Researcher Phd Student
London, United Kingdom
Additive manufacturing (AM) technologies have a promising list of potential benefits for low to medium volume manufacture for metal parts. Understanding the structural integrity of AM components is key to increasing use in high performance and safety critical applications. My PhD focused on:- developing a new camera based in-situ process monitoring system- correlating results with micro CT scans to validate the systems efficacyWe used a 20kHz camera to record images of every micro weld that makes up a part.This generated ~1TB of data per centimetre cubed of material.We then trained a model to correlate between the camera images and micro CT scans of the part.Finally we used the trained model on fresh data to measure porosity in unseen parts.de Winton, H.C., Cegla, F. and Hooper, P.A., 2021. A method for objectively evaluating the defect detection performance of in-situ monitoring systems. Additive Manufacturing, 48, p.102431.Williams, R.J., de Winton, H., Fernandez, V. and Hooper, P.A., 2022. Localised porosity detection in laser powder bed fusion using in-situ monitoring. Available at SSRN 4255024.