Development of Three-dimensional Characterizations and Electro-pulse Repairing Technology for Forming Defects within Ti Component by Laser Additive Manufacturing

DANG Ning; WEI Chen; HUI Cheng; YANG Yuanyu; YANG Shangyu; WANG Jianjun; HAN Lihong

Volume 39 Issue 4

Aug. 2024

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Development and Application of Materials > 2024 > 39(4): 83-97.

DANG Ning, WEI Chen, HUI Cheng, YANG Yuanyu, YANG Shangyu, WANG Jianjun, HAN Lihong. Development of Three-dimensional Characterizations and Electro-pulse Repairing Technology for Forming Defects within Ti Component by Laser Additive Manufacturing[J]. Development and Application of Materials, 2024, 39(4): 83-97.

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Development of Three-dimensional Characterizations and Electro-pulse Repairing Technology for Forming Defects within Ti Component by Laser Additive Manufacturing

1. CNPC Tubular Goods Research Institute, Xi'an 710077, China;
2. Baoji China Gas City Gas Development Co., Ltd., Baoji 721000, China;
3. China petroleum Changqing Oilfield Branch Petroleum Gas Technology Research Institute, Xi'an 710000, China;
4. China Petroleum Xinan Oilfield Branch Co., Ltd., Chengdu 610000, China

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Received Date: November 27, 2023
Available Online: September 11, 2024

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Abstract

Abstract

Additive manufacturing technology has the advantages of large design freedom, no need for dies, and near net forming, so the technology has broad application prospects in aerospace, ocean engineering, petroleum engineering and other fields. However, due to the low heat conductivity and limitation of mold-filling capacity of high-strength alloys such as titanium alloys, their laser-formed components are prone to form defects such as pores, hot cracks, and cold cracks, which will reduce their mechanical properties. Recently, in order to dig out the micro-mechanism of forming defects, researchers have introduced several characterizing methods for analyzing the defects. In addition, on the basis of the results from the defects characterizations, technologies have been generated for repairing defects. In this article, we summarize the development of non-damaged three-dimensional characterizing technologies for forming defects, as well as the non-damaged defects repairing technologies. In the end, we also indicate the prospect of defects analysis and reparation for the components by laser additive manufacturing.
- additive manufacture,
- forming defects,
- three-dimensional characterization,
- electro-pulsing treatment,
- defects reparation

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References (108)

References

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[9]	SONG Xi-ning, LI Wen-ying, ZHANG Tian-hui. Welding Method Effect Research on Defects Type of Steel WDB620[J]. Development and Application of Materials, 2009, 24(6): 15-18. DOI: 10.19515/j.cnki.1003-1545.2009.06.004
[10]	Fu Bufang. Analyses on Defects of Manual Molding RPUF[J]. Development and Application of Materials, 2002, 17(2): 31-33. DOI: 10.19515/j.cnki.1003-1545.2002.02.010

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Development of Three-dimensional Characterizations and Electro-pulse Repairing Technology for Forming Defects within Ti Component by Laser Additive Manufacturing

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Development of Three-dimensional Characterizations and Electro-pulse Repairing Technology for Forming Defects within Ti Component by Laser Additive Manufacturing

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