Difference between revisions of "Paul Dryburgh"
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| + | ===Publications=== | ||
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| + | <bibtex> | ||
| + | @article{speidel, | ||
| + | title = "Crystallographic texture can be rapidly determined by electrochemical surface analytics ", | ||
| + | journal = "Acta Materialia ", | ||
| + | volume = "159", | ||
| + | number = "", | ||
| + | pages = "89 - 101", | ||
| + | year = "2018", | ||
| + | note = "", | ||
| + | issn = "1359-6454", | ||
| + | doi = "https://doi.org/10.1016/j.actamat.2018.07.059", | ||
| + | url = "https://www.sciencedirect.com/science/article/pii/S1359645418305998", | ||
| + | author = "A. Speidel and R. Su and J. Mitchell-Smith P. Dryburgh and I Bisterov and D. Pieris and W. Li and R. Patel and Matt Clark and A.T.Clare", | ||
| + | |||
| + | } | ||
| + | </bibtex> | ||
| + | |||
| + | |||
| + | |||
| + | <bibtex> | ||
| + | @article{Hirsch2018127, | ||
| + | title = "Targeted rework strategies for powder bed additive manufacture ", | ||
| + | journal = "Additive Manufacturing ", | ||
| + | volume = "19", | ||
| + | number = "", | ||
| + | pages = "127 - 133", | ||
| + | year = "2018", | ||
| + | note = "", | ||
| + | issn = "2214-8604", | ||
| + | doi = "https://doi.org/10.1016/j.addma.2017.11.011", | ||
| + | url = "https://www.sciencedirect.com/science/article/pii/S2214860417303925", | ||
| + | author = "M. Hirsch and P. Dryburgh and S. Catchpole-Smith and R. Patel and L. Parry and S.D. Sharples and I.A. Ashcroft and A.T. Clare", | ||
| + | keywords = "Non-destructive evaluation", | ||
| + | keywords = "Additive manufacture", | ||
| + | keywords = "Selective rework", | ||
| + | keywords = "Selective laser melting ", | ||
| + | abstract = "Abstract A major factor limiting the adoption of powder-bed-fusion additive manufacturing for production of parts is the control of build process defects and the effect these have upon the certification of parts for structural applications. In response to this, new methods for detecting defects and to monitor process performance are being developed. However, effective utilisation of such methods to rework parts in process has yet to be demonstrated. This study investigates the use of spatially resolved acoustic spectroscopy (SRAS) scan data to inform repair strategies within a commercial selective laser melting machine. New methodologies which allow for rework of the most common defects observed in selective laser melting (SLM) manufacturing are proposed and demonstrated. Three rework methodologies are applied to targeted surface breaking pores: a hatch pattern, a spiral pattern and a single shot exposure. The work presented shows that it is possible to correct surface breaking pores using targeted re-melting, reducing the depth of defects whilst minimising changes in local texture. For the hatch rework and spiral rework, a reduction in defect depth of 50% and 31% were observed, respectively, however, no improvement was seen after the single shot exposures. This work is part of a programme to develop a method by which defects can be detected and the part reworked in-process during \{SLM\} to enable defect specification targets to be met. Although further work in developing build-characterise-rework strategies for integrated and targeted defect correction is needed, the feasibility of the underlying method of identifying and selectively reworking to reduce a defect has now been demonstrated for the first time. " | ||
| + | } | ||
| + | </bibtex> | ||
Revision as of 13:39, 24 October 2018
Paul is a second year EngD student in The University of Nottingham's Optics and Photonics research group. Paul is investigating Quantitative NDE for Additive Manufacture, through The Centre for Doctoral Training in Non-Destructive Evaluation (RCNDE). Paul graduated from The University of Edinburgh in 2016, with an MEng in Mechanical Engineering.
Primary research focusses include, Lamb wave imaging for subsurface defects, mechanical systems integration and developing in-situ workflows for SLM systems.
Contact:
Email:
- paul.dryburgh@nottingham.ac.uk
Phone Number:
- (0115) 84-67892
Location:
- Room 202, Tower Building,
- The University of Nottingham,
- University Park,
- Nottingham,
- NG7 2RD
Publications
A. Speidel, R. Su, J. Mitchell-Smith P. Dryburgh, I Bisterov, D. Pieris, W. Li, R. Patel, Matt Clark, A.T.Clare - Crystallographic texture can be rapidly determined by electrochemical surface analytics
- Acta Materialia 159:89 - 101,2018
- https://www.sciencedirect.com/science/article/pii/S1359645418305998
BibtexAuthor : A. Speidel, R. Su, J. Mitchell-Smith P. Dryburgh, I Bisterov, D. Pieris, W. Li, R. Patel, Matt Clark, A.T.Clare
Title : Crystallographic texture can be rapidly determined by electrochemical surface analytics
In : Acta Materialia -
Address :
Date : 2018
M. Hirsch, P. Dryburgh, S. Catchpole-Smith, R. Patel, L. Parry, S.D. Sharples, I.A. Ashcroft, A.T. Clare - Targeted rework strategies for powder bed additive manufacture
- Additive Manufacturing 19:127 - 133,2018
- https://www.sciencedirect.com/science/article/pii/S2214860417303925
BibtexAuthor : M. Hirsch, P. Dryburgh, S. Catchpole-Smith, R. Patel, L. Parry, S.D. Sharples, I.A. Ashcroft, A.T. Clare
Title : Targeted rework strategies for powder bed additive manufacture
In : Additive Manufacturing -
Address :
Date : 2018
