Investigation on the Effect of Dynamic Focus Feeding and Widening Path in Nanosecond Laser Drilling

Laser trepan drilling and laser helical drilling are typical methods for fabrication of micro through-holes through scanning laser beam. In the drilling process, the subsequent laser pulse may be occluded by the edge and the sputter deposition at the edge of the previous drilled trench. Dynamic focu...

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Bibliographic Details

Published in:	Micromachines
Main Authors:	Jianke Di, Jian Li
Format:	Article
Language:	English
Published:	MDPI AG 2025-09-01
Subjects:	laser drilling through-hole superalloys trepan helical dynamic focus feeding
Online Access:	https://www.mdpi.com/2072-666X/16/10/1081