The paper firstly summarizes some things about cold-rollforming and its simulation in our country and international, introduces the work's background and significance.
Cold-roll void forming sheet is an important product in cold-rollforming sheet, which usually includes pipe, square tube, rectangle tube and unusual tube made by special requirements.
冷弯空心型钢是冷弯型钢中的一类重要产品,其通常包括圆管、方、矩形管以及按照特殊要求制作的异形管。
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The spline tube differs greatly from the spline shaft parts in the coldrollforming process, which has a complex process with large blank deforming quantity.