Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Circularity vs taper in micro-drilling with pulsed Nd:YAG
Submission Author:
Dair Ferreira Salgado Junior , MT
Co-Authors:
Dair Ferreira Salgado Junior
Presenter: Dair Ferreira Salgado Junior
doi://10.26678/ABCM.COBEM2017.COB17-2760
Abstract
The evolution of the drilling has brought us the micro-drilling by pulsed laser, but this in comparison with the conventional one presents problems with the circularity and the taper. The present study observed how the increase in peak power affects the circularity and taper of micro holes. Combinations of the parameters used to obtain holes in 1 mm thick AISI 316L steel plates were made using a pulsed Nd:YAG laser comparing these parameters in each combination. The increase of the peak power reduces the taper of the micro-holes, but this caused a loss of circularity at the exit of the holes some arriving at forms near squares.
Keywords
Nd:YAG, Circularity, Taper, AISI 316L, Micro-drilling
