استخدام غاز الآركون لتحسین عملیة تثقیب المعادن بلیزر النیدمیوم-یاك النبضي

Abstract

In this work, a pulsed Nd:YAG laser(out put energy=5J and pulse duration=300μsec) was used to perform drilling in samples of lead, stainless steel 304, brass, copper and aluminum. Laser irradiation was carried out in both air and in a suitable chamber of controlled pressure inside. The effect of pressure inside the chamber on the drilling process was investigated. Then, the chamber was filled with argon gas to investigate its effect on drilling process where an enhancement in drilling depth was observed compared to that in case of irradiation in air and chamber of air pressure. As well, the effect of focus position on the process was studied with the pressure varying inside the chamber in order to construct a mathematical model describing such process

Keywords

• Nd:YAG laser