查询词典 die forging

Al 2O 3/Al composites were manufactured through melt stirred composing and die forging in semi solid. The effect of processing parameters on the absorbability and dispersiveness of Al 2O 3 particulate in aluminium liquid was investigated.

采用半固态搅熔复合及模锻方法制备Al2 O3 /Al复合材料，讨论了工艺参数对Al2 O3 颗粒在铝合金液中的吸收性与分散性的影响，并对所得复合材料的强度、冲击韧性和耐磨性进行了实验。

The development of bearing structure in heavy die forging hydraulic press.

重型模锻液压机承载结构的发展。

The characteristic of driving system for the dispenser used in ten-thousand-ton multidirectional die forging hydraulic press was analyzed.

摘 要：分析1万t多向模锻水压机分配器驱动系统的结构特点，提出一种智能超差二次调整控制算法。

Based on the construction features of the Upper Beam of Large Open-die Forging Hydraulic Press,a finite element model has been established by using large-scale finite element analysis software I-DEAS,and the structural stress and displacement of the upper beam under all sorts of loads have been analyzed.

根据某大型自由锻造油压机上横梁的结构特点，利用大型通用有限元分析软件I-DEAS建立有限元模型，并对上横梁进行了静力学的有限元分析计算，研究了在满负荷工作状态下上横梁的结构应力以及位移情况。

Hexagonal bolts are usually formed with cold heading. The process is classified as open-die forging and therefore its die design is less complicated. The mushroom-like head has to be sheared into hexagonal shape and the amount of the scrap is somehow significant especially for heading with short bolts or high alloy material. There is an increasing demand in increasing the gross profit by increasing the yield of workpiece material.

六角螺栓头端通常以冷间顶铁成形製程来製造，由於冷间顶铁属於开模锻造，模具设计较容易，但需以剪缘模再对蕈状头端冲剪成为六角头，此剪缘后的废料量不容忽视，尤其对於长度较小的螺栓，或其它应用於紧扣件的高级合金而言，藉由减少废料以提高產品毛利的需求日益迫切。

In order to improve the efficiency, an implementing scheme (according to the distribution of strain energy density) was suggested when to consider the fact that the high gradient usually appears only in a very local region, especially in the case of huge amount of computation. All programming has been finished on the platform of commercial codes Mathmatica and Fortran.4. A number of numerical examples and applications were presented to verify the proposed Bezier-Based Element Method. The engineering cases include: the belt die for diamond synthesize, the main frame of wire-rounded press, the hydraulic cylinder of open die forging press. The numerical results show that the BBEM has some good performances.

通过大量的数值算例来考证所构建的各种类型单元，并应用于人造金刚石年轮模具、钢丝缠绕预应力机架和液压机工作缸等实际问题的结构分析；结果表明：所构建的Bezier耦合单元具有描述较大梯度变化场(如位移场、应力应变场等)的能力，该方法不改变单元的大小和形状，保持单元的自由度数不变，而通过调节中间可动节点的位置改变单元内部的场分布，只需少量单元即可较精确地模拟较大的梯度变化；可为有效求解高梯度问题提供新思路，对实际工程应用具有重要意义。

A number of numerical examples and applications were presented to verify the proposed Bezier-Based Element Method. The engineering cases include: the belt die for diamond synthesize, the main frame of wire-rounded press, the oil cylinder of open die forging press. The numerical results show that the BBEM has some good performances. With few elements, the BBEM can lead to a high accuracy. If using same DOFs, the computing precision of BBEM is remarkable higher than that of the conventional FEM.

通过大量的数值算例来考证所构建的各种类型单元，并应用于人造金刚石年轮模具、钢丝缠绕预应力机架和液压机工作缸等实际问题的结构分析；结果表明：所构建的Bezier耦合单元具有描述较大梯度变化场（如位移场、应力应变场等）的能力，该方法不改变单元的大小和形状，保持单元的自由度数不变，而通过调节中间可动节点的位置改变单元内部的场分布，只需少量单元即可较精确地模拟较大的梯度变化；可为有效求解高梯度问题提供新思路，对实际工程应用具有重要意义。

The characteristics and application for designing the die flash groove of hot die forging were investigated.

探讨了在热模锻模具上设计飞边槽的特点及应用，介绍并分析了飞边槽对热模锻模具使用寿命的影响和对热锻件产品质量的影响。

Through the technology analysis and die design of the support saddle, the application of the liquid die forging technique for complicated parts was introduced.

通过支承座零件的工艺分析和模具设计，介绍了液态模锻技术在复杂零件上的应用。

On the basis of setting up mathematical model on blowing energy of 50KJ hydraulic die forging hammer, through simulation analysis, the relation curve of the blowing route and the blowing energy have been attained under the certainly filled atmospheric pressure and the height of loaded die, and the calculation result of simulation has been validated by experiment.

新闻摘要：在建立了50kJ液压模锻锤打击能量的数学模型的基础上，经过仿真分析，得出了在一定充气压力及装模高度下的打击行程与打击能量的关系曲线，并对仿真计算结果进行了实验验证。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。