| 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 |
| 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 |
| Influence of surface damage on load carrying capacity ofremanufactured repair parts based on ultrasonic phased array |
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| DOI： |
| 中文关键词: 表面损伤 承载能力 超声相控阵 A 扫波形图 C 扫俯视图 |
| 英文关键词:surface damage load carrying capacity ultrasonic phased array A-scan waveform C-scan top view |
| 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 |
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| Author | Institution |
| Huang Haihong | 1. School of Mechanical Engineering,Hefei University of Technology,2. Key Laboratory of Green Design and Manufacturing of Mechanical Industry,Hefei University of Technology |
| Liu Wenjie | 1. School of Mechanical Engineering,Hefei University of Technology,2. Key Laboratory of Green Design and Manufacturing of Mechanical Industry,Hefei University of Technology |
| Qian Zhengchun | 1. School of Mechanical Engineering,Hefei University of Technology,2. Key Laboratory of Green Design and Manufacturing of Mechanical Industry,Hefei University of Technology |
| Wang Jianglong | 1. School of Mechanical Engineering,Hefei University of Technology,2. Key Laboratory of Green Design and Manufacturing of Mechanical Industry,Hefei University of Technology |
| Ke Qingdi | 1. School of Mechanical Engineering,Hefei University of Technology,2. Key Laboratory of Green Design and Manufacturing of Mechanical Industry,Hefei University of Technology |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
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