Abstract
Axial rotary forging, as local methods of metal forming, allows expanding opportunities of technological processes at smaller power equipment. This paper studies the processes of axial rotary forging for manufacturing of different parts from tube-blanks on machines that are used for forming a conical roll with angle of inclination 10–25° or two cylindrical rolls, i.e. rolls with tilt 90° to the axis of the blank. Possibilities of rotary forging are limited due loss of stability of tube-blanks which happened during forming of wide and thick flanges. However, there are not too many ways to control metal flow in this process. It is considered the main factor in determining the direction of flow of metal that produces friction force on the contact surface of formed metal with forging rolls. Direction of this force can be changed by the position of forming rolls with respect to the blank. The technology of axial rotary forging with displaced forming rolls provides a stable forming process of wide collars and thick flanges.
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Acknowledgements
This research was sponsored by company “JA-RO AB” (Finland).
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Aksenov, L.B., Kunkin, S.N. (2016). Metal Flow Control at Processes of Cold Axial Rotary Forging. In: Evgrafov, A. (eds) Advances in Mechanical Engineering. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-29579-4_18
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DOI: https://doi.org/10.1007/978-3-319-29579-4_18
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