Dr David Easton

Chief Engineer (Defence)

National Manufacturing Institute Scotland

Contact

Publications

Back to staff profile

Publications

Evaluating residual stress in additively manufactured nitinol shape memory alloy: Rangaswamy Sampreet, Chekotu Josiah Cherian, Gillick Thomas, Hughes Cian, Nicholl Jayne, Easton David, Şimşir Caner, Brabazon Dermot; npj Advanced Manufacturing Vol 2 (2025); https://doi.org/10.1038/s44334-025-00027-y
Experimental investigations and finite element modelling of inertia friction welded joints of Ti-6Al-4V alloy: Ramachandran Saran, Banerjee Amborish, Da Silva Laurie, Easton David, Rahimi Salah, Wynne Bradley; World Titanium Conference 2023 (2023)
Relieving the stress - VSR for metallic parts: Easton David, Laidlaw Stuart, Rahimi Salah; (2021)
Residual stress in case hardened steel gears: Easton David, Aylott Chris, Shaw Brian, Rahimi Salah; American Gear Manufacturer Association Fall Technical Meeting 2018 (2018)
Effects of forming route and heat treatment on the distortion behaviour of case-hardened martensitic steel type S156: Easton David, Perez Marcos, Huang Jianglin, Rahimi Salah; Heat Treat 2017 (2017)
Residual stress generations in brazed tungsten dissimilar joints: Easton D, Wood J, Rahimi S, Galloway A, Zhang Y, Hardie C; IEEE Transactions on Plasma Science Vol 44, pp. 1-6 (2016); https://doi.org/10.1109/TPS.2016.2565205

More publications

Research

Back to staff profile

Projects

AFRC-CRAD-06321 RFW: Rotary Friction Welding of CuCrZr for Novel Hote End Nose: Ramachandran, Saranarayanan (Principal Investigator) Easton, David (Co-investigator); 06-Jan-2023 - 28-Jan-2023
AFRC-CRAD-06321 RFW: Rotary Friction Welding of CuCrZr for Novel Hot End Nose: Ramachandran, Saranarayanan (Principal Investigator) Easton, David (Co-investigator); Rautomead Limited has a requirement to manufacture a hot-end nose component with an extended overall length compared to historical designs. The extended hot end nose component is manufactured from Copper Chromium Zirconium (CuCrZr) and, due to exposure conditions, cannot include any elastomeric sealing elements. These components are used in the client’s continuous casting machines; however, the new design requires a blind trepanned hole significantly deeper than previous components, increasing from 92mm to approximately 222mm. The client’s current machining methods are not appropriate for achieving this increased trepan depth; there is a risk that a lengthened tool will be fragile and unable to reach the increased depth, and that coolant will not reach the cutting area while facilitating chip removal.
The client has approached NMIS AFRC for assistance in identifying possible alternative manufacturing methods for this extended hot-end nose component and trepanned depth. The NMIS AFRC Materials Characterisation and Residual Stress team has proposed a new manufacturing process: Rotary Friction Welding of Near-Net-Shape CuCrZr preforms and the use of enhanced, deeper trepanning tooling (as communicated with NMIS AFRC partner MAPAL).
Project value: £10,000; 06-Jan-2023 - 28-Jan-2023
AFRC-DIRF-05760: Easton, David (Principal Investigator); 07-Jan-2022 - 31-Jan-2022
AFRC_DIRF_1586: Easton, David (Principal Investigator) Rahimi, Salaheddin (Co-investigator); 09-Jan-2021 - 30-Jan-2021
AFRC_DIRF_1858: Easton, David (Principal Investigator); 08-Jan-2021 - 31-Jan-2021
AFRC_DIRF_1745: Easton, David (Principal Investigator); 08-Jan-2021 - 31-Jan-2021