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TA15钛合金激光熔化沉积工艺参数对超声检测精度的影响

Effects of Laser Melting Deposition Process Parameters on Ultrasonic Testing Accuracy of TA15 Titanium Alloy

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摘要

金属增材制造产品的材料特性相对于传统制造工艺的有所不同,故原有超声无损检测方法不再适用。为探索金属增材制品的超声无损检测特性,提高超声无损检测精度,采用激光熔化沉积工艺并以TA15钛合金作为材料,制作具有相同外形尺寸、不同激光功率和搭接率的检测样块。使用相控阵超声设备对比分析了不同工艺参数下该材料的接触式超声波纵波灵敏度和声速。结果表明:激光功率对超声检测灵敏度影响较大;成形方向和工艺参数对超声声速有影响,其中成形方向影响较大。因此,对比试块的材料和工艺参数应与待检件相同,检测时需对待检件每个检测方向的声速分别进行标定。

Abstract

Since the material properties of metal additive components differ from those produced by traditional manufacturing processes, the original ultrasonic nondestructive testing methods are no longer applicable. To study the ultrasonic nondestructive testing characteristics of metal additive components and improve the ultrasonic nondestructive testing accuracy, TA15 alloy specimens are prepared by laser melting deposition with different laser powers and overlap rates. The sensitivity and sound velocity of the longitudinal wave, which are excited by contact ultrasonic testing with a phased array ultrasonic equipment, are compared and analyzed. Results show that ultrasonic sensitivity is considerably affected by laser power. Ultrasonic velocity is affected by the forming direction and process parameters. Forming direction is a more important parameter. The material and process parameters of the reference block should be the same as those of the parts to be tested. In addition, the sound velocity in each detection direction of the parts should be calibrated.

Newport宣传-MKS新实验室计划
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中图分类号:TN249; TB559

DOI:10.3788/AOS201939.1014002

所属栏目:激光器与激光光学

基金项目:国家重点研发计划、国家自然科学基金;

收稿日期:2019-05-09

修改稿日期:2019-06-27

网络出版日期:2019-10-01

作者单位    点击查看

孙长进:中国科学院沈阳自动化研究所, 辽宁 沈阳 110016中国科学院机器人与智能制造创新研究院, 辽宁 沈阳 110016中国科学院大学工程科学学院, 北京 100049
赵吉宾:中国科学院沈阳自动化研究所, 辽宁 沈阳 110016中国科学院机器人与智能制造创新研究院, 辽宁 沈阳 110016
赵宇辉:中国科学院沈阳自动化研究所, 辽宁 沈阳 110016中国科学院机器人与智能制造创新研究院, 辽宁 沈阳 110016
何振丰:中国科学院沈阳自动化研究所, 辽宁 沈阳 110016中国科学院机器人与智能制造创新研究院, 辽宁 沈阳 110016
王志国:中国科学院沈阳自动化研究所, 辽宁 沈阳 110016中国科学院机器人与智能制造创新研究院, 辽宁 沈阳 110016
高元:中国科学院沈阳自动化研究所, 辽宁 沈阳 110016中国科学院机器人与智能制造创新研究院, 辽宁 沈阳 110016东北大学机械工程与自动化学院, 辽宁 沈阳 110819

联系人作者:赵宇辉(yhzhao@sia.cn)

备注:国家重点研发计划、国家自然科学基金;

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引用该论文

Sun Changjin,Zhao Jibin,Zhao Yuhui,He Zhenfeng,Wang Zhiguo,Gao Yuan. Effects of Laser Melting Deposition Process Parameters on Ultrasonic Testing Accuracy of TA15 Titanium Alloy[J]. Acta Optica Sinica, 2019, 39(10): 1014002

孙长进,赵吉宾,赵宇辉,何振丰,王志国,高元. TA15钛合金激光熔化沉积工艺参数对超声检测精度的影响[J]. 光学学报, 2019, 39(10): 1014002

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