scholarly journals The Effects of Shot Peening on the Surface Characteristics of 35NCD16 Alloy Steel

2020 ◽  
Vol 64 (3) ◽  
pp. 199-206
Author(s):  
Mohamed Benaissa ◽  
Fethi Benkhenafou ◽  
Abdelkader Ziadi ◽  
Luis Borja Peral Martinez ◽  
Francisco Javier Belzunce ◽  
...  
Keyword(s):  
Shot Peening ◽  
Mechanical Treatment ◽  
Surface Characteristics ◽  
Surface Finishing ◽  
Stress Profile ◽  
Cyclic Loads ◽  
Residual Stress Profile ◽  
Surface Work ◽  
Metallic Parts ◽  
Mechanical Surface

Shot-peening is a surface mechanical treatment, widely used to treat metallic parts in the aerospace and automotive industries. This mechanical surface treatment should not be confused with other common applications of other peening treatments, oriented towards cleaning, preparation or surface finishing. Shot peening is a mechanical treatment used to improve the service life of metallic components, especially when they are submitted to cyclic loads. The effect of shot peening on the surface work hardening and residual stress profile of a 35NCD16 steel was studied in this work.

scholarly journals Optimal shot peening residual stress profile for fatigue

2021 ◽  
pp. 103109
Author(s):  
S. Aguado-Montero ◽  
J. Vázquez ◽  
C. Navarro ◽  
J. Domínguez
Keyword(s):  
Residual Stress ◽  
Shot Peening ◽  
Stress Profile ◽  
Residual Stress Profile

Finite Element Simulation of the Residual Stress States after Shot Peening

2006 ◽  
Vol 524-525 ◽  
pp. 349-354 ◽  
Author(s):  
Manuel Klemenz ◽  
Volker Schulze ◽  
Otmar Vöhringer ◽  
Detlef Löhe
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Finite Element Simulation ◽  
Shot Peening ◽  
Three Dimensional ◽  
Material Model ◽  
Stress Profile ◽  
Viscoplastic Material ◽  
Residual Stress Profile ◽  
Element Simulation

In a three-dimensional Finite-Element-Simulation of shot peening, a combined isotropickinematic viscoplastic material description was introduced in order to describe the cyclic softening effects during peening. After verifying the model in the simulation of push-pull tests at different strain amplitudes it could be used for the shot peening simulation. The simulated residual stress profile is compared with experimental results determined by X-ray diffraction and with simulated results of a simpler isotropic viscoplastic material model.

Shot peening coverage effect on residual stress profile by FE random impact analysis

2016 ◽  
Vol 32 (11) ◽  
pp. 861-870 ◽  
Author(s):  
A. Ghasemi ◽  
S. M. Hassani-Gangaraj ◽  
A. H. Mahmoudi ◽  
G. H. Farrahi ◽  
M. Guagliano
Keyword(s):  
Residual Stress ◽  
Shot Peening ◽  
Impact Analysis ◽  
Stress Profile ◽  
Residual Stress Profile

Empirical modeling of compressive residual stress profile in shot peening TC17 alloy using characteristic parameters and sinusoidal decay function

2016 ◽  
Vol 232 (5) ◽  
pp. 855-866 ◽  
Author(s):  
Liang Tan ◽  
Changfeng Yao ◽  
Dinghua Zhang ◽  
Junxue Ren
Keyword(s):  
Residual Stress ◽  
Shot Peening ◽  
Compressive Residual Stress ◽  
Empirical Modeling ◽  
Stress Profile ◽  
Characteristic Parameters ◽  
Decay Function ◽  
Function Model ◽  
Residual Stress Profile ◽  
Decay Function Model

This article introduces two comprehensive experimental models to predict the compressive residual stress profile induced in TC17 alloy after shot peening. Experiments are carried out utilizing one of experimental design techniques based on response surface methodology. Shot peening intensity and coverage are considered as two input parameters affecting compressive residual stress profile. The characteristic parameters model is created by regression analysis, which has the capability of predicting the four main characteristic parameters of a typical compressive residual stress profile. Based on this model, the absolute sensitivity of characteristic parameters with respect to shot peening intensity and coverage is analyzed. The sinusoidal decay function model is created with a proposition of that the compressive residual stress profile is a sinusoidal decay function of the depth beneath surface and the coefficients of this function are, in turn, functions of the two input shot peening parameters. The main advantage of sinusoidal decay function model over characteristic parameters model is that it provides the effect of shot peening parameters on the shape of the compressive residual stress profile. The two models have been checked for accuracy by two extra tests. The results show that the prediction errors of the four main characteristic parameters are within 20%, and the compressive residual stress profiles predicted by the sinusoidal decay function model are in consistent with experimental data.

Comparison between conventional shot peening and ultrasonic shot peening

2018 ◽  
Vol 19 (6) ◽  
pp. 603
Author(s):  
Sondes Manchoul ◽  
Rabi Ben Sghaier ◽  
Rawdha Seddik ◽  
Raouf Fathallah
Keyword(s):  
Residual Stresses ◽  
Shot Peening ◽  
Treatment Process ◽  
Three Dimensional ◽  
Surface Characteristics ◽  
Aisi 316L ◽  
Plastic Deformations ◽  
Ultrasonic Shot Peening ◽  
Three Dimensional Models ◽  
Mechanical Surface

Shot peening process is a mechanical surface treatment process widely used in the industry. Ultrasonic shot peening and conventional shot peening are two important mechanisms of this process. This work aims at studying and comparing the influence of conventional shot peening and ultrasonic shot peening on the surface characteristics (residual stresses, equivalent plastic deformations, and roughness). Three-dimensional models are established to simulate the two mechanisms by using the finite elements software ABAQUS/PYTHON. The residual stresses distributions, as well as the roughness and the equivalent plastic deformations of the AISI 2205 and the AISI 316L induced by both models, are predicted and compared.

Influence of Shot Peening Parameters on Process Effectiveness

2012 ◽  
Author(s):  
Abdalla Elbella ◽  
Fawaz Fadul ◽  
Sri Harsha Uddanda ◽  
Nagender Reddy Kasarla
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Process Parameters ◽  
Shot Peening ◽  
Incidence Angle ◽  
Target Material ◽  
Stress Profile ◽  
Surface Strength ◽  
Residual Stress Profile ◽  
The Impact

The shot peening process is known for the surface treatment of metallic components. The process is used to enhance surface strength and extend component fatigue life by introducing a compressive residual stress pattern in the surface layers of the component. Numerical simulation of the shot peening process is a tool that has been recently used to help control the process. The simulation helps in investigating the effects of the process parameters with an aim of attaining the optimum residual stress profile and maximum process gain. In this paper, elasto-plastic finite element simulation is used to perform this investigative analysis. The process parameters that are varied in this analysis are: the shot diameter, shot velocity, incidence angle and target material. The analysis is to be carried for three different materials, namely, steel, aluminum and titanium. An Explicit commercial finite element code (ABAQUS) is used to simulate the impact phenomenon. The results of the analysis are sets of varying plots of residual stress through the depth of the targets.

A Sensitivity Analysis of Shot Peening Parameters

2006 ◽  
Author(s):  
Abdalla Elbella ◽  
Vishal Rami ◽  
Jyothi Hogirala
Keyword(s):  
Residual Stress ◽  
Finite Element ◽  
Process Parameters ◽  
Shot Peening ◽  
Target Material ◽  
Element Model ◽  
Stress Profile ◽  
Explicit Finite Element ◽  
Residual Stress Profile ◽  
Subsurface Layers

Shot peening process is largely used for surface treatment of metallic components with the aim of increasing surface toughness and extending fatigue life. The fatigue strength of the component can be improved by inducing compressive residual stress in the surface and subsurface layers by the shot peening process. Numerical simulation of the shot peening process is an important tool that is used to aid in understanding the effects of the process parameters on intended goal of attaining the optimum residual stress profile and maximum process gain. In this paper an elasto-plastic finite element model is used for the shot peening process. The process parameters that are varied in this analysis are: the shot diameter, shot speed, number of shots at a given time (coverage) and target material. The analysis is carried out for two different materials, namely, steel and aluminum. An Explicit finite element code (ABAQUS) is used to perform this task. These parameters have different effects on the resulting residual profile and the results of the study showed that by adjusting these parameters, the most effective residual stress profile could be obtained.

Surface Modification Analysis after Shot Peening of AA 7075 in Different States

2013 ◽  
Vol 768-769 ◽  
pp. 519-525 ◽  
Author(s):  
Sebastjan Žagar ◽  
Janez Grum
Keyword(s):  
Residual Stress ◽  
Surface Layer ◽  
Residual Stresses ◽  
Aluminium Alloy ◽  
Shot Peening ◽  
Fatigue Testing ◽  
Stress Profile ◽  
Treatment Conditions ◽  
Stress Profiles ◽  
Compressive Residual Stresses

The paper deals with the effect of different shot peening (SP) treatment conditions on the ENAW 7075-T651 aluminium alloy. Suitable residual stress profile increases the applicability and life cycle of mechanical parts, treated by shot peening. The objective of the research was to establish the optimal parameters of the shot peening treatment of the aluminium alloy in different precipitation hardened states with regard to residual stress profiles in dynamic loading. Main deformations and main residual stresses were calculated on the basis of electrical resistance. The resulting residual stress profiles reveal that stresses throughout the thin surface layer of all shot peened specimens are of compressive nature. The differences can be observed in the depth of shot peening and the profile of compressive residual stresses. Under all treatment conditions, the obtained maximum value of compressive residual stress ranges between -200 MPa and -300 MPa at a depth between 250 μm and 300 μm. Comparison of different temperature-hardened aluminium alloys shows that changes in the Almen intensity values have greater effect than coverage in the depth and profile of compressive residual stresses. Positive stress ratio of R=0.1 was selected. Wöhler curves were determined in the areas of maximum bending loads between 30 - 65 % of material's tensile strength, measured at thinner cross-sections of individual specimens. The results of material fatigue testing differ from the level of shot peening on the surface layer.

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