Preliminary Experimental Study of Warm Ultrasonic Impact-assisted Laser Metal Deposition
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Abstract A preliminary experimental study on “warm ultrasonic impact-assisted laser metal deposition” (WUI-LMD) is reported, and such a study is rare in literatures to the authors' knowledge. In WUI-LMD, an ultrasonic impact treatment (UIT) tip is placed near laser spot for in-situ treatment of laser-deposited warm solid material, and the UIT and LMD processes proceed simultaneously. Under the conditions investigated, it is found that in-situ UIT during WUI-LMD can be much more effective in reducing porosity than a post-process UIT. Possible underlying mechanisms are analyzed. WUI-LMD has a great potential to reduce defects and improve mechanical properties without increasing manufacturing time.
2016 ◽
Vol 291
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pp. 43-53
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2020 ◽
Vol 780
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pp. 139185
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2013 ◽
Vol 45
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pp. 228-235
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2019 ◽
Vol 758
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pp. 60-70
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2020 ◽
Vol 125
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pp. 106037
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2020 ◽
pp. 1-18
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