Page 19 - ITAtube Journal 1 2022

Fig. 6 Purpose designed drawings to match Spreadsheet and CAD files
together clear the die profile by the spec- ified amount when the dies are in the ET position at the entry end. This is quite tricky to calculate with certainty. In Fig 5. the clearance shows up as a white circle in the centre of the left CAD drawing.
And Finally
Many readers will be aware that Finite Element Analysis can play an important role in processes involving metal deforma- tion. Promet Consulting Ltd had a plan pre COVID to make this a reality but unfortu- nately it has been delayed.
More accurate predictions of forces, heat ‘build up’, peak pressure points would certainly be advantageous but all the issues dealt with in this report would be needed to produce viable reductions to try and to provide accurate measurements of forces and roll separations to validate results.
None Linear FEA then can be brought to bear on cold pilgering but issues with very large mesh sizes have limited its use due
to cost and time constraints. However, the project was planned to use AI to learn the effects of key variables. As the artificial intelligence developed its predictions would become increasingly reliable and the com- putational time used in problem solving would be minimal. The system described in this article can be used to rapidly develop and change parameters to input into the FEA Model.
ITAtube Journal April 2022
Fig. 7 Typical non-linear FEA analysis of Pilger tooling
Commercial Note
Promet Consulting Ltd has now been developing the files needed for designing high performance Pilger dies for many years. These files have developed over time which has enabled customers to have the files at very reasonable rates while they have been developed. This initial develop- ment is nearing the end and a suit of files is essentially complete but continual devel- opment is unlikely to end any time soon. In helping customers to optimise their reduc- tions Promet Consulting Ltd has inevitably acquired some of its customers intellectual property. There may be some potential customers that the company will have
to decline to work with due to conflicts
of interest but this will depend on many factors. Sometimes materials and reduc- tions can be the same but markets radically different for example.
A group of companies where competition is negligible or very little is ideal for driving forward development and spreading the cost of key projects.
Technical Papers
Andrew Houghton Promet Consulting Ltd
Glenmoor, Warran Lane
PL19 9DB Tavistock, Devon UK
Tel: +44 (0) 787245 5550
Andy@prometconsulting.co.uk www.prometconsulting.co.uk
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