The results show that the increasing of material yield strength has a great influence on the flange cracking.
结果表明，材料屈服强度的增加对翻边开裂有很大影响。
The technological design makes use of symmetry and adopts the two mould process, which increases material yield ratio.
文章利用对称性，采用左右合模工艺，提高材料利用率。
The technological design makes use of symmetry and adopts the two mould process, which increases material yield ratio.
文章利用对称性，采用左右合模工艺，提高材料利用率。
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