Bending forming of lightweight large diameter thin-walled aluminum alloy aviation tube

Lanfang Jiang, Yichao Zhang, Wei Li, Shuyou Zhang, Heng Li, An Zhu

Research output: Contribution to journalArticlepeer-review

Abstract

To improve the forming quality of lightweight aviation tubes, the influence of different tube specifications, forming requirements and process parameters on bending forming of large diameter thin-walled (LDTW) LF2M aluminum alloy tubes (AATs) was studied. A finite element analysis model for LDTW AAT bending was established and verified. The results show that with the increase of mandrel extension length em, the wall-thinning ratio tends to increase. With the increase of em, the overall wall-thickening ratio decreases. With the increase of em, the ovality decreases first and then increases. The bending radius has a great influence on wall thickness variation. It has great significance to guide the bending forming of lightweight LDTW aluminum alloy aviation tube.

Original languageEnglish
Article number2442012
JournalModern Physics Letters B
Volume39
Issue number6
DOIs
StatePublished - 28 Feb 2025

Keywords

  • Large diameter thin-walled tube
  • mandrel extension
  • rotary drawing bending

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