CUED Publications database

High resolution laser micromachining of TiN coatings through the regulation of pulse characteristics

Demir, AG and Pangovski, K and O'Neill, W and Previtali, B (2013) High resolution laser micromachining of TiN coatings through the regulation of pulse characteristics. In: UNSPECIFIED pp. 221-224..

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Abstract

The first part of this work presents the study of micro drilling conditions on TiN coatings with a MOPA fibre laser with pulse tuning capability. Pulse shapes with pulse durations varying between 12-200 ns have been employed. Single and multiple-pulse ablation conditions were mapped for different pulse durations to effect greater control of the two main geometrical attributes, namely diameter and depth. In the second part of the work, the mapped conditions were used to design more complicated micro features with dimensions close to the laser beam diameter (36 μm). Elliptical dimple shape was chosen as a demonstrator case.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div E > Production Processes
Div E > Manufacturing Systems
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:21
Last Modified: 17 Aug 2017 01:24
DOI: