blank holder

According to the forming theory of square-box part and the deformation characteristics of TWB under force, some main factors were analyzed, including blank holder force ( BHF), thickness difference, the mechanical properties of blank and the weld location.

根据盒形件的冲压成形理论，并结合拼焊板受力时的变形特点分析了影响拼焊板冲压成形的主要因素，即压边力、板厚差、板料力学性能和焊缝位置等。

The structure of a drawing die without a blank holder and with a flange is proposed.

介绍了裙边油底壳拉伸模结构,裙边油底壳周边需在凹模和压边圈拉伸成形.

Realization of a Hydraulic Control& Sampling System for Variable Blank Holder Force

一种变压边力液压控制及采集系统的实现

Expert System Based on Fuzzy Neural Network for the Optimal Control of Blank Holder Force

基于模糊神经网络的压边力优化控制专家系统

In the end of the paper, we proposed the principle of the variable blank-holder force control, established the blank-holder force control system by analyzing the demand of the blank holder force during the process of the deep drawing.

最后，本文从矩形件拉深过程对压边力需求的分析中，提出了变压边力控制方法的原理，建立了变压边力拉深实验系统。

The Optimal Design for Process Parameters of the Cylindrical Cup Drawing Without Blank Holder

筒形件无压边圈拉深工艺参数优化设计

Restore the plug inside the unit by sliding the plug button while pressing it. Control on blank holder pressure ( BHP) during viscous pressure forming ( VPF) thin-walled sheet metal parts

边按压边向机内侧滑动，使插头按钮收藏在机内。薄板件粘性介质压力成形过程的压边力控制

The definition methods of blank holder force, punch velocity and lubrication condition are elaborated.

阐述了如何设置压边力 、 凸模速度、润滑等工艺条件.

The effects of blank holder pressure and lubricated condition against friction on the stamping forming were dis ˉ cussed as well.

在合理工艺的基础上讨论了压边力和摩擦润滑条件对冲压成形的影响。

The Design and Application of Variable Midpoints Blank Holder Force Control Algorithm Based on BP Neural Networks

基于神经网络的压边力可变分区控制算法设计与实现

This paper briefly introduces a new dual blank-holder.

介绍了一种新型的双层组合压边圈.

The world present development about the blank holder force ( BHF) control technology in the sheet metal deep drawing process has been introduced with discussion about the main problems and directions in the research.

介绍了国内外板料拉深成形过程中压边力控制技术的发展现状熏并讨论了研究过程中存在的主要问题和研究的发展方向。

The springback angle increases with the increase of the punch round radius and clearances between the punch and the die while decreases with increase of the blank holder force, sheet thickness, friction coefficient and material hardening exponent.

回弹角随凸模圆角半径和凸凹模间隙的增大而增大，随压边力、板料厚度、摩擦系数和材料硬化指数的增大而减小。

Different blank-holder gaps and separation forces are used to control the blank holding force ( BHF ).

压边力采用不同的压边间隙和施加不同的分离力来实现.

Increasing the proportion of thick sheet of the TWBs, using split blank holder, imposing constraint on the weld and setting draw beads can restrain the movement of weld effectively.

增大拼焊板板坯厚板侧所占的比例、采用分瓣压边圈、对焊缝施加约束、设置拉深筋等方法，能够有效地抑制焊缝的移动问题。