Effects of Electroshock Treatment on Residual Stress and the Geometric Dimensions of Components Fabricated with Wire Arc Additive Manufacturing

In wire arc additive manufacturing, residual stress is generated from a nonuniform thermal distribution, resulting in the fabricated component demonstrating large deformation. This study explored the effects of electroshock treatment (EST) on the residual stress and geometric dimensions of additive...

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Main Authors: Min Wu, Zeqi Hu, Xunpeng Qin
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/12/9/1434
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author Min Wu
Zeqi Hu
Xunpeng Qin
author_facet Min Wu
Zeqi Hu
Xunpeng Qin
author_sort Min Wu
collection DOAJ
description In wire arc additive manufacturing, residual stress is generated from a nonuniform thermal distribution, resulting in the fabricated component demonstrating large deformation. This study explored the effects of electroshock treatment (EST) on the residual stress and geometric dimensions of additive manufacturing components. A special and innovative stress frame was built with wire arc additive manufacturing, on which the EST was conducted. Changes in the residual stress, geometric dimensions, temperature, microstructure, and dislocation distribution on the stress frame during processing were investigated. According to the experimental results, it was concluded that the dislocation density decreased and that the distribution was more homogeneous after EST, which was affected by electron wind force. Finally, the residual stress was reduced, and the geometric dimensions were improved on the substrate.
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spelling doaj.art-0fdd6d0974bc4bda96eb26bc017b5dda2023-11-23T17:45:57ZengMDPI AGMetals2075-47012022-08-01129143410.3390/met12091434Effects of Electroshock Treatment on Residual Stress and the Geometric Dimensions of Components Fabricated with Wire Arc Additive ManufacturingMin Wu0Zeqi Hu1Xunpeng Qin2School of Automotive Engineering, Wuhan University of Technology, Wuhan 430074, ChinaSchool of Automotive Engineering, Wuhan University of Technology, Wuhan 430074, ChinaSchool of Automotive Engineering, Wuhan University of Technology, Wuhan 430074, ChinaIn wire arc additive manufacturing, residual stress is generated from a nonuniform thermal distribution, resulting in the fabricated component demonstrating large deformation. This study explored the effects of electroshock treatment (EST) on the residual stress and geometric dimensions of additive manufacturing components. A special and innovative stress frame was built with wire arc additive manufacturing, on which the EST was conducted. Changes in the residual stress, geometric dimensions, temperature, microstructure, and dislocation distribution on the stress frame during processing were investigated. According to the experimental results, it was concluded that the dislocation density decreased and that the distribution was more homogeneous after EST, which was affected by electron wind force. Finally, the residual stress was reduced, and the geometric dimensions were improved on the substrate.https://www.mdpi.com/2075-4701/12/9/1434residual stressgeometric dimensionadditive manufacturingelectroshock treatmentdislocation
spellingShingle Min Wu
Zeqi Hu
Xunpeng Qin
Effects of Electroshock Treatment on Residual Stress and the Geometric Dimensions of Components Fabricated with Wire Arc Additive Manufacturing
Metals
residual stress
geometric dimension
additive manufacturing
electroshock treatment
dislocation
title Effects of Electroshock Treatment on Residual Stress and the Geometric Dimensions of Components Fabricated with Wire Arc Additive Manufacturing
title_full Effects of Electroshock Treatment on Residual Stress and the Geometric Dimensions of Components Fabricated with Wire Arc Additive Manufacturing
title_fullStr Effects of Electroshock Treatment on Residual Stress and the Geometric Dimensions of Components Fabricated with Wire Arc Additive Manufacturing
title_full_unstemmed Effects of Electroshock Treatment on Residual Stress and the Geometric Dimensions of Components Fabricated with Wire Arc Additive Manufacturing
title_short Effects of Electroshock Treatment on Residual Stress and the Geometric Dimensions of Components Fabricated with Wire Arc Additive Manufacturing
title_sort effects of electroshock treatment on residual stress and the geometric dimensions of components fabricated with wire arc additive manufacturing
topic residual stress
geometric dimension
additive manufacturing
electroshock treatment
dislocation
url https://www.mdpi.com/2075-4701/12/9/1434
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AT xunpengqin effectsofelectroshocktreatmentonresidualstressandthegeometricdimensionsofcomponentsfabricatedwithwirearcadditivemanufacturing