The temperature model and experimental verification of disc milling grooving in blisk

High temperature is produced in disc milling grooving of blisk, which has a negative effect on surface quality and tool life, so the research on disc milling grooving temperature is of great significance. In the study, first, the temperature prediction mode is established according to the characteristic of disc milling grooving, the constant “A” in model is determined by iterative computations, and then constant “A” is confirmed by the semi-artificial thermocouple method. Second, the solution of model can be obtained: milling temperature is positively related to the product of cutting speed and cutting thickness of single tooth. Last, the model effectiveness is verified. The results shows that the temperature model has some limitations: the prediction accuracy of model is higher when per tooth feed h ∈ [0.024 mm, 0.16 mm]. However, the actual milling temperature is higher than the predicted temperature when h < 0.024 mm or h > 0.16 mm. Therefore, too small or too large per tooth feed should be avoided during actual processing. The validity of the disk milling temperature model is verified by the experiment of disk milling temperature model.