Numerical modelling of shot peening process and corresponding products: Residual stress, surface roughness and cold work prediction

Mylonas, G.I.; Labeas, G.

doi:10.1016/j.surfcoat.2011.03.080

Cited by 148 publications

(61 citation statements)

References 30 publications

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“…While, the material hardening may lead to stress relaxation of compressive residual stress on one hand [15]; and on the other hand surface roughness, more exactly the height of the cavities caused by impacts has a potential to weaken the benefits of compressive residual stresses and cause corrosive cracks [18]. Further, the material hardening could be calculate by the measurement of the material plastic strain at the yield point of the material and the cold work could be calculate by the measurement of the plastic strain of the peened surface [19]. Therefore, the applicable objectives of the model should be: (1) maximisation of the compressive residual stresses, (2) minimisation of material hardening and (3) minimisation of surface roughness.…”

Section: Formulation Of Optimisationmentioning

confidence: 99%

Numerical Optimisation of Shot Peening Process on a Steam Turbine Blade

Chen¹,

Desai²,

Heyns³

et al. 2017

Proceedings of the 2017 6th International Conference on Measurement, Instrumentation and Automation (ICMIA 2017)

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Abstract. This article provides a broad and extensive literature survey on optimisation of shot peening process that have been developed and applied in the past decades and summarises the knowledge that has been gained and then points out the shortages of the important investigations in optimisation of shot peening process. On this basis, optimisation function is formulated and genetic algorithm is chosen to conduct the optimisation. This optimisation screens out the influential parameters and provides the weights of different parameters in terms of their influence of shot peening outputs.

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Section: Formulation Of Optimisationmentioning

confidence: 99%

Numerical Optimisation of Shot Peening Process on a Steam Turbine Blade

Chen¹,

Desai²,

Heyns³

et al. 2017

Proceedings of the 2017 6th International Conference on Measurement, Instrumentation and Automation (ICMIA 2017)

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“…Also other research from recent years [8,14,20], presents the results of the numerical FEM simulations of shot peening, including vibratory shot peening. In these works, the authors have focused primarily on the results obtained after shot peening, such as plastic deformations of workpieces, the theoretical amount of surface roughness after the strike with a strong of beads and residual stresses in the surface layer, without conducting the kinematic and dynamic analysis of the peening elements.…”

Section: The Numerical Fem Model Of the Kinematics Of The Vibratorymentioning

confidence: 99%

The Numerical FEM Model of the Kinematics of the Vibratory Shot Peening Process

Bławucki

Zaleski

2017

Adv. Sci. Technol. Res. J.

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ABSTRACT:The paper presents the results of numerical calculations, with the finite element method in the ABAQUS program environment, of the vibratory shot peening process with loose peening elements. The behaviour of shot peening elements was analysed in the kinematic aspect. The impact of the initial deployment of vibratory shot peening elements on their behaviour during processing was investigated, including the displacement, velocity, acceleration and the number of collisions. The way of determining the effectiveness of the processing with the vibratory shot peening was illustrated.

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“…18) Some cracks propagated into the material due to the stress concentration. Shot-peening treatment was used successfully to overcome the dangers of surface damage, 19) and used in thermal fatigue testing. It can be concluded that shot-peening treatment can provide excellent mechanical properties and produce good thermal fatigue resistance.…”

Section: Crack Length and Crack Densitymentioning

confidence: 99%

Thermal Fatigue Behavior Evaluation of Shot-Peened JIS SKD61 Hot-Work Mold Steel

et al. 2013

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Thermal fatigue cracking is one of the most important failure mechanisms in hot work die steels. Shot-peening can be used in a much wider field to obtain higher static strength, as well as better fatigue resistance. This study investigates the shot-peening effect on the microstructure and mechanical properties of hardened JIS SKD61 hot-work steel. The thermal fatigue test is based on cyclic induction heating and water cooling. A non-peened specimen with a hardness of 510 HV 0.05 was used as the reference material. The scanning electron microscopic observations showed craters on the surface and a severely worked hardened area in the shot-peened specimen subsurface. The microhardness values of the shotpeened surface are about 720 and 750 HV 0.05 for the Almen intensity of 15 A (typical shot-peened specimen) and 18 A (severe shot-peened specimen), respectively. The work hardening depths of typical shot-peened and severe shot-peened specimens are about 20 and 30 µm, respectively. The thermal fatigue properties of shot-peened specimens, including the mean crack length and crack distribution density, are better than those of non-peened specimens. Only a slight improvement in thermal fatigue properties occurred for the severe shot-peened specimen compared with typical shot-peened specimen.

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Numerical modelling of shot peening process and corresponding products: Residual stress, surface roughness and cold work prediction

Cited by 148 publications

References 30 publications

Numerical Optimisation of Shot Peening Process on a Steam Turbine Blade

Numerical Optimisation of Shot Peening Process on a Steam Turbine Blade

The Numerical FEM Model of the Kinematics of the Vibratory Shot Peening Process

Thermal Fatigue Behavior Evaluation of Shot-Peened JIS SKD61 Hot-Work Mold Steel

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