Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
MODELING AND SIMULATION OF THERMAL EFFECTS IN CYLINDRICAL PLUNGE DRY GRINDING WITH PRECOOLING
Submission Author:
Eraldo Jannone da Silva , SP , Brazil
Co-Authors:
Ézio Carvalho de Santana, Eraldo Jannone da Silva, Gabriel Urbano
Presenter: Ézio Carvalho de Santana
doi://10.26678/ABCM.COBEM2023.COB2023-2374
Abstract
In grinding operations, metal working fluids (MWF) are used to minimize heat-associated problems such as surface cracks, burning, and tensile residual stresses. Filtration, recycling, and disposal of MWFs are additional cost factors. As a means to eliminate the use of MWFs, a method of dry grinding was developed with precooled parts. In this method, a cryogenic medium is used to precool the part and subjected it to grinding operation without any MWF supply. However, the performance of the precooled parts in dry grinding depends on the shape, size, and dimensions of the part. For this matter, it is useful and economical to perform thermal simulations in order to predict the effectiveness of precooling. Therefore, Finite Element Analysis (FEA) simulations were employed to model grinding as a moving heat source to evaluate maximum temperatures on cylindrical workpieces. The numerical cylindrical plunge grinding simulations were then validated by dry grinding experiments with and without precooling being applied and an excellent agreement was found between the simulation’s predictions and experimental measurements of temperature.
Keywords
Cryogenic, Cylindrical plunge grinding, thermal simulation, Precooling, Finite Element Method
