Acta Optica Sinica, Volume. 39, Issue 10, 1014002(2019)

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

Changjin Sun1,2,3, Jibin Zhao1,2, Yuhui Zhao1,2、*, Zhenfeng He1,2, Zhiguo Wang1,2, and Yuan Gao1,2,4
Author Affiliations
  • 1Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
  • 2Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
  • 3School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China
  • 4School of Mechanical Engineering and Automation, Northeastern University, Shenyang, Liaoning 110819, China
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    Figures & Tables(9)
    Cross-sectional diagram of multiple channel overlapping
    Relationship among indices of additive manufacturing
    Schematic of ultrasonic testing system
    Real photographs of samples under different laser powers and hatch spaces. (a) 1800 W-2.0 mm; (b) 1200 W-2.0 mm; (c) 900 W-2.0 mm; (d) 600 W-2.0 mm; (e) 1200 W-2.5 mm; (f) 1200 W-3.0 mm
    Waveform comparison. (a) Before smooth; (b) after smooth
    Influences of process parameters on relative amplitude of scattered signal from back wall. (a) Laser power; (b) hatch space
    Influence of material thickness on attenuation of ultrasonic wave amplitude
    Influences of process parameters on ultrasonic velocity. (a) Laser power; (b) hatch space
    • Table 1. Processing parameters and sizes of test specimens

      View table

      Table 1. Processing parameters and sizes of test specimens

      Laser power /WScanning speed v /(mm·s-1)Powder feeding rate g /minSpot diameter D /mmHatch space /mmX /mmY /mmZ /mm
      180060.832.020.1018.1016.08
      120060.832.020.0018.0416.00
      90060.832.020.1018.1416.08
      60060.832.020.0618.0816.08
      120060.832.520.2018.1616.16
      120060.833.020.1018.1216.18
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    Changjin Sun, Jibin Zhao, Yuhui Zhao, Zhenfeng He, Zhiguo Wang, Yuan Gao. Effects of Laser Melting Deposition Process Parameters on Ultrasonic Testing Accuracy of TA15 Titanium Alloy[J]. Acta Optica Sinica, 2019, 39(10): 1014002

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    Paper Information

    Category: Lasers and Laser Optics

    Received: May. 9, 2019

    Accepted: Jun. 27, 2019

    Published Online: Oct. 9, 2019

    The Author Email: Zhao Yuhui (yhzhao@sia.cn)

    DOI:10.3788/AOS201939.1014002

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