The paper firstly summarizes some things about cold-roll forming and its simulation in our country and international, introduces the work's background and significance.
本文首先对国内外冷弯成型领域及其数值模拟领域的工作进展情况进行了概括和总结，阐述了本文立题的背景和意义。
参考来源 - 冷变成型过程的有限元数值模拟·2,447,543篇论文数据，部分数据来源于NoteExpress
The paper firstly summarizes some things about cold-roll forming and its simulation in our country and international, introduces the work's background and significance.
本文首先对国内外冷弯成型领域及其数值模拟领域的工作进展情况进行了概括和总结，阐述了本文立题的背景和意义。
Cold-roll void forming sheet is an important product in cold-roll forming 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。
The spline tube differs greatly from the spline shaft parts in the cold roll forming process, which has a complex process with large blank deforming quantity.
花键管冷滚轧精密成形过程不同于花键轴类零件，其坯料金属变形量大，成形过程较为复杂。
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