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

IF 1.8 4区物理与天体物理 Q3 PHYSICS, APPLIED Modern Physics Letters B Pub Date : 2024-05-28 DOI:10.1142/s0217984924420120

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

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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 $e_{m}$ , the wall-thinning ratio tends to increase. With the increase of $e_{m}$ , the overall wall-thickening ratio decreases. With the increase of $e_{m}$ , 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.

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轻质大直径薄壁铝合金航空管的弯曲成形

为提高轻质航空管材的成形质量，研究了不同管材规格、成形要求和工艺参数对大直径薄壁（LDTW）LF2M 铝合金管材（AAT）弯曲成形的影响。建立并验证了 LDTW AAT 弯曲的有限元分析模型。结果表明，随着心轴延伸长度 em 的增加，薄壁率呈上升趋势。随着 em 的增加，整体壁厚比减小。随着 em 的增加，椭圆度先减后增。弯曲半径对壁厚变化有很大影响。这对指导轻质 LDTW 铝合金航空管的弯曲成形具有重要意义。

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来源期刊

Modern Physics Letters B 物理-物理：凝聚态物理

CiteScore

3.70

自引率

10.50%

发文量

235

审稿时长

5.9 months

期刊介绍： MPLB opens a channel for the fast circulation of important and useful research findings in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low-dimensional materials. The journal also contains a Brief Reviews section with the purpose of publishing short reports on the latest experimental findings and urgent new theoretical developments.