Temperature investigation of coated workpieces in intermittent grinding with a cup wheel

Xu, K-Z; Wei, C-J; Hu, DJ; Xu, Lurong; Xu, M-M

doi:10.1177/0954405411409826

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…First, the proportion of heat transferred into the workpiece in the total heat needs to be established. This is represented by the grinding heat distribution coefficient (R w ) [138][139][140][141][142][143]. The grinding heat distribution coefficient quantifies the distribution of heat among the workpiece, grinding wheel, abrasive grain debris, and cooling medium due to heat conduction.…”

Section: T(x Y Z T)=σmentioning

confidence: 99%

Temperature field model in surface grinding: a comparative assessment

Yang,

Kong,

et al. 2023

Int. J. Extrem. Manuf.

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Grinding is a crucial process in machining workpieces because it plays a vital role in achieving the desired precision and surface quality. However, a significant technical challenge in grinding is the potential increase in temperature due to high specific energy, which can lead to surface thermal damage. Therefore, ensuring control over the surface integrity of workpieces during grinding becomes a critical concern. This necessitates the development of temperature field models that consider various parameters, such as workpiece materials, grinding wheels, grinding parameters, cooling methods, and media, to guide industrial production. This study thoroughly analyzes and summarizes grinding temperature field models. First, the theory of the grinding temperature field is investigated, classifying it into traditional models based on a continuous belt heat source and those based on a discrete heat source, depending on whether the heat source is uniform and continuous. Through this examination, a more accurate grinding temperature model that closely aligns with practical grinding conditions is derived. Subsequently, various grinding thermal models are summarized, including models for the heat source distribution, energy distribution proportional coefficient, and convective heat transfer coefficient. Through comprehensive research, the most widely recognized, utilized, and accurate model for each category is identified. The application of these grinding thermal models is reviewed, shedding light on the governing laws that dictate the influence of the heat source distribution, heat distribution, and convective heat transfer in the grinding arc zone on the grinding temperature field. Finally, considering the current issues in the field of grinding temperature, potential future research directions are proposed. The aim of this study is to provide theoretical guidance and technical support for predicting workpiece temperature and improving surface integrity.

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Section: T(x Y Z T)=σmentioning

confidence: 99%

Temperature field model in surface grinding: a comparative assessment

Yang,

Kong,

et al. 2023

Int. J. Extrem. Manuf.

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show abstract

“…The experimental results showed that the heat source of the function curve is more in line with the actual situation than the rectangle heat source and the triangle heat source. Xu et al 7 established the analytical model of temperature field corresponding to triangular heat source in intermittent grinding of the cup wheel, and analyzed the influence trend of grinding parameters on grinding temperature. Zhang et al 8 and Wang et al 9 assumed that the heat flux in the grinding contact area was evenly distributed, and adopted the Jaeger moving heat source theory to establish the analytical model and numerical model for different grinding contact areas of the cup wheel.…”

Section: Introductionmentioning

confidence: 99%

Research on variation of grinding temperature of wind turbine blade robotic grinding

Dai

Xiao-jun

Zhang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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As a large composite curved surface component, the wind turbine blade is easy to suffer from grinding burn if the grinding parameters are improperly selected during the robot grinding process, which will seriously affect the surface grinding quality. In order to effectively predict the surface grinding temperature of robot grinding wind turbine blade, the curved surface grinding heat source model was established according to the material removal depth of any grinding point in the grinding contact area, and the temperature field under different grinding process parameters was numerically simulated using finite element method. The comparison between simulation and experiment indicates that the temperature on both sides of grinding contact area is higher than the middle temperature, and the maximum grinding temperature value appears on the cut-out side of the cup wheel. The maximum grinding temperature increases as increasing the wheel speed, feed rate and maximum grinding depth, feed rate is the biggest influence factor on the grinding temperature. The maximum grinding temperature of finite element simulation is in good agreement with the experimental results and the maximum relative error is <6%. The research results reveal the variation law between the curved surface grinding parameters and grinding temperature of curved surface grinding, which provides reference and basis for the prediction of grinding temperature of the wind turbine blade ground by robot.

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“…The well-known cubic boron nitride (CBN) superabrasive wheels have broad prospects in grinding difficult-to-cut metallic materials, namely, nickel-based superalloy and titanium alloy, due to high hardness, high thermal conductivity, and high wear resistance of CBN superhard material. 1–9 However, because the widely utilized conventional vitrified CBN wheels merely provide a small and irregular space to store chips and coolants in grinding, a great potential of CBN wheels could not be exhibited completely at present. Moreover, limited by the low fracture strength of vitrified bonding materials, the tool edges and working layer (also called as abrasive layer) of the vitrified CBN wheels break easily, particularly in heavy-load grinding and high-speed grinding.…”

Section: Introductionmentioning

confidence: 99%

Grinding temperature and wheel wear of porous metal-bonded cubic boron nitride superabrasive wheels in high-efficiency deep grinding

Ding

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part B:

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High-efficiency deep grinding experiments of Inconel 718 nickel-based superalloy was carried out with the porous metal-bonded cubic boron nitride superabrasive wheel, in which the uniform and large pores were formed by the broken alumina bubble particles in the working layer after wheel dressing. Grinding temperature, energy partitioning into workpiece, and wheel wear were investigated. Results obtained show that long maintenance of low grinding temperature, that is, 50 °C–170 °C, is obtained in high-efficiency deep grinding with the porous metal-bonded cubic boron nitride wheel. The energy partitioning into the ground workpiece is ranged from 2% to 6%, which is smaller than that with the conventional vitrified cubic boron nitride wheels and alumina abrasive wheels. Sufficient storage space for chips and coolants contributes to the excellent performance of the porous metal-bonded cubic boron nitride wheel in high-efficiency deep grinding. Abrasion wear and grain fracture are the dominant wear patterns of the porous cubic boron nitride wheel in the steady wear stage, while chips loading and grain pullout play a critical role in the final dramatic wear behavior of the porous wheel.

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Temperature investigation of coated workpieces in intermittent grinding with a cup wheel

Cited by 4 publications

References 10 publications

Temperature field model in surface grinding: a comparative assessment

Temperature field model in surface grinding: a comparative assessment

Research on variation of grinding temperature of wind turbine blade robotic grinding

Grinding temperature and wheel wear of porous metal-bonded cubic boron nitride superabrasive wheels in high-efficiency deep grinding

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