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1 Journal of Machine Engineering

1 2011

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Procedure to improve the understanding of the rotating straightening process

Kreiseler G., Siegert J., Westkämper E.

Journal of Machine Engineering

2011

Vol. 11, No. 1-2

5--10

In industry wire is used for great variety of applications, such as cables, springs or nails. For many applications straight wires are necessary, e.g. shopping trolleys, dishwasher baskets or construction steel. Besides straightness these products demand specific characteristics such as the structure of the metal or the residual stress.After being produced, wire is normally coiled up for better handling. For the following production process the wire has to be straightened and cut into pieces. Therefore, different technical processes such as roll straightening, straightening by stretching or rotating straightening are possible.Rotating straightening with its special characteristics is one of the least known straightening processes in science. At the time being, skilled experienced workers are necessary to adjust and control the process. For a scientific description of rotating straightening, parameters have to be identified. After defining such parameters, they are then used to assess the different settings of a rotating straightening machine in order to explain the physics of the process. Another possibility to describe the physics of the process would be through a model. All of this should make it possible to predict the quality of wire after straightening, reduce waste wire and accelerate the ramp up.