Based on the electric analog method for blank unfold which has already exist, a new reverse educing method about bulge-blank unfold based on equipotential field is introduced.
基于已有的电模拟坯料展开方法，提出了一种新的关于胀形件的类等势场反推坯料展开方法。
A new reverse educing method about forming blank has been given based on the similar equipotential-field, which refers to the universal law of the electric field analogy theory.
依据电场模拟的一般规律，提出了一种基于等势场的材料成形坯料反推新方法——类等势场反推法。
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