Surface Roughness Investigation and Stress Modeling by Finite Element on Orthogonal Cutting of Copper

Zein, Hussein; Irfan, Osama M.

doi:10.3390/met8060418

Cited by 10 publications

(6 citation statements)

References 32 publications

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“…where qp is the heat generation rate and η p is the inelastic heat fraction taken as 0.9 in this study [63]. The heat generated by friction can be evaluated as [65]:…”

Section: Friction and Heat Generation Modelmentioning

confidence: 99%

Cutting mechanics and efficiency of forward and reverse multidirectional turning

Cai

Zhang

et al. 2023

International Journal of Mechanical Sciences

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“…where qp is the heat generation rate and η p is the inelastic heat fraction taken as 0.9 in this study [63]. The heat generated by friction can be evaluated as [65]:…”

Section: Friction and Heat Generation Modelmentioning

confidence: 99%

Cutting mechanics and efficiency of forward and reverse multidirectional turning

Cai

Zhang

et al. 2023

International Journal of Mechanical Sciences

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“…The Johnson-Cook model is a phenomenological model for materials subjected to large strains, high strain rates and high temperatures. The flow stress of this particular type of Mises plasticity model is expressed as [14]:…”

Section: Finite Element Simulation Proceduresmentioning

confidence: 99%

Experimental and numerical investigation of severe plastic deformation of copper sheets processed by modified-constrained studded pressing

Kaykha

Dashtbayazi

2022

Mater. Res. Express

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In this study, mechanical behavior and microstructural evolution of copper sheets, produced by modified-constrained studded pressing (modified-CSP) as a severe plastic deformation (SPD) method, were investigated by experimental and numerical methods. A finite element model (FEM) was established to analyze distribution of equivalent plastic strain and residual stress for the complete first pass of the process. Local stress concentration was predicted by FEM. Also, copper sheets were deformed by the modified-CSP from the first to the tenth passes. The distribution of residual stress on the surface of the copper sheets was measured at each step of the process. Crack initiation and propagation were investigated by the non-destructive penetration test (PT). The residual stresses were predicted by X-ray diffraction (XRD) pattern analysis. The residual stresses were determined for the annealed and the first pass samples, +128.2 and +80.4 MPa, respectively. The maximum compression residual stress was -62.5 MPa for the tenth pass sample. The microstructural evolution including grain size and dislocation density of samples during the process were investigated. The average grain size had a significant decrease from ~35 μm to ~76 nm for annealed sample and tenth pass of modified-CSP, respectively.

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“…Shalaby et al 18 proposed a mechanistic model based on Merchant’s analysis. Zein and Irfan 19 developed a analytical model for surface roughness and investigated the effect of cutting parameters in orthogonal experiments. Marques et al 20 revealed experimentally that the surface roughness is in reduction trend with increasing cutting speed.…”

Section: Introductionmentioning

confidence: 99%

The cutting vibration and surface information in whirlwind milling a large screw

Guo

Wang

2022

Advances in Mechanical Engineering

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The whirlwind milling (WM) technology is a competitive machining method, especially for large screws. A rotating large screw subjected to a rotating and moving WM cutting force has complex dynamics and formation. In the study, the WM cutting forces in radial, tangential, and axial directions were firstly acquired using a self-developed testing system. Then, the cutting vibration was modeled in consideration of the WM unique constraint, and the deflections in different directions were analyzed in detail. Lastly, the surface topography and roughness under cutting were geometrically modeled by superimposing the radial deflection on the static forming surface. Compared to single-factor experiments, the results demonstrated the consistency between surface roughness and experimental data. Therefore, the established vibration and surface roughness models are reasonable and effective for predicting, and thus favorable and beneficial for the optimization in whirlwind milling a large screw.

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Surface Roughness Investigation and Stress Modeling by Finite Element on Orthogonal Cutting of Copper

Cited by 10 publications

References 32 publications

Cutting mechanics and efficiency of forward and reverse multidirectional turning

Cutting mechanics and efficiency of forward and reverse multidirectional turning

Experimental and numerical investigation of severe plastic deformation of copper sheets processed by modified-constrained studded pressing

The cutting vibration and surface information in whirlwind milling a large screw

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