这些缺陷，提高成形性能。
- Rectangular box drawing die design of controlled blank holder force 可控变压边力的盒形件拉深模具设计
- System of Variable Blank Holder Force in Deep Drawing 板料拉深变压边力系统
- New drawing die configuration with proper blank holder force 适力压边拉深模设计
- The Realization of Blank Holder Force Control on Hydraulic Drawing Press 液压拉深机压边力控制的实现
- Keywords Blank holder force （BHF）;Aritificial neural networks （ANN）;Fuzzy; 压边力;人工神经网络;模糊控制;
