Forged part and forming procedure and stroke-load curve obtained from rigid plastic FE simulation further discloses the deformation mechanics of closed die extrusion for spiral bevel driving gear.

刚塑性有限元计算所得的齿轮锻件图、成形过程图、轴向断面网格图和力能曲线进一步揭示了螺旋伞齿轮塑性成形机理；

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An optimization method for preform die shape in non-isothermal metal forming using plastic finite element method, sensitivity analysis and engineering optimization algorithm is presented.

采用塑性有限元、灵敏度分析和工程优化算法相结合的方法，对非等温成形过程中预锻模具形状进行了优化设计。

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Drawing forming technology is one of advanced technologies for glass fibre reinforced plastic. Drawing die is the key to manufacture glass fibre reinforced plastic products.

玻璃钢制品拉拔工艺是较为先进的制造工艺之一，拉拔模具是决定玻璃钢制品质量好坏的关键。

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