Due to its mechanical qualities and resilience to high temperatures, Ti-6Al-4V alloy is used in various industries. However, laser machining of this alloy frequently results in surface imperfections such as recast layers, cracks, and heat-affected zones, which compromises its performance. The current study investigates the effect of gradually increasing the aided gas supply during the nanosecond (ns) laser machining process on the surface quality of Ti-6Al-4V alloy. Experiments employ a cutting-edge ns laser system that controls the aided gas supply to assess its effect on creating huge surfaces. The machined surfaces are then analyzed using optical, SEM, surface profilometry, and EDX.The findings show that gradually increasing the aided gas supply significantly improves surface quality. The recast layer thickness is reduced considerably, reducing cracks and heat-affected zones. These findings emphasize optimizing the aided gas supply during Ti-6Al-4V alloy ns laser machining to improve surface quality and scalability. The proposed approach provides valuable insights for industries involved in laser machining, enabling them to achieve superior surface characteristics.