Synonyms
Definition
“Upset bulging” is a tensile-compressive forming process defined by DIN 8584-6 (2003). An axial compression load is usually applied to a rotation-symmetric workpiece (e.g., tubes) by forming tools to create a revolving bulge. These bulges are used to clamp a joining partner (e.g., sheet metal) in-between, thus creating an inseparable joint. This joining by forming process is defined by DIN 8593-5 (2003) and called “joining by upset bulging.”
Theory and Application
Introduction
Joining by upset bulging is a mechanical joining process, which is commonly used to create joints with a form and force fit between tubes and other structures, such as sheets, plates, tubes, or profiles. Such processes are necessary to fulfill the growing demands on industrial production of multi-material joints and general lightweight production. In particular, conventional fusion welding processes reach their limits due to high heat input...
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References
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Acknowledgment
The authors are thankful to the industrial research association “Otto von Guericke” e.V. (AiF) for funding the research project “Joining by upset bulging” and for providing the opportunity to realize the experimental investigation. The IGF-project 17312 “Joining by upset bulging” of European Research Association for sheet metal working (EFB) was sponsored through AiF (the German Federation of Industrial Research Associations) in the scope to promote the common industrial research (IGF) under the Federal Ministry of Economics and Technology according to a decision of the German Federal parliament.
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Bambach, M., Behrens, BA., Sviridov, A., Rusch, M., Almohallami, A. (2019). Joining by Upset Bulging. In: Chatti, S., Laperrière, L., Reinhart, G., Tolio, T. (eds) CIRP Encyclopedia of Production Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-53120-4_16858
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DOI: https://doi.org/10.1007/978-3-662-53120-4_16858
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