Linear friction welding (LFW) is a solid-state welding process and its initial purpose lies solely on the production of “blisks” for the aerospace industry. However, in recent years, the usability of LFW has expanded and gained the interest from various industries regarding near-net-shapes. Also in chain manufacturing, LFW has acquired interest over the more common flash butt welding (FBW) process. In this work, numerical modelling is used to study and understand the mechanisms responsible for the flash formation in a 30CrNiMo8 high strength steel chain. To that end, 2D computational modelling was considered using the finite element analysis (FEA) software DEFORM and was divided into two distinct approaches: a purely thermal model and a plastic flow model. Temperature measurements were carried out to validate the model and self-cleaning ability of the process was analyzed.
The International Journal of Advanced Manufacturing Technology – Springer Journals
Published: Apr 3, 2017
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