LTW	Laser transmission welding
WW	Weld width, and
DA	Depth of penetration in absorbing material
HAZ	Heat affected zone
FEM	Finite element mode
CB	Carbon Black
PET	Polyethylene terephthalate
PC	Polycarbonate
PBT	Poly (butylene terephthalate)
ABS	Acrylonitrile butadiene styrene
PEEK	Poly-ether-ether-ketone
DFA	Desired function analysis
TLBO	Teaching-learning-based optimization
PA 66	Polyamide
RSM	Response surface methodology
TCC	Thermal contact conductivity
ANN	Artificial neuronal networks
NSGA-II	Non-dominated sorting genetic algorithm II
TGA	Thermal gravimetry analysis