Abstract
The expansion of tubes by direct application of gas detonation waves or electromagnetic forming (EMF) is an alternative forming method for hollow section workpieces. In particular, the process can be used for typical hydro-formed parts, car body or exhaust elements in the automotive industry, for example. The introduced processes belong to the category of high speed forming methods and provide typical advantages, such as higher achievable strains, compared to quasistatic methods using high water pressure. Another advantage of these processes is the avoidance of high contact forces by employing an “inertia-locked tool” system due to the extremely short process time. To develop a controllable process it is essential to gain a good knowledge of the interactions in the system. This can be achieved by using simulations in combination with experimental investigations; their results are the topic of this paper. Also included are special investigations of the material behavior at high strain rates.
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Bach, F.W., Kleiner, M., Tekkaya, A.E. (2013). Investigation of the Complex Interactions during Impulse Forming of Tubular Parts. In: Denkena, B., Hollmann, F. (eds) Process Machine Interactions. Lecture Notes in Production Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32448-2_23
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DOI: https://doi.org/10.1007/978-3-642-32448-2_23
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