Residual stress homogenization of SiCP/Al composites with thermal vibration coupling

Wu, Qiong; Miao, Wei-shou; Zhang, Yidu; Xie, Dong-jian; Yang, Min

doi:10.1007/s00170-020-06458-5

Cited by 9 publications

(3 citation statements)

References 31 publications

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“…Recently, a thermal-vibration stress relief (TVSR) method was proposed and has aroused extensive interest from researchers [ 24 , 25 , 26 , 27 ]. Song et al [ 25 ] reported that the circumferential and axial residual stresses of large aluminum alloy rings were released by 44.43% and 45.14%, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Song et al [ 25 ] reported that the circumferential and axial residual stresses of large aluminum alloy rings were released by 44.43% and 45.14%, respectively. Wu et al [ 26 ] found that the maximum reduction of stress in SiCP/Al reduced by 81%. Gao et al [ 27 ] studied the stress relief effect of TVSR on titanium alloy; the results illustrated that the stress relief rate of TVSR with a 300 MPa dynamic stress at 280 °C can reach more than 90%, which is 45.04% higher than VSR with the same dynamic stress, and the efficiency of TVSR is 4.2 times that of TSR with a similar stress relief effect.…”

Section: Introductionmentioning

confidence: 99%

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Research on Residual Stresses and Microstructures of Selective Laser Melted Ti6Al4V Treated by Thermal Vibration Stress Relief

Chen

Gao

et al. 2023

Micromachines

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The efficient and cost-effective residual stress control method is of great significance for the application of additive manufacturing (AM) technology. In this work, thermal-vibration stress relief (TVSR) with different temperatures and dynamic stresses was performed on Ti6Al4V samples prepared by selective laser melting (SLM), the stress relief effects of TVSR and its influence on phase and microstructure were investigated and compared with thermal stress relief (TSR) and vibration stress relief (VSR), and the stress relief mechanisms of these methods are discussed. It was found that the residual stress relief rate can reach 86.76% after TVSR treatment at a temperature of 380 °C and a dynamic stress of 400 MPa, which increased by 63.63% compared with VSR under the same dynamic stress. The efficiency is increased by 76% compared with TSR at 580 °C and the residual stress relief rate is almost the same. After TVSR, VSR and TSR treatments, the grain morphology, size and phase content of samples were basically unchanged, and low-angle grain boundaries (LAGBs) were increased after TVSR and VSR treatments and decreased after TSR treatment. The results confirm that the TVSR method has the ability to control the residual stress of selective laser melted Ti6Al4V with low time and cost consumption, and are helpful for engineering applications of TVSR.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on Residual Stresses and Microstructures of Selective Laser Melted Ti6Al4V Treated by Thermal Vibration Stress Relief

Chen

Gao

et al. 2023

Micromachines

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“…Results showed that TSR reduced the peak residual stress more effectively, and the elimination effect of TVSR is more ideal under the resonance frequency and medium temperature. Wu et al [27] applied the method of TVSR to SiCP/Al composites material and expanded the scope of its application.…”

Section: Introductionmentioning

confidence: 99%

Effects of residual stress and equivalent bending stiffness on the dimensional stability of the thin-walled parts

Gao

Lin

et al. 2022

Int J Adv Manuf Technol

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The monolithic thin-walled parts are widely used in the aeronautic and astronautic field because of its excellent mechanical performance and light weight, but the thin-walled parts are vulnerable to the machining deformation due to its low stiffness and high material removal rate.According to the relative basic theory, the stiffness and internal residual stress of the part are the critical factors affecting the dimensional stability. In this work, the influences of equivalent bending stiffness and residual stress on the dimensional stability of thin-walled parts are studied.Nine typical thin-walled parts in three groups with two materials (7075 aluminum alloy for A1~A3 and B1~B3, and Ti6Al4V titanium alloy for B4~B6) are machined and treated with different processes. Topology optimization technique is used to optimize the structure of parts to enhance the bending stiffness. Corresponding finite element method (FEM) simulations are carried out to further investigate the generation mechanism. The deformations in 312 hours after machining are measured using coordinate measuring machine, and the deformation changes of the parts are obtained and analyzed. Finally, based on topological optimization and 2 stress relief technology, a machining deformation control method for the monolithic thin-walled parts is proposed. Results show that the maximum and average deformations of thin-walled are evidently decreased using the proposed method.

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Effect of Cryogenic Treatment on 7A09 Aluminum Alloy and Optimization of Process Parameters

Liu,

Chen,

Huang

et al. 2024

J. of Materi Eng and Perform

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Residual stress homogenization of SiCP/Al composites with thermal vibration coupling

Cited by 9 publications

References 31 publications

Research on Residual Stresses and Microstructures of Selective Laser Melted Ti6Al4V Treated by Thermal Vibration Stress Relief

Research on Residual Stresses and Microstructures of Selective Laser Melted Ti6Al4V Treated by Thermal Vibration Stress Relief

Effects of residual stress and equivalent bending stiffness on the dimensional stability of the thin-walled parts

Effect of Cryogenic Treatment on 7A09 Aluminum Alloy and Optimization of Process Parameters

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