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Engineering Application and Prospect of Aluminum-Lithium Alloy Sheet in Domestic Aviation Field(PDF)

MATERIALS CHINA[ISSN:1674-3962/CN:61-1473/TG]

Issue:
2025年02
Page:
193-198
Research Field:
Publishing date:

Info

Title:
Engineering Application and Prospect of Aluminum-Lithium Alloy Sheet in Domestic Aviation Field
Author(s):
ZHENG HaoYANG JianKOU Feixing
The First Aircraft Institute, Aviation Industry Corporation of China, Xi’an 710089, China
Keywords:
Al-Li alloy aviation sheet application manufacturing technology
CLC:

PACS:
TG146.21
DOI:
10.7502/j.issn.1674-3962.202302023
DocumentCode:

Abstract:
Aluminum-lithium alloy has high specific strength, high specific stiffness and excellent damage-tolerance. It has the potential to replace 2××× and 7××× aluminum alloys in the aerospace field, and provides high weight loss benefits in the aircraft design. Aluminum-lithium alloy has attracted much attention in the aircraft material selection. In this paper, we introduce the development history, main characteristics and application parts of various aluminum-lithium alloy sheets for aircraft and parts manufacturing in China, and illustrate the application status of aluminum-lithium alloy sheet in domestic mainframe factory, including the existing problems in the current application, especially the difficulties in the manufacturing process. The advanced manufacturing technology of aluminum-lithium alloy parts at home and abroad is listed from the angle of aircraft material selection. Finally, the future research and development of aluminum-lithium alloy in China are prospected. It provides a reference for the application research of aluminum-lithium alloy for aviation field in the future.

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Last Update: 2025-01-21