TY - JOUR

T1 - Modeling of heat transfer in tool grinding for multiscale simulations

AU - Wiesener, F.

AU - Bergmann, B.

AU - Wichmann, M.

AU - Eden, M.

AU - Freudenberg, T.

AU - Schmidt, A.

N1 - Funding Information: This research was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – project nr. 439916647 – as part of the Priority Program 2231 Ef“ ficient cooling, lubrication and transportation – coupled mechanical and fluid-dynamical simulation methods for efficient production processes U(FLSIMPO)R

PY - 2023

Y1 - 2023

N2 - Tool grinding is a fundamental process step when manufacturing cylindrical cemented carbide tools. A deeper understanding of the relationship between heat generation, heat transfer and fluid dynamics is essential to optimize the application of cooling lubrication. Due to the porous structure of the grinding tool as well as the rough surfaces of tool and workpiece, this inherently leads to multiscale problems. In this paper, an approach for modeling the heat transfer between the grinding tool, the workpiece and coolant on the microscale and mesoscale is introduced, including the effective influence of the porous structure. As a basis for the simulations, experimental investigations are conducted using individual abrasive grains. A linear relationship between the single grain chip cross section and the tangential force is established with an average RMSE of 1.421 N, allowing the total heat flux to be calculated. The results are then transferred to continuous and discontinuous 2D multiscale fluid dynamic simulations in order to predict heat generation and to potentially optimize the cooling lubrication in grinding processes.

AB - Tool grinding is a fundamental process step when manufacturing cylindrical cemented carbide tools. A deeper understanding of the relationship between heat generation, heat transfer and fluid dynamics is essential to optimize the application of cooling lubrication. Due to the porous structure of the grinding tool as well as the rough surfaces of tool and workpiece, this inherently leads to multiscale problems. In this paper, an approach for modeling the heat transfer between the grinding tool, the workpiece and coolant on the microscale and mesoscale is introduced, including the effective influence of the porous structure. As a basis for the simulations, experimental investigations are conducted using individual abrasive grains. A linear relationship between the single grain chip cross section and the tangential force is established with an average RMSE of 1.421 N, allowing the total heat flux to be calculated. The results are then transferred to continuous and discontinuous 2D multiscale fluid dynamic simulations in order to predict heat generation and to potentially optimize the cooling lubrication in grinding processes.

KW - Heat transfer

KW - Material removal

KW - Modeling

KW - Multiscale simulation

KW - Tool grinding

UR - http://www.scopus.com/inward/record.url?scp=85164538751&partnerID=8YFLogxK

U2 - 10.1016/j.procir.2023.03.046

DO - 10.1016/j.procir.2023.03.046

M3 - Conference article

AN - SCOPUS:85164538751

VL - 117

SP - 269

EP - 274

JO - Procedia CIRP

JF - Procedia CIRP

SN - 2212-8271

T2 - 19th CIRP Conference on Modeling of Machining Operations, CMMO 2023

Y2 - 31 May 2023 through 2 June 2023

ER -