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Isothermal closed-die forming process of magnesium alloy upper receiver: numerical simulation and experiments

  • Qiang Chen
  • Xiaohua Zhang
  • Jun Lin
  • Hong Zhan
  • Zude Zhao
  • Zhiwen Xie
  • Baoguo Yuan
ORIGINAL ARTICLE
  • 12 Downloads

Abstract

An isothermal closed-die forming process, including two forging procedures in which the female die of the final forging procedure is split into two parts, was developed, and a very complex component of magnesium alloy called the upper receiver was successfully produced. The obtained forged piece has higher mechanical properties and meets the standard of being safely used in special machines. Based on the FORGE software platform, finite element (FE) simulation was used to determine the preform shape, processing parameters, and forging procedure. A closed-die cavity was formed during the final forging procedure, which can effectively enhance the workability of magnesium alloy, refine the grain sizes, and increase the strength of the component. Importantly, the forged piece has homogeneous microstructures, and the ultimate tensile strength located at the lateral and bottom positions of the upper receiver is greater than 396 MPa and the minimum of the elongation ratio at fracture is 15%.

Keywords

Closed-die forming process Magnesium alloys Finite element simulation Upper receiver 

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Notes

Acknowledgements

This project is supported by National Natural Science Foundation of China (Grant No. 51822509).

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.Southwest Technology and Engineering Research InstituteChongqingPeople’s Republic of China
  2. 2.School of Materials Science and EngineeringHarbin University of Science and TechnologyHarbinPeople’s Republic of China
  3. 3.University of Science and Technology LiaoningAnshanPeople’s Republic of China
  4. 4.School of Materials Science and EngineeringHefei University of TechnologyHefeiPeople’s Republic of China

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