零件表面损伤对再制造修复件承载能力影响的超声相控阵检测研究
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

TB553

基金项目:

国家自然科学基金(51675155,51635010,51722502)、中央高校基本科研业务费专项资金(PA2019GDQT0024)资助项目


Influence of surface damage on load carrying capacity of remanufactured repair parts based on ultrasonic phased array
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    零件使用过程中出现的表面损伤会影响其再制造修复时的界面结合质量,从而降低承载能力。 为得到零件表面损伤大 小对修复件承载能力的影响,对表面预制不同宽度损伤的基体材料进行等离子喷焊再制造修复,采用超声相控阵对施加三点弯 曲载荷的修复件进行检测。 根据检测结果,提取 A 扫波形图中二次底波声程,得到不同载荷下二次底波声程变化曲线,根据曲 线转折点得出修复件界面裂纹萌生时的载荷 FA ;通过定量化处理 C 扫俯视图中缺陷并计算其面积占比,得到不同载荷下缺陷 面积占比的变化曲线,根据曲线转折点得出界面初始缺陷演化时的载荷 FC 。 结果表明,FA 和 FC 都能够反映修复件承载能力 与基体表面损伤的线性关系;在误差小于 5%的前提下,表面损伤宽度每增加 1 mm,修复件承载能力约下降 0. 1 kN;并且相较于 FA ,FC 的大小降低了 11. 12%,从而能够建立表面损伤对修复件承载能力的影响规律,为评定表面损伤零件的再制造质量提供 了及时有效的途径。

    Abstract:

    The surface damage during the use of parts will affect the interface bonding quality during remanufacturing and repair, so that reducing the bearing capacity. In order to obtain the effect of surface damage on the load carrying capacity of repaired parts, plasma arc welding was used to repair the matrix materials with different width of the surface prefabricated damage, and ultrasonic phased array was used to detect the repaired parts with three-point bending load. According to the test results, the sound path of the second bottom wave is extracted from the A-scan waveform, and the change curve of the sound path of the second bottom wave under different loads is obtained, which can get the load at the interface crack initiation of the repair part ( FA ) from the turning point of the curve. By quantifying the defects in the C-scan top view and calculating the area proportion, the change curve of the defect area proportion under different loads is obtained, which can get the load at the interface initial defect evolution of the repair part (FC ) from the turning point of the curve. The results show that both FA and FC can reflect the linear relationship between the load carrying capacity of the repaired parts and the surface damage of the matrix; on the premise of the error less than 5%, the load carrying capacity of the repaired parts decreases by 0. 1 kN for every 1 mm increase in the width of the surface damage. Moreover, compared with FA , the size of FC decreases by 11. 12%, which provides a timely and effective way to evaluate the remanufacturing quality of surface damaged parts.

    参考文献
    相似文献
    引证文献
引用本文

黄海鸿,刘文杰,钱正春,王江龙,柯庆镝.零件表面损伤对再制造修复件承载能力影响的超声相控阵检测研究[J].电子测量与仪器学报,2020,34(7):32-41

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2023-11-20
  • 出版日期: