Investigation on the influence of material crystallographic orientation on grinding force in the micro-grinding of single-crystal copper with single grit

Zhao, Man; Ji, Xia; Li, Beizhi; Liang, Steven Y.

doi:10.1007/s00170-016-9605-1

Cited by 14 publications

(9 citation statements)

References 19 publications

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“…Therefore, the chip formation and plowing forces of the single grit in the tangential and normal directions can be obtained by the model proposed in reference [23]. The rubbing force of single grit is calculated using equation (7).…”

Section: Calculated and Experimental Resultsmentioning

confidence: 99%

“…The authors concluded that the minimum uncut chip thickness is relatively small and the surface quality is better in the specific cutting direction. Cutting forces, chip morphology, shear stresses, shear angle, and effective coefficient of friction were seen to vary with CO. To investigate the effect of CO on micro-cutting force, Zhao et al [23] presented a Taylor factor model to quantify the CO of cutting plane in the micro-cutting of monocrystalline material with a single grit. However, the cutting direction with respected to the CO is not considered in the Taylor factor model.…”

Section: Introductionmentioning

confidence: 99%

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Forces prediction in micro-grinding single-crystal copper considering the crystallographic orientation

Zhao

et al. 2018

Manufacturing Rev.

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In the micro-grinding of single-crystal copper, the effect of crystallography becomes significant as the wheel works intra-crystalline. To quantify the effect of crystallographic orientation (CO) related to the cutting direction on the micro-grinding process, this article presents a Taylor factor model by examining the number and style of activated slip systems. Then, the flow stress model of monocrystalline material is developed considering the variation of the Taylor factor. Furthermore, the models of chip formation and rubbing forces are derived from the flow stress model, while the plowing force is predicted by the Vickers hardness. Then, the overall grinding force model of the whole wheel is developed by incorporating the process parameters and the wheel properties. Finally, micro-grinding experiments are conducted to verify the model, using only the Taylor factor as the variable. The proposed analysis is also compared with the previously reported model, which considers the Taylor factor as a constant of 3.06. The comparison between the two predictions and experimental data shows that the consideration of Taylor factor variability improves the accuracy of prediction.

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Section: Calculated and Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Forces prediction in micro-grinding single-crystal copper considering the crystallographic orientation

Zhao

et al. 2018

Manufacturing Rev.

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“…where M F is the Taylor factor model of single FCC crystal proposed by Zhao [22], where f j represents the ODF of crystalline with the orientation of j.…”

Section: Taylor Factor Model For Polycrystalline Materialsmentioning

confidence: 99%

“…For polycrystalline materials, the effect of texture on the material strength named Taylor factor and it was assumed to be a constant of 3.06 [21]. Zhao et al [22] proposed a physical model of Taylor factor for polycrystalline materials which quantified the effect of material COs and the ODF on the flow stress in micro-grinding. However, to the best of knowledge from this paper's authors, few quantitative models of the temperature were developed by considering the effects of texture in micro-grinding polycrystalline materials.…”

Section: Introductionmentioning

confidence: 99%

Micro-grinding temperature prediction considering the effects of crystallographic orientation

Zhao

Liang

2019

Manufacturing Rev.

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Tensile stress and thermal damage resulting from thermal loading will reduce the anti-fraying and anti-fatigue of workpieces, which is undesirable for micro-grinding, so it is imperative to control the rise of temperature. This investigation aims to propose a physical-based model to predict the temperature with the process parameters, wheel properties and material microstructure taken into account. In the calculation of heat generated in the micro-grinding zone, the triangular heat-flux distribution is adopted. The reported energy partition model is also utilized to calculate the heat converted into the workpiece. In addition, the Taylor factor model is used to estimate the effects of crystallographic orientation (CO) and its orientation distribution function (ODF) on the workpiece temperature by affecting the flow stress and grinding forces in micro-grinding. Finally, the physical model is verified by performing micro-grinding experiments using the orthogonal method. The result proves that the prediction matches well with the experimental values. Besides, the single-factorial experiments are conducted with the result showing that the model with the consideration of the variation of Taylor factor improves the accuracy of the temperature prediction.

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“…Zhao M., Ji X., Li B., Liang, S.Y. studied the changes in the stress resulting from changes in the crystallographic orientation during micro-grinding and the resulting cutting force during the processing of a single grain [10]. In their work, the authors described the approbation process of the developed model in microgrinding of ceramics.…”

Section: Introductionmentioning

confidence: 99%

Experimental research of cutting forces during microgrinding

D’yakonov

Gorodkova

2018

MATEC Web Conf.

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In high-speed and heat-stressed processes, the cutting force is a determining parameter of surface quality. The existing studies of the cutting force in microgrinding are experimental and their results are valid for a narrow range of the processed material. The paper describes the experimental study of strength when microgrinding complex alloy steel. The obtained results allow to expand the field of use of micro-grinding technology applied to metal materials.

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Investigation on the influence of material crystallographic orientation on grinding force in the micro-grinding of single-crystal copper with single grit

Cited by 14 publications

References 19 publications

Forces prediction in micro-grinding single-crystal copper considering the crystallographic orientation

Forces prediction in micro-grinding single-crystal copper considering the crystallographic orientation

Micro-grinding temperature prediction considering the effects of crystallographic orientation

Experimental research of cutting forces during microgrinding

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