CUED Publications database

Monitoring and closed loop feedback control of ultrafast glass welding

Yu, KXZ and Sparkes, MR and Pangovski, K and O'neill, W (2016) Monitoring and closed loop feedback control of ultrafast glass welding. In: UNSPECIFIED.

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Abstract

Laser based precision processing of micro and nanoscale components is a common manufacturing and prototyping production method given its non-contact nature and well defined energy delivery. However, while laser parameters are highly controllable, laser-material interactions are inherently unstable, resulting in increased rejection rates. Here, swept source optical coherence tomography (SS-OCT) is used to provide feedback control of the position, ensuring that the weld structure will successfully bridge the interface between materials. OCT is also used to monitor the glass weld cycle in-situ, allowing possible control of the structure size by terminating processing once desired results have been achieved. Finally, OCT is able to determine whether or not a successful weld has been created.

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: 03 Aug 2017 03:08
DOI: