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使用钉钉技术连接的HX340微合金钢板的性能测试
Łukasz Boda1, Jacek Mucha2, Waldemar Witkowski2
1Doctoral School of the Rzeszow University at Technology, Al. Powstancow Warszawy 12, 35-959 Rzeszow, Poland.
Materials (Basel, Switzerland)
|April 9, 2024
概括
本研究探讨了使用可变形钢钉在HX340钢板中形成压接头的方法. 增加子压入深度大大提高了互锁尺寸,这对于关节强度至关重要.
科学领域:
- 材料科学与工程 材料科学与工程
- 制造过程 制造过程 制造过程
- 机械工程 机械工程
背景情况:
- 研究了两个1.5毫米厚的HX340钢板之间的压接头的形成.
- 使用可变形钢钉 (400HV1硬度) 作为连接元件.
- 检查了钉压力深度和压力深度对关节特征的影响.
研究的目的:
- 为了确定HX340钢板之间形成压接头的可能性.
- 分析不同子压入深度和压深度对互锁几何和关节强度的影响.
- 量化过程参数与由此产生的互锁尺寸和负载能力之间的关系.
主要方法:
- 使用"SKB"模具进行了成型试验,模具深度有三种 (1.45, 1.60, 1.75 mm).
- 在上层板表面以下的不同钉压力距离 (0, 0.15, 0.30, 0.45, 0.60毫米).
- 测量了互锁的几何尺寸,并进行了剪切测试以分析关节强度.
主要成果:
- 压深度增加20% (1.45至1.75毫米) 在零度子压深度下,形成力降低12%,最大负载能力降低3.5%.
- 增加子压入深度 (o) 与更大的互锁尺寸 (t) 直接相关.
- 从0mm增加到0.6mm增加子压入深度,导致锁尺寸增加了136% (h=1.45mm),128% (h=1.60mm) 和85% (h=1.75mm).
结论:
- 使用可变形钢钉,可以成功地在HX340钢板之间形成压接头.
- 子压入深度是一个关键参数,显著影响锁尺寸,因此,关节强度.
- 模具深度会影响成形力和负载能力,这表明钉接过程中的工艺参数之间存在复杂的相互作用.
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