A three-dimensional analytical model to predict the thermo-metallurgical effects within the surface layer during grinding and grind-hardening

Foeckerer, Tobias; Zaeh, Michael F.; Zhang, O.B.

doi:10.1016/j.ijheatmasstransfer.2012.09.029

Cited by 63 publications

(14 citation statements)

References 36 publications

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“…For instance, Foeckerer and Zaeh [219] presented a finite element model to simulate the 3D temperature field produced due to grinding and grind hardening using a triangular thermal (a) right-angled triangle model (b) scalene triangle model Fig. 28 Triangle thermal source models for grinding [5,15,39,41,43,210,211] Fig.…”

Section: Modeling and Simulation Of Grinding-induced Phase Transformamentioning

confidence: 99%

Review on grinding-induced residual stresses in metallic materials

Ding

Zhang

et al. 2016

Int J Adv Manuf Technol

103

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This paper provides a state-of-the-art review on the investigations into the residual stresses in metallic structural materials generated by grinding. The materials covered include steels, titanium alloys, and nickel-based superalloys. The formation mechanisms of the residual stresses and their impacts are specifically discussed. Some major influential factors on the residual stresses formation in grinding, such as grinding wheel characteristics, dressing techniques, grinding parameters, cooling conditions, and properties of workpiece materials, are analyzed in detail. These include experimental measurement, modeling, simulation, knowledge-based monitoring, and fuzzy analysis. Finally, the paper highlights some important aspects of grinding-induced residual stresses for further investigation.

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Section: Modeling and Simulation Of Grinding-induced Phase Transformamentioning

confidence: 99%

Review on grinding-induced residual stresses in metallic materials

Ding

Zhang

et al. 2016

Int J Adv Manuf Technol

103

View full text Add to dashboard Cite

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“…where q w (x) is the heat flux transferred into the workpiece, R w is the ratio of heat transferred into the workpiece that can be calculated by the formula proposed by Venkatachalapathy and Rajmohan [16], q w is the average heat flux transferred into the workpiece, and H(x) is the distribution function, which can be described as follows:…”

Section: Thermal Analysismentioning

confidence: 99%

“…A three-dimensional analytical model was presented to calculate the three-dimensional temperature field that results from grinding and grind hardening, using a triangular heat source and considering the effect of the grinding fluid. Based on the transient temperature distribution, the phase transformation within the surface layer and the resulting hardened layer thickness were also determined using analytical models [16]. A numerical analysis of the triangular heat transfer model was conducted to study the grind hardening of a cylindrical surface.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental studies on grind-hardening cylindrical surface

Liu

Yang

Zheng

et al. 2014

Int J Adv Manuf Technol

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This study focused on the rules and effects of grind hardening a cylindrical surface. A compound heat transfer model of grinding, appropriate for cylindrical surfaces, was established to study the grinding mechanism, and the temperature distribution of grind-hardening cylindrical surfaces was analysed. Experiments were conducted to validate the theoretical model and study the effect of different materials, grinding depths, workpiece rotational speeds and wheel characteristics on grind hardening. The results indicated that the transition layer and strengthened layer of steel 41Cr4 were thicker than those of steel C45E4 and that there were more explicit boundaries between the steel 41Cr4's matrix, transition layer and strengthened layer. The surface hardness and thickness of the hardened layer were affected primarily by grinding depth. The greatest surface hardness and hardened layer thickness were obtained at a grinding depth of 0.4 mm and a workpiece rotational speed of 0.2 m/min with grinding wheel model PA46L8V for both steel 41Cr4 and C45E4.

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“…Grind-hardening effect is performed by hardened layer. The performance of hardened layer varies from different microstructure [4]. Brinksmeier and Brockhoff from Gernany [5][6] proposed the technology that grinding heat can be used to quench steel surface first in 1994.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Part Surface Residual Stress Based on Grind-hardening Process

Liu

Yuan

Wang

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Grind-hardening is a new technology for steel parts surface enhancing which uses thermal and mechanical composite effects on the parts in the grinding process. During the process, the workpiece surface generates hardened layer which improves the surface quality. As a key performance indicator of measuring the part surface quality, the residual stress of the hardened layer affects the strength, fatigue life and corrosion performance of the part directly. Therefore, the study of residual stress in hardened layer plays an important role in the effective control of hardened layer quality. First, grinding temperature field is analysed for studying the distribution characteristics of surface residual stress after grind-hardening process. Then, different grinding parameters an effect on the temperature field is studied by establishing the mathematical model and the heat transfer model of the grinding zone temperature field. Furthermore, combined with the grinding force generated in the grinding process, the thermomechanical coupling analysis with finite element method is adopted to obtain the residual stress and its distribution of the part. Also, the influence mechanism of the part residual stress formation is revealed. IntroductionGrind-hardening technology is a newly built composite processing technology. It implements hardening using grinding heat on the surface, which makes the surface temperature rising to austenitizing temperature quickly, and the then rapidly cooling to the temperature of martensitic transformation. The process improves the surface hardness and wear resistance, which achieves same performance as surface hardening treatment [1][2][3]. The new technology combines the grinding technology with heat treatment well, which comply the increasingly advocated concept of process integration and green manufacturing in the engineering. Grind-hardening effect is performed by hardened layer. The performance of hardened layer varies from different microstructure [4]. Brinksmeier and Brockhoff from Gernany [5][6] proposed the technology that grinding heat can be used to quench steel surface first in 1994. Then grind-hardening technology attracted the attention of scholars from different countries. Up to now, most researches focus on local microstructure and microhardness and hardness penetration depth of the workpieces [7][8][9].During the grind-hardening process, the combining effect of grinding force and grinding heat produce a lot of grinding force on the part surface. After grinding process, part of the grinding force remains in the surface, which formating the grinding residual stress. It has a decisive impact on part performance, dimensional stability, fatigue strength and wear resistance. For this consideration, it has some practical significance to carry out the residual stress study on part surface.

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A three-dimensional analytical model to predict the thermo-metallurgical effects within the surface layer during grinding and grind-hardening

Cited by 63 publications

References 36 publications

Review on grinding-induced residual stresses in metallic materials

Review on grinding-induced residual stresses in metallic materials

Numerical and experimental studies on grind-hardening cylindrical surface

Simulation of Part Surface Residual Stress Based on Grind-hardening Process

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