A study of material removal rates using the double pulse format with nanosecond pulse laser on metals

Using a commercial nanosecond pulse laser system, experiments were conducted to measure and compare conventional percussion drilling performance with the double pulse machining method. The quality of the hole is considered along with drilling rate to measure the performance of the double pulse format. The data shows a significant performance enhancement by redistributing energy into a double pulse with temporal spacing between 25 and 200ns. Redistributing energy from the first pulse to the second pulse also improved drilling speed.Using a commercial nanosecond pulse laser system, experiments were conducted to measure and compare conventional percussion drilling performance with the double pulse machining method. The quality of the hole is considered along with drilling rate to measure the performance of the double pulse format. The data shows a significant performance enhancement by redistributing energy into a double pulse with temporal spacing between 25 and 200ns. Redistributing energy from the first pulse to the second pulse also improved drilling speed.