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Abstract <p>This article presents the results of studying the nature of metal flow in the manufacture of aircraft panels and shells from various aluminum alloys (AMg3, AMg6, AK6, AK8, V95, V96Ts, alloy 01420). Optimum temperature and speed modes of deformation during isothermal stamping are determined for maximum reduction in the thickness of the original blanks in order to increase the metal utilization factor MUF and guarantee production of defect-free products. Mechanisms of formation of such shape defects occurring during the manufacture of aircraft panels by isothermal stamping as shrinkage depression on the panel web back side in the subrib space, rupture of the material of the product in the area of articulation of the rib and the panel web at the final stages of deformation, formation of a clamp on the lateral surface of the rib, and the appearance of oxide films drawn into the body of the product in the central part of the rib are analyzed. The dependences of the formation of these defects on the conditions of temperature and speed parameters of the deformation process are analyzed. Mathematical models of the nature of metal flow when filling the die cavity at various temperature and speed parameters of deformation using the QForm software product have been constructed. Optimal temperature–speed modes of deformation have been determined.</p>

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Analysis of the Nature of Metal Flow in the Manufacture of Aircraft Panels from Various Groups of Aluminum Alloys Using Isothermal Stamping Methods

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • M. V. Zharov

摘要

Abstract

This article presents the results of studying the nature of metal flow in the manufacture of aircraft panels and shells from various aluminum alloys (AMg3, AMg6, AK6, AK8, V95, V96Ts, alloy 01420). Optimum temperature and speed modes of deformation during isothermal stamping are determined for maximum reduction in the thickness of the original blanks in order to increase the metal utilization factor MUF and guarantee production of defect-free products. Mechanisms of formation of such shape defects occurring during the manufacture of aircraft panels by isothermal stamping as shrinkage depression on the panel web back side in the subrib space, rupture of the material of the product in the area of articulation of the rib and the panel web at the final stages of deformation, formation of a clamp on the lateral surface of the rib, and the appearance of oxide films drawn into the body of the product in the central part of the rib are analyzed. The dependences of the formation of these defects on the conditions of temperature and speed parameters of the deformation process are analyzed. Mathematical models of the nature of metal flow when filling the die cavity at various temperature and speed parameters of deformation using the QForm software product have been constructed. Optimal temperature–speed modes of deformation have been determined.