Response surface method based optimization of ytterbium fiber laser parameter during machining of Al/Al2O3-MMC

► The yitterbium fiber laser has a capability to perform successful quality hole on Al/Al2O3-MMC. ► The material removal rate increases with increase in N2 gas pressure. ► The maximum material removal rate observed with in the range of 400 to 475 W laser power. ► The developed mathematical models for MRR and taper on hole are adequate; it can be used effectively. ► The taper is minimum at the range of 18 to 20 bar N2 gas pressure and 600 to 680 Hz modulation frequency.