Analysis of room-temperature stamping formability of complex features of AZ31 magnesium alloy variable-curvature plate shell

The forming properties of AZ31 magnesium alloy plates were obtained by tensile tests, using Autoform software to simulate the room-temperature stamping process of AZ31 magnesium alloy. And orthogonal experiments were explored on the variable-curvature plate shell parts of AZ31 magnesium alloy in ord...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology 2022-12, Vol.123 (9-10), p.3159-3169
Main Authors: Wang, Hengtao, Ma, Lifeng, Jia, Weitao, Xie, Hongbo, Lu, Liwei
Format: Article
Language:English
Subjects:
Blankholders
CAE) and Design
Coefficient of friction
Computer-Aided Engineering (CAD
Curvature
Engineering
Formability
Industrial and Production Engineering
Magnesium alloys
Magnesium base alloys
Mathematical analysis
Mechanical Engineering
Media Management
Metal plates
Original Article
Room temperature
Stamping
Stress concentration
Tensile tests
Thinning
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Summary:The forming properties of AZ31 magnesium alloy plates were obtained by tensile tests, using Autoform software to simulate the room-temperature stamping process of AZ31 magnesium alloy. And orthogonal experiments were explored on the variable-curvature plate shell parts of AZ31 magnesium alloy in order to investigate the influence of various forming parameters. The conditions of 14.41% sufficient forming with blank-holder force, clearance between punch and die, the resistance coefficient of drawbead, and the coefficient of friction were clarified. The results suggest that the blank-holder force plays a preponderant role in the maximum thinning rate of the room-temperature stamping formability of AZ31. Additionally, the study found that the curvature of the punch radius is negatively associated with the average thinning rate. In order to promote the flow of metal around the punch radius and to improve the forming uniformity and ultimate forming depth, it is necessary to reduce the curvature of the punch radius to reduce the stress concentration at the punch radius.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-022-10412-y