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Successful research project: Using simulation as a way to forecast the stability of machining processes

As a result of participating in the VispaB research project (Virtualisation of machining processes in machine development and process optimisation) sponsored by the BMBF (Federal Ministry of Education and Research), Gebr. Heller Maschinenfabrik GmbH, being one of the project's initiators and co-ordinating research partner, has expanded its core competencies in the field of simulation.

Based on the research results, it will now be possible to directly calculate the maximum process-stable cutting depth over the tool and spindle speed range of specific processes under consideration of the overall process and machine dynamics. This is achieved by means of a so-called stability card. Compared to the method of interpreting simulated compliance frequency responses with regard to cutting capacity difficult to implement in practice, this newly developed solution represents a quantum leap.

Based on the stability card calculation, HELLER has established a new simulation chain designed to enable direct identification of machine components possibly responsible for chatter vibrations on the basis of the simulation results. Since the resulting design measures can be taken into consideration early on in the development of a machine tool, this solution provides a very cost-effective way of optimising the technical characteristics of the machine. Additionally, the simulation data help to determine concrete measures aimed to stabilise the process.

The final colloquium of the VispaB research project including numerous interesting lectures by all project partners will be held in Aachen on 18 October, 9.00 a.m. The colloquium will take place at the machine tool laboratory of RWTH Aachen.

All interested parties are cordially invited to attend. Advance registration is requested.

For agenda and further information contact:


Address Heller Machine Tools

Heller Machine Tools Ltd
Acanthus Road, Ravensbank Business Park
Redditch, Worcestershire B98 9EX
Tel: +44 (0) 121 275 3300
Fax:+44 (0) 121 275 3380

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