曲面零件拉深成形中，应力分界圆是非常重要的因素。
The stress boundary constitutes an important factor in drawing curved surface parts.
圆锥形零件是曲面类零件拉深成形中较为典型的零件之一，对其充液成形的研究具有实际意义。
Since conical part is one of the typical curved parts in sheet metal drawing, research on it has actual significance.
拉深是一种十分重要的零件成形方法，在汽车、飞机等工业领域得到了广泛的应用。
Deep drawing is an extremely important process for part fabrication and is widely used in automobile, aircraft and other industries.
分析了后减震器帽的成形工艺，介绍了成形该零件的拉深模、翻边模以及旋压模具结构。
The forming technology of rear shock absorber cap is analyzed, and its drawing die, flanging die and spinning die structure are also introduced.
采用该方法成形的零件，表面光滑、无拉深压痕。
The parts shaped in this way are free of dents but with smooth surfaces.
在该加载模式下，拉深件无起皱和拉裂缺陷，零件区域厚度分布均匀，整体成形质量较好，满足设计和使用要求。
In this mode, there is no wrinkle and crack in drawing parts, the thickness distribution is even and the overall forming quality is better, which meet the design and use requirements.
在该加载模式下，拉深件无起皱和拉裂缺陷，零件区域厚度分布均匀，整体成形质量较好，满足设计和使用要求。
In this mode, there is no wrinkle and crack in drawing parts, the thickness distribution is even and the overall forming quality is better, which meet the design and use requirements.
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