Comparison of residual stresses obtained by the crack compliance method for parts produced by different metal additive manufacturing techniques and after friction stir processing

被引：0

作者：

Zhao, Lv ^{[1
,2
,4
]}

Santos Macías, Juan Guillermo ^{[2
]}

Dolimont, Adrien ^{[3
]}

Simar, Aude ^{[2
]}

Rivière-Lorphèvre, Edouard ^{[3
]}

机构：

[1] Department of Mechanics, Huazhong University of Science and Technology, Wuhan, China

[2] Institute of Mechanics, Materials and Civil Engineering, UCLouvain, Louvain-la-Neuve, Belgium

[3] Machine Design and Production Engineering Unit, Faculty of Engineering, University of Mons, Mons, Belgium

[4] Hubei Key Laboratory of Engineering Structural Analysis and Safety Assessment, Wuhan, China

来源：

Additive Manufacturing | 2020年 / 36卷

关键词：

Metal additive manufacturing (AM) techniques are promising to build complex components in automotive; aerospace and biomedical industries. However; as built AM parts generally present residual stresses which may degrade the fatigue resistance of the material. Although the AM techniques have been substantially studied; few data about the residual stress level and distribution are available in literature. This paper presents residual stress measurements and analysis on the metal powder bed AM parts using the crack compliance method. Both electron beam melting (EBM) and selective laser melting (SLM) processes are investigated for two manufactured alloys; i.e; Ti6Al4V and AlSi10Mg. It is found that: (i) the EBM process results in negligible residual stresses; (ii) the SLM leads to compressive stresses in the middle; accompanied by tensile stresses at the bottom and the top of the built part; (iii) preheating the build platform in the SLM process significantly reduces the residual stresses and effectively mitigates the porosity. Moreover; we show that post-treatment by friction stir processing inverts the residual stress distribution compared to the SLM process while significantly reducing the porosity. © 2020 Elsevier B.V;

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共 5 条

[1] Comparison of residual stresses obtained by the crack compliance method for parts produced by different metal additive manufacturing techniques and after friction stir processing
Zhao, Lv
Macias, Juan Guillermo Santos
Dolimont, Adrien
Simar, Aude
Riviere-Lorphevre, Edouard
ADDITIVE MANUFACTURING, 2020, 36
[2] A method for rapid estimation of residual stresses in metal samples produced by additive manufacturing
Fedorenko, A.
Firsov, D.
Evlashin, S.
Fedulov, B.
Lomakin, E.
FRATTURA ED INTEGRITA STRUTTURALE-FRACTURE AND STRUCTURAL INTEGRITY, 2024, 18 (68): : 267 - 279
[3] REGULARITIES OF STRUCTURAL CHANGES AFTER FRICTION STIR PROCESSING IN MATERIALS OBTAINED BY THE ADDITIVE METHOD
Gusarova, A., V
Chumaevskii, A., V
Osipovich, K. S.
Kalashnikov, K. N.
Kalashnikova, T. A.
NANOSCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL, 2020, 11 (03) : 195 - 205
[4] Friction stir powder additive manufacturing of Al 6061/FeCoNi and Al 6061/Ni metal matrix composites: Reinforcement distribution, microstructure, residual stresses, and mechanical properties
Chaudhary, Bhavesh
Patel, Mahesh
Jain, Neelesh Kumar
Murugesan, Jayaprakash
Patel, Vivek
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2023, 319
[5] The Regularities of Metal Transfer by a Nickel-Based Superalloy Tool during Friction Stir Processing of a Titanium Alloy Produced by Wire-Feed Electron Beam Additive Manufacturing
Rubtsov, Valery
Chumaevskii, Andrey
Knyazhev, Evgeny
Utyaganova, Veronika
Gurianov, Denis
Amirov, Alihan
Cheremnov, Andrey
Kolubaev, Evgeny
METALS, 2024, 14 (01)

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