Three dimensional rigid plastic FEM simulation of backward extrusion& application of local mesh densification

Backward Extrusion Rotary Swaging Forging

旋转反挤压锻造

Derivation and Experimental Research on the Pressure for Backward Extrusion With Biconical Punch Under Conditions of Semi-active Friction

双锥冲头半积极摩擦反挤压力与实验研究

Experimental Study for Flat Hook-commutator by Integral Cold Backward Extrusion Technology

平面钩型换向器整体反挤压工艺实验研究

The best composite was the one after backward extrusion and heat treatment.

其中力学性能最好的为反挤压后经过热处理的TiB2/Al-Si-Mg-Cu复合材料。

Based on the results of simulation, analysis and research have been done to the metal flow law during backward extrusion, which offer basis to reasonable design of die and technological parameter.

根据模拟结果对反挤压过程中金属的流动规律进行分析和研究，从而为合理设计模具和工艺参数提供依据。

Simplified Slip-Line Solution for the Backward Extrusion Forming of Cup-Shape Parts with Axial-Symmetry

轴对称杯形件反挤压的简化滑移线解

The Optimum Design of Ceramic-steel Combined Backward Extrusion die

陶瓷-钢反挤压组合凹模的优化设计

The main purpose of the paper is to produce high strength and high modulus of aluminum composite pipes through backward extrusion.

本文研究课题的主要目的是通过反挤压工艺制造出高强度，高模量的铝基复合材料管材。

Modified analysis of backward extrusion of internally circular shaped tubes from arbitrarily shaped billets by upper bound elemental technique

任意形状坯料反挤压成形内圆筒的上限单元技术的改善分析

Analysis of superplastic deformation of backward extrusion by the rigid plastic finite element method

用刚塑性有限元法分析超塑性反挤压成形

Wearing and fracture on the punch often apoccur during the forming cylinder of in which a warm backward extrusion process is employed.

采用温挤压成形工艺生产减速顶滑动油缸体时，冲头经常会出现磨损和断裂失效。

A Method to Prevent the Extruded Part Sticking to the Die in Isothermal Backward Extrusion

等温反挤压中挤压件抱模的防治方法

Combination with the design experience, the critical value depth-width ratio in the backward extrusion formation of rectangular shell parts is concluded.

结合模具设计的经验，推断出了反挤压成形矩形壳体零件的临界高／宽比。

Experimental research of the influence of backward extrusion on the mechanical properties of SiCw/ 6061 composite

反挤压对SiCw/6061力学性能影响的实验研究

The backward extrusion process is a chief method to form the parts of nonferrous, iron and steel materials. It has been widely applied to the metal forming industry.

反挤压成形是有色金属、钢铁材料生产与零件成形加工的主要方法之一，在金属塑性成形工业生产中有着广泛的应用。

The experiments prove the effectiveness of semi-active friction in lowering the pressure of backward extrusion for cup-like pieces of rolling bearing steel.

在实验装置上验证了轴承钢半积极摩擦反挤杯形件降低挤压力的效果。

In the second part of the paper, the technology parameters of backward extrusion parts are optimized.

其次，论文对反挤压零件的工艺参数进行了优化。

A Research on Unstable State of Backward Extrusion Pressing

反挤压不稳定状态的研究

Varying law of extrusion force in process of backward extrusion

反向挤压时的挤压力变化规律

Based on rigid-plastic finite element method, backward extrusion process of TB10 titanium alloy cylinder was simulated numerically.

基于刚塑性有限元法，对TB10钛合金筒体反挤压过程进行数值模拟。