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- Without these critical blocks, metal flow must be controlled through the use of blank holder pressure alone, which can present a serious problem with parts that are both wrinkled and torn. 没有这些关键的平衡块，通过施加压力在料片上来控制金属材料的流动，而正是这个压力导致零件严重地起皱和撕裂。
- optimization of multipoint blank holder pressure 多点压边力优化
- The structure,main design parameters and work process of the compound die installed on single action press and working for blanking and drawing with constant blank holder pressure were presented. 介绍了用于单动压力机的新型恒压边力落料拉伸复合模的结构及主要设计参数和模具工作过程。
- Design of Drawing Die with Adjustable Constant Blank Holder Pressure 可调式恒压边力拉伸模设计
- Optimization of Multipoint Blank Holder Pressure for Sheet Metal Stretch Forming 板料拉伸成形多点压边力优化
- Keywords drawing;optimization of multipoint blank holder pressure;numerical simulation; 拉伸成形;多点压边力优化;数值模拟;
- Keywords thin-walled sheet part;viscous pressure forming （VPF）;blank holder pressure （BHP）;control; 薄板件;粘性介质压力成形;压边力;控制;
- blank holder pressure 压边力
- constant blank holder pressure 恒压边力
- New Type Compound Die for Blanking and Drawing with Constant Blank Holder Pressure 新型恒压边力落料拉伸复合模
- 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。
- To low drawing in flange part,the blank holder can be used as punch,and the effect is good. 对于凸缘部位的浅拉深,采用压边圈兼作浅拉深凸模的作用,取得较好的效果。
- 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 system is made of hydraulic press,rectangular box drawing die of divided blank holder,hydraulic part of blank holder and control part. 该系统主要由液压机、压边圈分区的矩形件拉深模具、压边装置的液压部分以及控制部分组成。
- It was shown that the contradiction between wrinkle and crack can be settled by flexible blank holder forming.The relation between crac... 而采用柔性压边多点成形方式可以有效避免起皱和拉裂,大大提高变形量,得到更好的成形结果。
- The segment blank holder with a multi-pin system was first designed to load the blank-holder force (BHF) independently in different area of a sheet. 首先设计了分块压边板，采用多点顶杆结构提供拉深所需的压边力，各个顶杆之间相互独立，可在板料不同的区域实现不同的压边力加载。
- 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。
- 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。
- 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。
- Equalizers are spacer blocks mounted on either the blank holder surface or the die face that maintain a specific gap between the die face and blank holder surface. 平衡块是一些安装在压边圈或凹模型面上用来维持压边圈和凹模间的压边面间隙的垫片。
