Investigation into a geometry-based model for surface roughness prediction in vibratory finishing processes

Uhlmann, Eckart; Dethlefs, Arne; Eulitz, Alexander

doi:10.1007/s00170-014-6194-8

Cited by 30 publications

(13 citation statements)

References 14 publications

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“…The transversal impact generally favors the mechanical attrition of the surface deviations, and the normal impact results in the transferring of compressive stresses on the surface due to the plastic deformation. As a result, the post-processing using the VSF process significantly enhances the surface characteristics by reducing the surface roughness and improving the mechanical strength [12]. In this study, both cubical and tension test specimens were subjected to different VSF treatment duration for surface integrity enhancement.…”

Section: Introductionmentioning

confidence: 99%

Improving the surface quality and mechanical properties of selective laser sintered PA2200 components by the vibratory surface finishing process

et al. 2021

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This paper attempts to improve the physical and mechanical properties of selective laser sintered polyamide PA2200 components through a vibratory surface finishing process by inducing severe plastic deformation at the outer surface layers. The industrial target of additive manufacturing components is to obtain structures having surface roughness, hardness, and other mechanical properties equivalent to or better than those produced conventionally. Compared to the as-built SLS PA2200 samples, vibratory surface finishing treated specimens exhibited a smooth surface microstructure and more favorable roughness, hardness, and tensile strength. Also, the duration of the vibratory surface finishing process showed a further improvement in the surface roughness and hardness of the SLS samples. Compared to the as-built state, the roughness and hardness of the surface-treated samples improved by almost 90% and 15%, respectively. Consequently, microstructural analysis indicates that lower surface roughness and enhanced surface hardness is a crucial factor in influencing the overall tensile strength of SLS-PA2200 components. We consider that the combination of VSF and SLS processes can successfully handle a wide range of potential applications. This study also highlights the efficiency and applicability of the vibratory surface finishing process to other additive manufacturing processes and materials. Graphic abstract

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Section: Introductionmentioning

confidence: 99%

Improving the surface quality and mechanical properties of selective laser sintered PA2200 components by the vibratory surface finishing process

et al. 2021

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“…Robot-guided drag finishing using an industrial six-axis robot was developed, in which the workpieces are guided through the resting or vibrating abrasive. This method may improve the reachability of the abrasives [43,44].…”

Section: Vibratory Finishing and Drag Finishingmentioning

confidence: 97%

Machining the Integral Impeller and Blisk of Aero-Engines: A Review of Surface Finishing and Strengthening Technologies

Gao

Wang

et al. 2017

Chin. J. Mech. Eng.

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The integral impeller and blisk of an aero-engine are high performance parts with complex structure and made of difficult-to-cut materials. The blade surfaces of the integral impeller and blisk are functional surfaces for power transmission, and their surface integrity has significant effects on the aerodynamic efficiency and service life of an aero-engine. Thus, it is indispensable to finish and strengthen the blades before use. This paper presents a comprehensive literature review of studies on finishing and strengthening technologies for the impeller and blisk of aero-engines. The review includes independent and integrated finishing and strengthening technologies and discusses advanced rotational abrasive flow machining with back-pressure used for finishing the integral impeller and blisk. A brief assessment of future research problems and directions is also presented.

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“…Hashimoto (1995) developed a simple, empirically-based model of the early transient and long-time-scale steady material removal periods that characterize vibratory finishing processes. Focusing on localized surface features, and the rate at which material is removed from these features, Uhlmann et al (2014) developed a model that predicts the time required to obtain specific surface finishes. Naeini and Spelt (2009) used the discrete element method (DEM) to model media flow within a modified vibratory system, while Domblesky et al (2004), considering the cutting action of media, developed a material removal model, applicable to the long-time-scale period of slow, nominally steady mass removal.…”

Section: Introductionmentioning

confidence: 99%

Application of particle image velocimetry (PIV) to vibrational finishing

Fleischhauer

Azimi

Tkacik

et al. 2016

Journal of Materials Processing Technology

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Investigation into a geometry-based model for surface roughness prediction in vibratory finishing processes

Cited by 30 publications

References 14 publications

Improving the surface quality and mechanical properties of selective laser sintered PA2200 components by the vibratory surface finishing process

Improving the surface quality and mechanical properties of selective laser sintered PA2200 components by the vibratory surface finishing process

Machining the Integral Impeller and Blisk of Aero-Engines: A Review of Surface Finishing and Strengthening Technologies

Application of particle image velocimetry (PIV) to vibrational finishing

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