In Situ Evaluation of Crack Generation Using Acoustic Emission Technique during Laser Cladding of WC-Co Cemented Carbide via Multi-Beam Laser Metal Deposition

Yorihiro Yamashita; Mitsuki Nakamura; Mirai Sakai; Takahiro Kunimine; Yuji Sato; Yoshinori Funada; Masahiro Tsukamoto

doi:10.4028/p-lcxim9

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HomeMaterials Science ForumMaterials Science Forum Vol. 1083In Situ Evaluation of Crack Generation Using...

In Situ Evaluation of Crack Generation Using Acoustic Emission Technique during Laser Cladding of WC-Co Cemented Carbide via Multi-Beam Laser Metal Deposition

Abstract:

In-situ evaluation of crack generation using acoustic emission (AE) technique as a non-destructive testing method was applied during laser cladding of WC-Co cemented carbide via a multi-beam laser metal deposition (LMD) system. Especially, this study aims to investigate relationships between the laser output and the number of cracks generated in beads of WC-12mass%Co cemented carbide cladded by the LMD system. The number of cracks was evaluated using an AE sensor attached to a substrate. The number of cracks was also evaluated from SEM images of beads. By comparing these results, problems in the both evaluation methods for crack generation in laser cladding were discussed.

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Periodical:

Materials Science Forum (Volume 1083)

Pages:

153-158

DOI:

https://doi.org/10.4028/p-lcxim9

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Online since:

April 2023

Authors:

Yorihiro Yamashita*, Mitsuki Nakamura, Mirai Sakai, Takahiro Kunimine, Yuji Sato, Yoshinori Funada, Masahiro Tsukamoto

Keywords:

Acoustic Emission (AE), Cemented Carbide, Cladding, Crack, Laser Metal Deposition (LMD), Multi-Beam Laser

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