• Joseph Abraham Chacko
• Benu Deepsun

Abstract. Ceramics are becoming most popular in many fields due to its best mechanical and physical properties. Earlier methods to machine brittle and hard materials ae difficult. One among the non-traditional machining methods, laser beam machining. It has emerged as an effective technique for drilling of hard materials as well as ceramics. The aim of the work is to study the drilling process parameters on alumina by CO2 laser. The study parameters considered in the present experiments are based on the laser beam power and an exposure time for drilling. The final results found by optical observations suggest that ordinary and coated alumina cannot withstand to a contact of the laser beam and crack during the formation of the drilling hole. The minimum power and duration of work were found to be the optimal parameters for drilling the material, after observations with high detail no micro-cracks were present and also we see that the edges of the holes have better quality of surface with best aspects.

Structural Ceramics, Alumina, CO2 laser drilling, Optimal parameters

"ANALYSIS AND OPTIMISATION OF MACHINING PARAMETERS FOR LASER DRILLING ON STRUCTURAL CERAMICS USING TAGUCHI METHOD", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 9, page no.467-471, September-2018, Available :http://www.jetir.org/papers/JETIR1809470.pdf

"ANALYSIS AND OPTIMISATION OF MACHINING PARAMETERS FOR LASER DRILLING ON STRUCTURAL CERAMICS USING TAGUCHI METHOD", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 9, page no. pp467-471, September-2018, Available at : http://www.jetir.org/papers/JETIR1809470.pdf