ironing drawing

基本解釋

This paper simulates the deformation process of ironing deep drawing by means of the upper bound element method.
利用上限元法對變薄拉深過程進行了數值模擬。
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But the strength of the cartridge case after ironing drawing cannot be accurately calculated by this formula, because the result of calculation is lower than that reached in practice.
用常規(guī)的冪強化公式計算藥筒在引伸后的強度時，數值偏低較多，原因是該公式未考慮引伸凹模錐角對強化的影響。

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