Kinematics Simulation Analysis of Shots in Shot Blasting Machine Based on EDEM

Hou, Lin; Yang, Li; Wang, Ying Zi; Wang, Shou Ren

doi:10.4028/www.scientific.net/amm.121-126.2071

Cited by 2 publications

(2 citation statements)

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“…Due to its advantages such as small pollution and high efficiency, it has gradually replaced other cleaning methods and has become an irreplaceable surface treatment method [1,2]. The process of shot blasting is essentially a process of particle flow acceleration and impact on the workpiece [3]. Therefore, studying the movement process of particle flow in the shot blaster plays an important role in improving the quality of shot blasting and reducing energy consumption.…”

Section: Introductionmentioning

confidence: 99%

Kinematics Simulation Analysis of Shot Blasting Projectile Based on EDEM

Yan¹,

Wang²,

Wen³

et al. 2018

dtetr

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In order to study the acceleration process of projectiles in the shot blaster, Discrete Element Method was used to establish the discrete element model of the shot blaster. With the help of the 3D discrete element software EDEM, this thesis points out the main factors that affecting the movement of projectiles by observing the movement of projectiles in the shot blaster. The results show that the movement of projectiles in the shot blaster can be divided into three phases: the gravity acceleration period, the rapidly acceleration period and the stable blasting period; the throwing velocity of projectiles are positively correlated with the pellet wheel rotating speed, the blade length and the projectile particle size, and are independent of the initial velocity; the initial velocity and the projectile particle size can effectively shorten the acceleration phase of projectiles, while the pellet wheel rotating speed and the blade length have no significant effect on every phase of projectiles acceleration.

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Section: Introductionmentioning

confidence: 99%

Kinematics Simulation Analysis of Shot Blasting Projectile Based on EDEM

Yan¹,

Wang²,

Wen³

et al. 2018

dtetr

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show abstract

“…Additionally, the combined effect of the initial velocity, mass flow rate, and pinning angle on the compressive residual stress was analyzed. Hou et al 20 analyzed the dynamic behavior of shot balls inside a shot-blasting machine using a 3D DEM. They observed that the faster the rotation speed of the impeller, the greater the rate of change in the speed of the shot ball.…”

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confidence: 99%

New design for control cage to enhance coverage and uniformity of shot blasting and its validation using DEM and experiment

Seo

Kim

Yang

et al. 2023

Sci Rep

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Unlike shot peening, shot blasting is a process that primarily uses shot balls to remove foreign substances from metal surfaces. Shot blasting is classified into air-blowing and impeller-impact types. The latter is widely used in commercial large-scale shot blasting. This study proposes a new control cage with a concave or convex shape to improve coverage and uniformity in the impeller-impact type shot blaster. The effectiveness of the proposed control cage is verified using discrete element methods and experiments. Moreover, the optimal design in terms of mass flow, coverage, and uniformity is confirmed. Additionally, the distribution of marks on the surface is analyzed through experiments and simulations. Further, the shot ball is projected over a wider area on the surface when the new concave and convex model is employed at the control cage. Consequently, we confirm that the control cage with a concave shape forms approximately a 5-% higher coverage than the conventional model and uniform shot marks while using a low mass flow rate.

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Kinematics Simulation Analysis of Shots in Shot Blasting Machine Based on EDEM

Cited by 2 publications

References 0 publications

Kinematics Simulation Analysis of Shot Blasting Projectile Based on EDEM

Kinematics Simulation Analysis of Shot Blasting Projectile Based on EDEM

New design for control cage to enhance coverage and uniformity of shot blasting and its validation using DEM and experiment

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