1.5 GPa级高强度钢板通过滚筒间隙调整平整,考虑到图案滚筒效应
Youngjin Jeon1,2, Kyucheol Jeong1,2, Geun-Ho Kim1,2,3
1Department of Mechanical Design Engineering, Hanyang University, 55, Hanyangdaehak-ro, Sangrok-gu, Ansan 15588, Gyeonggi, Republic of Korea.
Materials (Basel, Switzerland)
|May 7, 2025
概括
这项研究引入了一种用于先进高强度钢板 (AHSS) 的新型卷平技术,显著减少平度缺陷. 优化的工艺实现了80%以上的扭曲和弓箭缺陷的减少,使用独特的斜度第二卷.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
背景情况:
- 先进的高强度钢 (AHSS) 板经常表现出像扭曲和横弓这样的平平度缺陷.
- 传统的滚筒平面化主要使用纵向应力,这对于某些AHSS等级来说效率较低.
研究的目的:
- 分析一个三阶段的卷平工艺,以提高AHSS板的平度.
- 为了研究倾斜的第二卷卷对横向变形和残余应力再分配的影响.
- 为了确定最佳的滚动间隔设置以减少缺陷.
主要方法:
- 对扭曲的AHSS板进行了三阶段的卷平工艺.
- 实验中使用不同的卷隙设置 (1.3,1.1,0.9,0.7毫米) 进行了实验.
- 结果与Abaqus Explicit模拟进行了比较,以验证该过程.
主要成果:
- 最佳的滚动间隔设置为1.1毫米,显示实验和模拟结果之间的最高一致性 (RMSE 0.22毫米).
- 在1.1毫米的间隙中,扭曲和弓箭缺陷减少了80%以上.
- 在较小的间隙 (0.9,0.7毫米) 出现了差异,这是由于实验和模拟之间的滚动固定假设的差异.
结论:
- 调整第二卷的几何形状,以增强横向张力压缩和1.1毫米的间隙有效地减少缺陷.
- 与传统技术相比,这种新的方法可以提高AHSS板材的平面性,使用较少的卷.
- 该研究强调了在模拟和工艺设计中考虑卷板相互作用的重要性.
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