Harald Ferstl
| Position | PhD student |
|---|---|
| College | Hughes Hall |
| Qualifications/honours | Dipl.- Ing (FH) in Mechanical Engineering 2004, FH Kempten, Germany |
| Address | Department of Chemical Engineering and Biotechnology University of Cambridge New Museums Site Pembroke Street Cambridge CB2 3RA, UK |
| hf260@cam.ac.uk | |
| Research group | P4G |
| Research project title | Control of defect formation in extruded tungsten carbide pastes |
| Supervisor | Dr Ian Wilson |
| Advisor | Dr Sarah Rough |
Research description
Ceratizit manufactures a series of tungsten carbide (WC) machine tool parts by extrusion using different binder systems. Assuring product quality is a key objective for the company: the presence of internal and external defects on extruded parts in the green state, before drying and sintering, and in the sintered state is to be minimised by improving the company's understanding of the mechanisms and phenomena responsible for such defects.
This project will investigate the relationships between paste formulation, extrusion (die design and operating conditions) and de-binding responsible for defect formation.
Research keywords
tungsten carbide, extrusion, dryingMain collaborators
CERATIZIT Austria GmbHKey publications
Ferstl, H., Barbist, R., Rough, S.L. and Wilson, D.I. (2012). Influence of visco-elastic binder properties on ram extrusion of a hardmetal paste. J. Materials Sci, 47(19), 6835-6848.
Ferstl H., Barbist R., Rough S.L, Wilson D.I. (2011). Influence of temperature on the extrusion of a novel hardmetal paste. EuroPM 2011, 9th-12th October 2011. Barcelona, Spain.
Wilmot R.B., Barbist R., Ferstl H., Brandstätter W., Patel M.J., Wilson D.I. (2009). Characterisation and design of wax-based hard metal extrusion processes. 17th Plansee Seminar, 25th-29th May 2009. Reutte, Austria.