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对叉轴的等离子体接顺序和性能验证的优化:同向和反向接的比较
Jianguang Yang1, Peigang Cao2, Jiaqing Yao1
1College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, China.
Materials (Basel, Switzerland)
|January 25, 2025
概括
研究转叉轴的等离子接序列显示,相反方向的接会导致更高的应力,尽管具有相似的变形. 最佳的工艺确保了带有提高硬度但降低性的无声接.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 制造过程 制造过程 制造过程
背景情况:
- 变速叉轴对于变速箱中的轮合至关重要.
- 了解接对其完整性的影响对于性能至关重要.
研究的目的:
- 分析不同接序对变速叉轴变形和等离子接过程中的残余应力的影响.
- 为了确定一个最佳的接工艺,以改善机械性能.
主要方法:
- 使用温度移位合有限元素方法与ABAQUS模拟软件.
- 使用双圆形热源模型进行数值分析.
- 进行实验性接,微观结构观测,机械性能测试和断裂表面分析.
主要成果:
- 接方向会影响变形方向,但不会影响变形大小;相反方向的接会增加应力度.
- 实验性接没有显示表面缺陷,在聚变区有细粒度的费里特和马石.
- 接接的硬度在35-50HRC之间,超过了基材;拉伸强度达到基材的94%.
结论:
- 最佳的接序可以在变速叉轴中产生高质量的接.
- 在保持强度的同时,等离子体接会影响塑性和性.
- 进一步的研究可能会优化强度,可塑性和性的平衡.
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