Determination of optimum parameters for multi responses in drilling of Al 7075 - 10%SiCp Metal Matrix Composite under MQL condition using Taguchi-Fuzzy Approach

摘要

Now a day the reasons for an increase in the interest to perform machining operations in dryear-dry environments are health and safety on the cost, operator, ease of chip recyclability, etc. However the important machining process, which is difficult to perform in dry environment, is drilling. Without coolant, drilling leads to high thermal distortion and poor tool life. In order to overcome these conflicts, it is essential to study the machining performances with minimum quantity lubrication (MQL) environment and dry environment. In the present paper Drilling experiments are conducted according to Taguchi L27 on AL7075-10%SiCp metal matrix composite with uncoated and coated HSS tools under MQL environment. The responses of drilling are analyzed using the Taguchi-Fuzzy model and the best combinations of process parameters are identified.