Characterization of Laser Drilling and Parametric Optimization Using Golden Jackal Optimizer.

The rising applications of hybrid composites demand the best manufacturing quality solutions. This article uses a newly developed hybrid composite material of carbon, basalt and Kevlar-29 woven fibres manufactured for laser drilling operation for its characterization and optimization using a golden jackal optimizer. The Nd: YAG laser parameters used are lamp current (LC), pulse width (PW), stand-off distance (SoD) and compressed air pressure (CAP). The responses considered for this work are hole taper angle (HT) and average overcut (AvgOC). The experimental set was designed through the Box–Behnken design. Optimization has been carried out using the Golden Jackal optimizer. Optimized responses are theoretically obtained and validated with the confirmation experiment as LC = 220 A, PW = 3 ms, SoD = 1.1 mm and CAP = 12 kg/cm². Whereas predicted and experimental values of HT and AvgOC are recorded as 0.113° and 0.125° and 0.066 and 0.098 mm, respectively. The confirmatory experiment yielded a good agreement with the predicted responses. [ABSTRACT FROM AUTHOR]