OPTIMIZATION OF THE GEOMETRIES OF MICRO-SIZED CAVITIES CREATED BY FIBER LASER ON HARDOX 450 STEEL PLATES BY TAGUCHI METHOD

EGE 11th INTERNATIONAL CONFERENCE ON APPLIED SCIENCES, İzmir, Türkiye, 1 - 03 Haziran 2024, ss.612-626, (Tam Metin Bildiri)

Texturing work was carried out on Hardox 450 steel plates, which are frequently preferred in

many different sectors, especially in manufacturing, process and transportation in recent years.

In the texturing process, micro-sized pits with different geometries were formed on 3 mm thick

plates with a fiber laser. The required laser parameters were optimized to obtain the desired

dimple size. Taguchi optimization method was used to save both material, analysis and time.

According to the Taguchi method, 3 parameters and three levels of each parameter were

examined using the L9 orthogonal array. As a result of 9 experiments, the optimum laser

parameters required to obtain the pit with the desired geometry were determined. The optimum

parameters were obtained 20 W for laser power, 200 for the number of repetitions and100 kHz

for laser frequency. In addition, ANOVA analysis was used to calculate the effect of each

parameter on the results. The parameters that affected the result the most were laser power, the

number of repetitions and laser frequency with ratios of 54.06, 29.51 and 16.43%, respectively.