A new methodology to establish the relationship between equivalent shot velocity and air pressure by surface roughness for shot peening

Wang, Chengyu; Weigang, Li; Jiang, Jianjun; Xin, Chao; Zeng, Weikui; Yang, Jie

doi:10.1007/s00170-020-06423-2

Cited by 9 publications

(11 citation statements)

References 29 publications

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“…The surface roughness results and the distribution trend of R a found in this study were consistent with those on another method that were reported in the literature. 30 …”

Section: Discussionmentioning

confidence: 99%

“…In the current study, the indirect measurement strategy reported by Wang et al 33 was applied to obtain the shot velocity by the intermediate Almen intensity test. Figure 2 displays the implementation of this robust shot velocity measurement method.…”

Section: Current Approach For Shot Velocity Measurementsmentioning

confidence: 99%

“…All side faces of the target mesh are surrounded by so-called half-infinite elements that prevent the reflection of elastic shear waves. 37 , 38 The mesh size of the target is set similar to those used by Jebahi et al 19 and Wang et al 30 A robust DEM–FEM coupled model was used, which takes the shot–shot collisions and impingement angles into account.…”

Section: Current Approach For Shot Velocity Measurementsmentioning

confidence: 99%

“…It is impossible to obtain the real velocity distribution of every shot involved by the existing measurement methods. Therefore, Jebahi et al 19 and Wang et al 30 proposed equivalent shot velocity, in which each shot involved in the shot peening process has the same initial velocity, instead of the actual velocity distribution of all shots involved in the actual process.…”

Section: Introductionmentioning

confidence: 99%

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Study on the Measurement Method of Shot Velocity and Mechanical Properties Based on Conventional Shot Peening

et al. 2022

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Shot velocity is a crucial control parameter that is closely related to the shot peening effect. However, the traditional measurement method of shot velocity corresponding to air pressure is complicated and cannot reflect shot peening parameters (impingement angle, etc.). This study proposes a robust method to measure shot velocity by coupling simulations and experiments. By developing the measurement method presented in this paper, we can quickly and easily derive the linear shot velocity formulas corresponding to a series of impingement angles. The validity is verified and characterized by the arc height, surface roughness, residual stresses, and existing literature. The measured shot velocity can be applied to predict the effect of shot peening by the simulation method in aerospace and automotive industries. In addition, optimization of process parameters in terms of microstructure, microhardness, and mechanical properties is discussed in the context of experiments. This study shows that shot velocity is linearly related to shot peening pressure and is affected by impingement angles. The air pressure and exposure time should not be too large, and no microcracks should be created. The ultimate strength reaches the maximum, and the yield strength is significantly improved.

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“…The surface roughness results and the distribution trend of R a found in this study were consistent with those on another method that were reported in the literature. 30 …”

Section: Discussionmentioning

confidence: 99%

Section: Current Approach For Shot Velocity Measurementsmentioning

confidence: 99%

Section: Current Approach For Shot Velocity Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study on the Measurement Method of Shot Velocity and Mechanical Properties Based on Conventional Shot Peening

et al. 2022

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“…Likewise, in the case of shot peening, most studies have based their comparison on the frequently used parameters of Ra and Rz, even if surfaces with similar values of this latter can exhibit quite different behavior due to a different overall surface features arrangement and a different texture. Numerous studies [40][41][42][43][44][45] have been performed on the numerical investigation of surface roughness prediction induced by peening, taking for granted the validity of the standard roughness parameters.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Homogeneity of Surface Features Induced by Impact-Based Surface Treatments

et al. 2021

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Impact surface treatments are well-known for their efficiency in enhancing the mechanical properties of metallic materials, especially under cyclic loadings. These processes, which encompass a wide range of surface treatments based on repetitive impacts of tools of various types, induce surface plastic deformation, compressive residual stresses, and grain refinement alter the surface roughness as a side effect. Thus, it is essential to have suitable indexes to quantify the surface features caused by the typically random nature of these treatments. Herein, we evaluated the rationality of using standard roughness parameters for describing the morphological characteristics of surfaces treated by shot peening as a representative and widely used treatment of the category. A detailed numerical model of the peening process was developed. The output data were elaborated to extract the surface roughness parameters following the standard procedures. The results revealed the validity of the surface roughness parameters to describe the topography of material treated with adequate surface coverage, also highlighting the necessity to use a set of parameters rather than the common practice of relying on single parameters. Not considering a comprehensive set of amplitude and spacing parameters can result in significant, inconsistent, and misleading results while comparing the performance of surfaces.

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New Electronic Peening Intensity Sensor: Effect of Impingement Angle

Forgues,

Labelle,

Alouani

et al. 2024

Lecture Notes in Mechanical Engineering

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A new methodology to establish the relationship between equivalent shot velocity and air pressure by surface roughness for shot peening

Cited by 9 publications

References 29 publications

Study on the Measurement Method of Shot Velocity and Mechanical Properties Based on Conventional Shot Peening

Study on the Measurement Method of Shot Velocity and Mechanical Properties Based on Conventional Shot Peening

Evaluating the Homogeneity of Surface Features Induced by Impact-Based Surface Treatments

New Electronic Peening Intensity Sensor: Effect of Impingement Angle

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