Burr size parameters

Trial No. Process parameter settings Measured values of burr size ... 

The multiple regression analysis was performed for constructing the RSM-based burr size mathematical models. In the present investigation, the second order burr height and burr thickness mathematical models have been developed in terms of four process parameters, namely, cutting speed (v) feed rate (/), drill diameter (d) and point angle (. The nonlinear second order response surface equation is given by ... 

In order to validate the developed burr size models, five sets of random experiments were performed within the ranges of the process parameters selected and the burr height and burr thickness values were measured. The experimental values were then compared with the predicted values of RSM-based models and it was found that these values were close to each other, as illustrated in Table 7.5. The maximum prediction... 

The existence of non-linear relationship between the burr size and the identified process parameters is clearly evidenced in the response surface plots and hence justifying the use of RSM. 

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