Advanced Metals Processing

TMC_machine

Thermomechanical Compression Machine (TMC)

The Thermomechanical Compression Machine was purpose built and designed to simulate metal forming processes, and represents the most advanced machine of its type. It has the capacity to deform in one of two deformation modes: plane strain compression and axisymmetric compression. Whereas the former mode of deformation is important for the simulation of flat products, the latter is necessary for the physical simulation of long products and forgings.  

In addition to the TMC supporting many of the research activities within the Department, it is also available for external contract work, and in this capacity, it has been used to develop processing windows for many different industries.


TMC Specifications
TMCMax load: 500 kN
Max displacement rate: 3000 mm/s
Displacement stroke: 100 mm
Full quench <0.5 s from end of deformation
Rapid, controlled heating (to 1300°C) and cooling via induction coil + integrated water mist and/or forced air 
Fully programmable interface

ASP_II_machineArbitrary Strain Path Test Machine (ASP II)

Over the past decade, sophisticated numerical models have given the metallurgical processing industry the capability to optimise hot deformation processing conditions, and hence, significantly improve the product quality. However, when the process involves complex changes in strain path, these models are much less accurate, in most part, due to insufficient experimental data for calibration.

The discrepancies lie over the full spectrum of hot working – from load prediction to dynamic microstructure evolution (e.g. recrystallisation, dislocation substructures, texture development) and static microstructure development (e.g. transformation kinetics and recrystallisation).

With this in mind, IMMPETUS (Institute for Microstructural and Mechanical Process Engineering: the University of Sheffield)  developed the Arbitrary Strain Path (ASP) test machine, which is capable of subjecting metals and alloys to complicated strain path histories under industrial hot working conditions.

ASP II Specifications

Capable of either concurrent or sequential torsion (forward and reverse) and tension or compressionspecimen_in_ASP
Maximum Load: 100 kN
Maximum Displacement Rate: 100 mm/s
Displacement Stroke: 50 mm
Maximum Torque: 500 Nm
Maximum Rotation Rate (single) – 1000 rpm
Continuous – 550 rpm
Maximum Temperature: 1300°C
Quenching via water spray
Fully programmable interface
Temperature range: 200 to 1300°C

For enquiries please contact:

Professor E J Palmiere
Professor of Metallurgy and Thermomechanical Processing
Tel: +44 114 222 5978
Fax: +44 114 222 5943
Email: e.j.palmiere@sheffield.ac.uk