结果表明此方法预测铬青铜反挤压力是有效和可行的。
The results indicate that this way is a valid and feasible way for predicting the extrusion load.
对一种底部带凸缘的深杯形件的正、反挤压工艺分别进行了试验研究。
The test and study respectively on the forward and backward extruding technology for deep-cup-typed component with flange on base were conducted.
介绍了毛坯制备处理、反挤压模具结构设计及主要零件的加工技术要求。
The preparation treatment of the blank, the structure design of the backward extruding die and the manufacturing technical requirements of the main part are introduced.
采用主应力法与数值模拟相结合的方法，研究分析空心坯料反挤压成形力变化规律。
Forming force during backward extrusion of hollow billet was analyzed by slab method and numerical simulation.
复杂盒形零件的反挤压是一个极其不均匀的流动过程 ，坯料的相对形状及尺寸是影响金属流动的关键因素。
Metal flow is a very inhomogeneous process during backward extrusion of complex box body, Relative shape and size of the blank is a key factor which affect metal flow.
得到了在不同情况下出现的光子反聚束、光场的亚泊松行为以及光场的挤压性质。
We obtain antibunching of photons. the sub-poissonian behaviour of optical fields and their squeezing properties in different cases.
本文对空心件反挤的单位挤压力，采用滑移线法和上限法进行了计算。
The unit pressure in backward extruding hollow billet has been calculated by the slip line method and the upper bound method.
本文对空心件反挤的单位挤压力，采用滑移线法和上限法进行了计算。
The unit pressure in backward extruding hollow billet has been calculated by the slip line method and the upper bound method.
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