Analysis of springback characteristics of magnesium alloy sheet (AZ31B) considering time-dependence in warm bending

Jae Hyeong Yu; Chang Whan Lee

doi:10.7736/JKSPE.019.106

Analysis of springback characteristics of magnesium alloy sheet (AZ31B) considering time-dependence in warm bending

Jae Hyeong Yu, Chang Whan Lee

Dept. of Mechanical System and Design Engineering

Seoul National University of Science and Technology (SNUST)

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The purpose of this study was to investigate the springback behavior of magnesium alloy (AZ31B) at high temperature with respect to the holding time in the die-set. The changes of microstructure in the springback during V-Bending were analyzed. The springback of the magnesium alloy sheet showed a tendency to decrease as the forming temperature and the retention time in the die increase. In the microstructure analysis, there was minimal change in the microstructure at room temperature, while at high temperature the microstructure changed markedly. The increasing material holding time in die has been shown to reduce springback from internal energy reduction because of recrystallization and grain growth at high temperature.

Original language	English
Pages (from-to)	201-207
Number of pages	7
Journal	Journal of the Korean Society for Precision Engineering
Volume	37
Issue number	3
DOIs	https://doi.org/10.7736/JKSPE.019.106
State	Published - Mar 2020

Keywords

Magnesium alloy sheet (AZ31B)
Microstructure
Spring-back
Time-dependent
Warm forming

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10.7736/JKSPE.019.106

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title = "Analysis of springback characteristics of magnesium alloy sheet (AZ31B) considering time-dependence in warm bending",

abstract = "The purpose of this study was to investigate the springback behavior of magnesium alloy (AZ31B) at high temperature with respect to the holding time in the die-set. The changes of microstructure in the springback during V-Bending were analyzed. The springback of the magnesium alloy sheet showed a tendency to decrease as the forming temperature and the retention time in the die increase. In the microstructure analysis, there was minimal change in the microstructure at room temperature, while at high temperature the microstructure changed markedly. The increasing material holding time in die has been shown to reduce springback from internal energy reduction because of recrystallization and grain growth at high temperature.",

keywords = "Magnesium alloy sheet (AZ31B), Microstructure, Spring-back, Time-dependent, Warm forming",

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AU - Yu, Jae Hyeong

AU - Lee, Chang Whan

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N2 - The purpose of this study was to investigate the springback behavior of magnesium alloy (AZ31B) at high temperature with respect to the holding time in the die-set. The changes of microstructure in the springback during V-Bending were analyzed. The springback of the magnesium alloy sheet showed a tendency to decrease as the forming temperature and the retention time in the die increase. In the microstructure analysis, there was minimal change in the microstructure at room temperature, while at high temperature the microstructure changed markedly. The increasing material holding time in die has been shown to reduce springback from internal energy reduction because of recrystallization and grain growth at high temperature.

AB - The purpose of this study was to investigate the springback behavior of magnesium alloy (AZ31B) at high temperature with respect to the holding time in the die-set. The changes of microstructure in the springback during V-Bending were analyzed. The springback of the magnesium alloy sheet showed a tendency to decrease as the forming temperature and the retention time in the die increase. In the microstructure analysis, there was minimal change in the microstructure at room temperature, while at high temperature the microstructure changed markedly. The increasing material holding time in die has been shown to reduce springback from internal energy reduction because of recrystallization and grain growth at high temperature.

KW - Magnesium alloy sheet (AZ31B)

KW - Microstructure

KW - Spring-back

KW - Time-dependent

KW - Warm forming

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DO - 10.7736/JKSPE.019.106

M3 - Article

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JO - Journal of the Korean Society for Precision Engineering

JF - Journal of the Korean Society for Precision Engineering

IS - 3

ER -

Analysis of springback characteristics of magnesium alloy sheet (AZ31B) considering time-dependence in warm bending

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Keywords

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