Improved Vibration Suppression Modeling for Reinforcement Clamping by Eco-friendly Magnetorheological Fluid During Milling of Annular Thin-Walled Workpiece

Jiang, Xiaohui; Wu, Kun; Zhang, Yong; He, Shanying

doi:10.1007/s40684-021-00409-5

Cited by 7 publications

(2 citation statements)

References 40 publications

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“…During the grinding process, amount of abrasive grits involved in the cutting motion simultaneously could help to remove extremely thin and fine chips, [27][28][29] which can effectively reduce machining defects and obtain better surface quality. However, the grinding mechanism for C f /SiC has not been fully investigated, resulting in unavoidable surface defects in grinding processed C f /SiC composites, which affects the quality and use of the components.…”

Section: Introductionmentioning

confidence: 99%

Single diamond grit scratching of unidirectional C_f/SiC composite: Mechanical responses and fracture mechanism

Wang

Wen

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part B:

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Cf/SiC composite is a typical heterogeneous brittle composite material, its precision machining has always been affected by the complicated removal mechanism. This paper conducted a single diamond grit scratching experiment on the unidirectional Cf/SiC composite to investigate the material’s mechanical response under different loads and scratching depths. The scratching force and acoustic emission signals were measured to reveal the removal characteristics. The scratching removal behavior of SiC matrix and carbon fibers in the two-phase component of unidirectional Cf/SiC composites was analyzed based on the fracture size and fiber fracture morphology. The results show that the parallel scratching process could produce a better strength resistance with mild rupture features of fiber extrusion fracture and shear removal. While the perpendicular scratching process is generally resulting in crack propagation along the fiber direction with interface failure and bending fracture failure along the moving direction.

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Section: Introductionmentioning

confidence: 99%

Single diamond grit scratching of unidirectional C_f/SiC composite: Mechanical responses and fracture mechanism

Wang

Wen

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…There are also methods available for the milling process system to absorb and damp vibrations by modifying the system damping mode. For instance, Jiang et al devises a kinetic model for MRF clamping grounded on fuel-solid coupling kinetic theory and puts forth an MRF composite fixture to diminish milling vibration [32]. Yuan et al suggests a method for suppressing forced vibration in thin-walled workpieces, where STF can effectively suppress the forced vibration effect during the milling process [33].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Chatter Stability for Milling Thin-Walled Blades by Designing Non-Uniform Allowance

Li,

Ding,

Tian

et al. 2023

Applied Sciences

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During the milling of thin-walled blades, the removal of material exhibits strong time-varying dynamics, leading to chatter and a decrease in surface quality. To address the issue of milling vibrations in the machining of complex thin-walled blades used in aerospace applications, this work proposes a process optimization approach involving non-uniform allowances. The objective is to enhance of he stiffness of the thin-walled parts during the milling process by establishing a non-uniform allowance distribution for the finishing process of thin-walled blades. By applying the theory of sensitive process stiffness and conducting finite element simulations, two processing strategies, namely uniform allowances and non-uniform allowances, are evaluated through cutting experiments. The experimental results demonstrate that the non-uniform allowance processing strategy leads to a more evenly distributed acceleration spectrum and a 50% reduction in amplitude. Moreover, the surface exhibits no discernible vibration pattern, resulting in a 35% decrease in roughness. The non-uniform allowance-processing strategy proves to be effective in significantly improving the rigidity of the thin-walled blade processing system, thereby enhancing the stability of the cutting process. These findings hold significant relevance in guiding the machining of typical complex thin-walled aerospace components.

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An improved dynamics modeling during milling of the thin-walled parts based on magnetorheological damping fixture

Jiang

Ning

Zhang

et al. 2022

Int J Adv Manuf Technol

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Aerospace thin-walled parts vibrates during the process of milling due to their characteristics of low rigidity, which influences the machining quality of the workpiece. Based on the characteristics of magnetorheological fluid excitation solidification, a magnetorheological damping fixture is designed to semi-actively suppress the vibration generated during the machining process. This paper simplifies the multi-characteristic structure of aerospace thin-walled parts into rectangular thin plates. In accordance with Kirchhoff G.'s small deflection bending theory of elastic thin-plates and Daramberg's principle, the differential equations for the transverse vibration of the thin-walled parts are established, which aims to obtain the natural frequency as well as vibration mode function of the thin-walled parts. In consideration of damping characteristics and the external dynamic milling force after the magnetorheological fluid excitation solidification, this paper uses the mode superposition method and an improved dynamic response mathematical model of the magnetorheological damping fixture thin-walled parts system of the linear multiple degrees of freedom, which has different volumes of magnetorheological fluids under forced vibration, was established. The maximum error between the predicted and measured values of the fixtureworkpiece system dynamic response of displacement and acceleration is 16.2% and 15.5%, respectively. Finally, this paper verifies the feasibility as well as the effectiveness of the model through dynamics experiment and milling machining experiment.

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Improved Vibration Suppression Modeling for Reinforcement Clamping by Eco-friendly Magnetorheological Fluid During Milling of Annular Thin-Walled Workpiece

Cited by 7 publications

References 40 publications

Single diamond grit scratching of unidirectional C_f/SiC composite: Mechanical responses and fracture mechanism

Single diamond grit scratching of unidirectional C_f/SiC composite: Mechanical responses and fracture mechanism

Enhancing Chatter Stability for Milling Thin-Walled Blades by Designing Non-Uniform Allowance

An improved dynamics modeling during milling of the thin-walled parts based on magnetorheological damping fixture

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Improved Vibration Suppression Modeling for Reinforcement Clamping by Eco-friendly Magnetorheological Fluid During Milling of Annular Thin-Walled Workpiece

Cited by 7 publications

References 40 publications

Single diamond grit scratching of unidirectional Cf/SiC composite: Mechanical responses and fracture mechanism

Single diamond grit scratching of unidirectional Cf/SiC composite: Mechanical responses and fracture mechanism

Enhancing Chatter Stability for Milling Thin-Walled Blades by Designing Non-Uniform Allowance

An improved dynamics modeling during milling of the thin-walled parts based on magnetorheological damping fixture

Contact Info

Product

Resources

About

Single diamond grit scratching of unidirectional C_f/SiC composite: Mechanical responses and fracture mechanism

Single diamond grit scratching of unidirectional C_f/SiC composite: Mechanical responses and fracture mechanism