Experimental study of shot peening and stress peen forming

Miao, Hengfeng; Demers, Denis; Larose, Simon; Perron, C.; Lévesque, Martin

doi:10.1016/j.jmatprotec.2010.07.016

Cited by 181 publications

(82 citation statements)

References 9 publications

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“…The wear resistance and fatigue performance are two of major concerns in those applications [2]. For conventional engineering alloys such as stainless steels and titanium alloys, several surface treatment techniques such as shot peening have been widely used to improve those two properties in metallic components of bulk materials [3][4][5]. For SMAs, besides the improvement of wear and fatigue performance, the shape memory characteristics of the materials often require being preserved in their applications.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical properties of an austenite NiTi shape memory alloy treated with laser induced shock

Wang

Xia

et al. 2013

Materials Science and Engineering: A

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a b s t r a c tIn this study, microstructure and mechanical properties of an austenite NiTi alloy treated with laser shock peening (LSP) was investigated. It was found that the thickness of shock affected layer is about 250-300 μm. The surface hardness of the specimen is increased by approximately 10% after LSP. Laser induced shock introduces slightly residual compressive stress in the peened specimen. The superleastic stress-strain curves of the fully LSP processed NiTi material show no change in phase transition stress, about 100 MPa decrease in martensite yield stress, and a loss of maximum transition strain about 12% after LSP. The ultrahigh-strain-rate plastic deformation by LSP results in dislocation substructure and amorphization underneath the surface which are responsible for the hardness increase and superelastic strain loss.

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Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical properties of an austenite NiTi shape memory alloy treated with laser induced shock

Wang

Xia

et al. 2013

Materials Science and Engineering: A

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“…methods by generating compressive residual stress near the surface of metallic material to increase fatigue life and resistance to corrosion fatigue, cracking, etc [1][2][3][4][5]. It has been widely used in many manufacturing sectors like the aerospace and automobile industries to improve the reliability of structures [6,7].…”

Section: Shot Peening (Sp) Is One Of the Effective Surface Treatmentmentioning

confidence: 99%

“…In recent years, many analytical and numerical models, with which the residual stress, the surface integrity and the influence of parameters can be predicted, have been applied to analyze the SP process to take advantage of advancements in computer technology [5,6,[8][9][10][11][12][13][14][15]. The effects of some SP parameters have been investigated [2,[16][17][18][19][20][21], however, little research has focused on systematic analysis of dimensionless parameters in SP process, which is important for clarifying the influence of process conditions. Kelmenz et al [14] studied the residual stress state after shot peening with dimensional analysis method and finite element method (FEM) simulation, and the effects of four dimensionless input values were investigated.…”

Section: Shot Peening (Sp) Is One Of the Effective Surface Treatmentmentioning

confidence: 99%

Parametric study on single shot peening by dimensional analysis method incorporated with finite element method

Wang

Yan

et al. 2012

Acta Mech Sin

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Shot peening is a widely used surface treatment method by generating compressive residual stress near the surface of metallic materials to increase fatigue life and resistance to corrosion fatigue, cracking, etc. Compressive residual stress and dent profile are important factors to evaluate the effectiveness of shot peening process. In this paper, the influence of dimensionless parameters on maximum compressive residual stress and maximum depth of the dent were investigated. Firstly, dimensionless relations of processing parameters that affect the maximum compressive residual stress and the maximum depth of the dent were deduced by dimensional analysis method. Secondly, the influence of each dimensionless parameter on dimensionless variables was investigated by the finite element method. Furthermore, related empirical formulas were given for each dimensionless parameter based on the simulation results. Finally, comparison was made and good agreement was found between the simulation results and the empirical formula, which shows that a useful approach is provided in this paper for analyzing the influence of each individual parameter.

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“…Conventional plastic-forming processes for the stiffened panels, pointed by the "Integral Airframe Structures (IAS)" program [1,2], include shot peen forming, brake forming, creep age forming and roll forming, etc. Generally, during the shot peening process, complex experience-based process design and additional prestress treatment [3,4] limit the application of this technology in manufacturing stiffened panels, especially the panels with complicated structure, such as grid-stiffened panels. Creep age forming is only applicable for certain alloys or tempers which have the features of age-hardening or stress relaxation.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Forming Rules of a Stiffened Panel with Grid Ribs

Tan

Zhan

Gao

et al. 2017

Metals

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Electromagnetic forming (EMF), a technology with advantages of contact-free force and high energy density, generally aims at forming parts by using a fixed coil and one-time discharge. In this study, multi-stage EMF is introduced to form a panel with stiffened grid ribs. The forming rules of the stiffened panel is revealed via analyzing the distribution and evolution of the simulated stress and strain in the ribs and web, where the grid-rib panels were decomposed as the flat panel and two panels with uni-directional ribs (ribs only in X direction or Y direction). It is shown that the forming depth is mainly attributed to the forces on the web, although electromagnetic force is applied on both the ribs and the web, especially, large force on the ribs. The ribs are subjected to uniaxial stress parallel to their directions, and the web is subjected to plane stress in the deformation region. Furthermore, the change of the uniaxial stress characteristic in the X-direction ribs is influenced by the electromagnetic force, reverse bend and inertial effect. The plastic deformation mainly occurs in the Y-direction ribs of the deformation region under a three-direction strain state.

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Experimental study of shot peening and stress peen forming

Cited by 181 publications

References 9 publications

Microstructure and mechanical properties of an austenite NiTi shape memory alloy treated with laser induced shock

Microstructure and mechanical properties of an austenite NiTi shape memory alloy treated with laser induced shock

Parametric study on single shot peening by dimensional analysis method incorporated with finite element method

Electromagnetic Forming Rules of a Stiffened Panel with Grid Ribs

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