Numerical analysis of thermo-mechanical behavior in flow forming


GÜNAY E., Fenercioglu T. O. , YALÇINKAYA T.

2nd International Workshop on Plasticity, Damage and Fracture of Engineering Materials, IWPDF 2021, Ankara, Turkey, 18 - 20 August 2021, vol.35, pp.42-50 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 35
  • Doi Number: 10.1016/j.prostr.2021.12.046
  • City: Ankara
  • Country: Turkey
  • Page Numbers: pp.42-50
  • Keywords: Finite element method, Flow forming, Incremental forming, Thermo-mechanical modeling

Abstract

© 2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of IWPDF 2021 Chair, Tuncay YalçinkayaFlow forming is a metal forming process for cylindrical workpieces where high velocity deformation leads to radial thinning and axial extension. In the current study, a thermomechanical, dynamic and explicit finite element model of a flow forming process is developed on ABAQUS software. The model is validated through the comparison of reaction forces and geometry obtained from the experiments. Coolant convection effect is analyzed in conjunction with roller and mandrel conduction cooling to study the thermal variations in the deformation zone during the process. The methodology detailed in this study facilitates a deeper understanding of the evolution of heat during the flow forming process and lays the groundwork for further exploration into the possible role of a material's thermal properties in the definition of flow formability.