Material behavior and formability of magnesium AZ31 sheet alloy under warm hydroforming conditions

Sasawat Mahabunphachai, Muammer Koç

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this study, a hydraulic bulge test setup was developed to conduct biaxial material tests with continuous and in-line pressure and non-contact dome height measurement capabilities. Several hydraulic bulge tests were performed to investigate the material behavior of Mg AZ31B-O sheet alloy at elevated temperature levels of 100, 200, and 300°C, and at two different strain rate levels of 0.0013 and 0.013 s-1. Based on the bulge test results, flow curves as a function of strain, strain rate and temperature were then established. The flow curves were found to decrease significantly with increasing temperature and decreasing strain rate. In the second stage of this study, closed-die warm hydroforming experiments were conducted to determine the forming limits in terms of achievable smallest corner radii, highest strain, and part height without failure. The 2D and 3D profiles of the hydroformed parts were measured using stereoscopic CCD cameras. The formability (i.e., die filling, part height, and corner radii) of the magnesium sheet was found to be significantly increased with increasing temperature.

Original languageEnglish
Pages (from-to)105-109
Number of pages5
JournalMaterials Forum
Volume34
Publication statusPublished - 2008
Externally publishedYes

Fingerprint

hydroforming
Formability
Magnesium
magnesium
strain rate
Strain rate
hydraulics
Hydraulics
materials tests
Temperature
radii
temperature
Domes
curves
CCD cameras
domes
profiles
Experiments

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Material behavior and formability of magnesium AZ31 sheet alloy under warm hydroforming conditions. / Mahabunphachai, Sasawat; Koç, Muammer.

In: Materials Forum, Vol. 34, 2008, p. 105-109.

Research output: Contribution to journalArticle

@article{c9bec06b62744482a7054a5c1f6deafa,
title = "Material behavior and formability of magnesium AZ31 sheet alloy under warm hydroforming conditions",
abstract = "In this study, a hydraulic bulge test setup was developed to conduct biaxial material tests with continuous and in-line pressure and non-contact dome height measurement capabilities. Several hydraulic bulge tests were performed to investigate the material behavior of Mg AZ31B-O sheet alloy at elevated temperature levels of 100, 200, and 300°C, and at two different strain rate levels of 0.0013 and 0.013 s-1. Based on the bulge test results, flow curves as a function of strain, strain rate and temperature were then established. The flow curves were found to decrease significantly with increasing temperature and decreasing strain rate. In the second stage of this study, closed-die warm hydroforming experiments were conducted to determine the forming limits in terms of achievable smallest corner radii, highest strain, and part height without failure. The 2D and 3D profiles of the hydroformed parts were measured using stereoscopic CCD cameras. The formability (i.e., die filling, part height, and corner radii) of the magnesium sheet was found to be significantly increased with increasing temperature.",
author = "Sasawat Mahabunphachai and Muammer Ko{\cc}",
year = "2008",
language = "English",
volume = "34",
pages = "105--109",
journal = "Materials Forum",
issn = "0883-2900",
publisher = "Institute of Metals and Materials Australasia",

}

TY - JOUR

T1 - Material behavior and formability of magnesium AZ31 sheet alloy under warm hydroforming conditions

AU - Mahabunphachai, Sasawat

AU - Koç, Muammer

PY - 2008

Y1 - 2008

N2 - In this study, a hydraulic bulge test setup was developed to conduct biaxial material tests with continuous and in-line pressure and non-contact dome height measurement capabilities. Several hydraulic bulge tests were performed to investigate the material behavior of Mg AZ31B-O sheet alloy at elevated temperature levels of 100, 200, and 300°C, and at two different strain rate levels of 0.0013 and 0.013 s-1. Based on the bulge test results, flow curves as a function of strain, strain rate and temperature were then established. The flow curves were found to decrease significantly with increasing temperature and decreasing strain rate. In the second stage of this study, closed-die warm hydroforming experiments were conducted to determine the forming limits in terms of achievable smallest corner radii, highest strain, and part height without failure. The 2D and 3D profiles of the hydroformed parts were measured using stereoscopic CCD cameras. The formability (i.e., die filling, part height, and corner radii) of the magnesium sheet was found to be significantly increased with increasing temperature.

AB - In this study, a hydraulic bulge test setup was developed to conduct biaxial material tests with continuous and in-line pressure and non-contact dome height measurement capabilities. Several hydraulic bulge tests were performed to investigate the material behavior of Mg AZ31B-O sheet alloy at elevated temperature levels of 100, 200, and 300°C, and at two different strain rate levels of 0.0013 and 0.013 s-1. Based on the bulge test results, flow curves as a function of strain, strain rate and temperature were then established. The flow curves were found to decrease significantly with increasing temperature and decreasing strain rate. In the second stage of this study, closed-die warm hydroforming experiments were conducted to determine the forming limits in terms of achievable smallest corner radii, highest strain, and part height without failure. The 2D and 3D profiles of the hydroformed parts were measured using stereoscopic CCD cameras. The formability (i.e., die filling, part height, and corner radii) of the magnesium sheet was found to be significantly increased with increasing temperature.

UR - http://www.scopus.com/inward/record.url?scp=84860829660&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84860829660&partnerID=8YFLogxK

M3 - Article

VL - 34

SP - 105

EP - 109

JO - Materials Forum

JF - Materials Forum

SN - 0883-2900

ER -