Thin floor milling using moving support

Fei, Jixiong; Lin, Bin; Huang, Tian; Xiao, Juliang

doi:10.1007/s00170-022-08814-z

Cited by 6 publications

(3 citation statements)

References 28 publications

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“…The traditional machining methods used in the production of such parts are inefficient and do not allow the obtaining of the required shape, dimensional accuracy, and surface quality [ 14 , 15 , 16 , 17 ]. The conventional approach is to use multi-pass machining with reduced values of cutting parameters, rests, and additional uneconomic and inefficient-lapping operations [ 18 , 19 , 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Compliance of a Technological System on the Machining Accuracy of Low-Stiffness Shafts in the Grinding Process

Świć

Gola

2023

Materials

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This paper reports the results of research on the influence of the compliance of the technological system used in grinding low-stiffness shafts on the shape accuracy of the workpieces. The level of accuracy achieved using passive compliance compensation was assessed, and technological assumptions were formulated to further increase the shape accuracy of the low-stiffness shafts obtained in the grinding process. Taking into account the limitations of passive compliance compensation, a method for the active compensation of the compliance of the elastic technological system during the machining process was developed. The experiments showed that the accuracy of grinding was most effectively increased by adjusting the compliance and controlling the bending moments, depending on the position of the cutting force (grinding wheel) along the part. The experimental results were largely consistent with the results of the theoretical study and confirmed the assumptions made. Adjusting the compliance in the proposed way allows for the significant improvement in the accuracy and productivity of machining of low-stiffness shafts.

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Section: Introductionmentioning

confidence: 99%

Influence of the Compliance of a Technological System on the Machining Accuracy of Low-Stiffness Shafts in the Grinding Process

Świć

Gola

2023

Materials

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“…The quality of the machining of the parts on metal cutting machines can be significantly increased as a result of the application of the developed technological machining methods, enabling the adjustment of the susceptibility of the technological system and appropriate control systems of the machine’s tools and parameters of the technological system [ 21 ]. It is especially important for machining parts with low stiffness when it is necessary to ensure their appropriate stiffness to enable efficient machining [ 22 ]. The accuracy and quality of machining may be increased as a result of the development and application of appropriate (close to optimal) structures of the control systems [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Technological Methods for Controlling the Elastic-Deformable State in Turning and Grinding Shafts of Low Stiffness

et al. 2022

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The article presents original technological methods that allow the improvement of the accuracy of the turning and grinding of elastic-deformable shafts by increasing their stiffness by controlling the state of elastic deformations. In particular, the adaptive control algorithm of the machining process that allows the elimination of the influence of the cutting force vibration and compensates for the bending vibrations is proposed. Moreover, a novel technological system, equipped with the mechanism enabling the regulation of the stiffness and dedicated software, is presented. The conducted experimental studies of the proposed methods show that, in comparison with the passive compliance equalization, the linearization control ensures a two-fold increase in the shape accuracy. Compared to the uncontrolled grinding process of shafts with low stiffness, the programmable compliance control increases the accuracy of the shape by four times. A further increase in the accuracy of the shape while automating the processes of abrasive machining is associated with the proposed adaptive control algorithm. Moreover, the initial experiments with the adaptive devices prove that it is possible to reduce the longitudinal shape inaccuracy even by seven times.

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“…Hassan et al (2018) investigated the effects of a strong oscillating magnetic flux and a large concentration of nanoparticles on physical characteristics as well as energy and mass transport. Many researchers have recently reported on the study of non-coaxial motion of discs and fluids (Ali et al, 2020;Ali et al, 2022;Fei et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Mathematical analysis of casson fluid flow with energy and mass transfer under the influence of activation energy from a non-coaxially spinning disc

Alqarni

Bilal²,

Allogmany³

et al. 2022

Front. Energy Res.

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A Casson fluid is the most suitable rheological model for blood and other non-Newtonian fluids. Casson fluids hold yield-stress and have great significance in biomechanics and polymer industries. In this analysis, a numerical simulation of non-coaxial rotation of a Casson fluid over a circular disc was estimated. The influence of thermal radiation, second-order chemical reactions, buoyancy, and heat source on a Casson fluid above a rotating frame was studied. The time evolution of secondary and primary velocities, solute particles, and energy contours were also examined. A magnetic flux of varying intensity was applied to the fluid flow. A nonlinear sequence of partial differential equations was used to describe the phenomenon. The modeled equations were reduced to a non-dimensional set of ordinary differential equations (ODEs) using similarity replacement. The obtained sets of ODEs were further simulated using the parametric continuation method (PCM). The impact of physical constraints on energy, concentration, and velocity profiles are presented through figures and tables. It should be noted that the effect of the Casson fluid coefficient, the Grashof number, and the magnetic field reduces the fluid’s primary velocity contour. The mass transfer field decreases with the action of constructive chemical reactions, but is augmented by the effects of destructive chemical reactions. The accelerating trend in Schmidt number lowers the mass profile, while it is enhanced by increasing values of activation energy and Soret number.

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Thin floor milling using moving support

Cited by 6 publications

References 28 publications

Influence of the Compliance of a Technological System on the Machining Accuracy of Low-Stiffness Shafts in the Grinding Process

Influence of the Compliance of a Technological System on the Machining Accuracy of Low-Stiffness Shafts in the Grinding Process

Technological Methods for Controlling the Elastic-Deformable State in Turning and Grinding Shafts of Low Stiffness

Mathematical analysis of casson fluid flow with energy and mass transfer under the influence of activation energy from a non-coaxially spinning disc

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