Optimization of delamination factor in drilling medium-density fiberboards (MDF) using desirability-based approach

Medium-density fiberboards are finding increased applications in furniture and domestic industries. Drilling of these materials cannot be avoided. Delamination associated in drilling is the serious problem and this problem should be addressed further. This paper presents the systematic experimental investigation, analysis and optimization of delamination factor in drilling of medium-density fiberboards (MDF). Experiments were conducted on CNC drilling machine at various cutting conditions. The parameters considered for the experiments are cutting speed, feed rate and drill diameter. An empirical model has been developed for predicting the delamination factor at entry and exit of the holes in drilling of MDF boards. Desirability function based approach is employed for the optimization drilling parameters for minimizing the delamination factor at entry and exit in drilling of MDF boards. The influences of different parameters and their interactions are studied in detail and presented in this study.