Abstract :
Laser cutting process is a thermal based non-contact machining processes capable of generating complex
cut profiles on almost all the engineering materials. This paper deals with the influence of laser power, speed, standoff
distance and assist gas pressure on the hardness and surface roughness. The selected orthogonal array was L16
for the four parameters arranged at four levels. From the analysis it was found that with the increase in power, speed,
and standoff distance the surface roughness decreases and with the increase in power and at low standoff distance
the hardness of the material increases.
Keyword :
Laser cutting, Power, Cutting Speed, Standoff distance, Surface roughness, Kerf