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IntroductionRollformingisoneoftheimportantmanufacturingmethodsofmetalproducts.Someresearchersstudiedrollformingprocessbydifferentanalysismethods .T .R .WalkerandR .J.Pick[1]conductedthegeometricmodelingofanERWpipeskelp ,andpresentedanexperimentalmethodtoche… 相似文献
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