High-strain-rate deformation in ultrasonic additive manufacturing

Hiromichi Fujii; Saki Shimizu; Yutaka S. Sato; Hiroyuki Kokawa

doi:10.1016/j.scriptamat.2016.12.030

High-strain-rate deformation in ultrasonic additive manufacturing

Hiromichi Fujii, Saki Shimizu, Yutaka S. Sato, Hiroyuki Kokawa

ENG - Materials Processing

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

High-strain-rate deformation in ultrasonic additive manufacturing was analyzed by performing microstructural characterization via electron microscopy. The micro-asperities on the top tape surface, which were formed by contact with the sonotrode surface, underwent cyclic deformation in the shear direction at high strain rates during welding with an additional tape. This caused plastic flow and crushing of the micro-asperities, and a flattened interface was formed between the upper and lower tapes. Further, surface oxide films were fractured and dispersed by ultrasonic vibration, and metallurgical welding was achieved.

Original language	English
Pages (from-to)	125-129
Number of pages	5
Journal	Scripta Materialia
Volume	135
DOIs	https://doi.org/10.1016/j.scriptamat.2016.12.030
Publication status	Published - 2017 Jul 1

Keywords

Al alloy 6061
High-strain-rate deformation
Plastic flow
Ultrasonic additive manufacturing
Ultrasonic welding

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2016.12.030

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title = "High-strain-rate deformation in ultrasonic additive manufacturing",

abstract = "High-strain-rate deformation in ultrasonic additive manufacturing was analyzed by performing microstructural characterization via electron microscopy. The micro-asperities on the top tape surface, which were formed by contact with the sonotrode surface, underwent cyclic deformation in the shear direction at high strain rates during welding with an additional tape. This caused plastic flow and crushing of the micro-asperities, and a flattened interface was formed between the upper and lower tapes. Further, surface oxide films were fractured and dispersed by ultrasonic vibration, and metallurgical welding was achieved.",

keywords = "Al alloy 6061, High-strain-rate deformation, Plastic flow, Ultrasonic additive manufacturing, Ultrasonic welding",

author = "Hiromichi Fujii and Saki Shimizu and Sato, {Yutaka S.} and Hiroyuki Kokawa",

note = "Funding Information: The authors are grateful to Mr. Akira Honda and Dr. Kosei Kobayashi for technical assistance, and to Prof. Sudarsanam Suresh Babu, Dr. Ramanujam Sriraman, and Dr. Sergey Mironov for discussions and help. The authors also thank the research staff of the Edison Welding Institute (EWI) for providing access to the UAM machine. This work was supported by a Grant-in-Aid for Young Scientists (B) (24760590) and Excellent Young Researchers Overseas Visit Program from the Japan Society for the Promotion of Science (JSPS). Publisher Copyright: {\textcopyright} 2017 Acta Materialia Inc.",

year = "2017",

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doi = "10.1016/j.scriptamat.2016.12.030",

language = "English",

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TY - JOUR

T1 - High-strain-rate deformation in ultrasonic additive manufacturing

AU - Fujii, Hiromichi

AU - Shimizu, Saki

AU - Sato, Yutaka S.

AU - Kokawa, Hiroyuki

N1 - Funding Information: The authors are grateful to Mr. Akira Honda and Dr. Kosei Kobayashi for technical assistance, and to Prof. Sudarsanam Suresh Babu, Dr. Ramanujam Sriraman, and Dr. Sergey Mironov for discussions and help. The authors also thank the research staff of the Edison Welding Institute (EWI) for providing access to the UAM machine. This work was supported by a Grant-in-Aid for Young Scientists (B) (24760590) and Excellent Young Researchers Overseas Visit Program from the Japan Society for the Promotion of Science (JSPS). Publisher Copyright: © 2017 Acta Materialia Inc.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - High-strain-rate deformation in ultrasonic additive manufacturing was analyzed by performing microstructural characterization via electron microscopy. The micro-asperities on the top tape surface, which were formed by contact with the sonotrode surface, underwent cyclic deformation in the shear direction at high strain rates during welding with an additional tape. This caused plastic flow and crushing of the micro-asperities, and a flattened interface was formed between the upper and lower tapes. Further, surface oxide films were fractured and dispersed by ultrasonic vibration, and metallurgical welding was achieved.

AB - High-strain-rate deformation in ultrasonic additive manufacturing was analyzed by performing microstructural characterization via electron microscopy. The micro-asperities on the top tape surface, which were formed by contact with the sonotrode surface, underwent cyclic deformation in the shear direction at high strain rates during welding with an additional tape. This caused plastic flow and crushing of the micro-asperities, and a flattened interface was formed between the upper and lower tapes. Further, surface oxide films were fractured and dispersed by ultrasonic vibration, and metallurgical welding was achieved.

KW - Al alloy 6061

KW - High-strain-rate deformation

KW - Plastic flow

KW - Ultrasonic additive manufacturing

KW - Ultrasonic welding

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U2 - 10.1016/j.scriptamat.2016.12.030

DO - 10.1016/j.scriptamat.2016.12.030

M3 - Article

AN - SCOPUS:85008682048

SN - 1359-6462

VL - 135

SP - 125

EP - 129

JO - Scripta Materialia

JF - Scripta Materialia

ER -

High-strain-rate deformation in ultrasonic additive manufacturing

Abstract

Keywords

ASJC Scopus subject areas

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