Provision of a fundamental description of metal cutting and forming technology
Demonstration of basic CNC programming techniques
Practical overview of press and form tool design
Highlighting of the importance of theories of failure in the study of plastic flow of metals
An appreciation of the effects of changes within the microstructure on the macrostructure of metals
Provision of an overview of the technology and risks associated with metal forming equipment
Presentation of a general introduction geometric tolerancing
Metal cutting technology
Layout and design techniques for fixed configuration press tools. Determination of forces required to cut given
geometric profiles, methods of force reduction. Methods of moment balancing. Tool configuration for CNC
punch
presses, description of and advantages of CNC punch presses, CNC punch pressing techniques, CNC press
programming, sheet metal CNC punch press practical laboratory.
Metal forming technology
Metal bending, description of tooling / end effectors used in metal air bending and coining. Description of press
brakes and associated technology, including CNC control. Determination of forces to initiate bending in specific
circumstances. Bend allowance and bend deduction, determination of part profiles. Metal forming, including
method of determination of blank diameters and press forces for specific geometry. Metal forming tool
configurations.
Work hardening of metals
Review of causes of work hardening in metals. Fundamentals of plasticity, including plastic instability. Use of
theories of failure in determination of onset of yield. The true stress – true strain curve, strength co-efficient k
and
work hardening co-efficient n. Models of elasto-plastic behaviour.
Commercial testing of sheet metals
Plastic ratio, grid circle analysis, forming limit diagrams, commercial tests.
Geometric tolerancing
Purpose of geometric tolerancing systems, comparison and contrast of standard dimensional tolerancing with true position system. Fixed and floating fastener methods, determination of required hole and fastener dimensions.
The module will be delivered to the learner in the form of a series of lectures and laboratories. The coursematerial will be available to the learner via Brightspace or equivalent.
| Module Content & Assessment | |
|---|---|
| Assessment Breakdown | % |
| Formal Examination | 70 |
| Other Assessment(s) | 30 |