Effect of back pressure on quick gas blow forming for AZ31 magnesium alloy sheet

Ling Jiang Cui; Gang Wang; Cheng Bo Liu

doi:10.3969/j.issn.1007-2012.2012.06.009

Effect of back pressure on quick gas blow forming for AZ31 magnesium alloy sheet

Ling Jiang Cui^*
, Gang Wang
, Cheng Bo Liu

^*Corresponding author for this work

School of Materials Science and Engineering, Harbin Institute of Technology Weihai

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

Abstract

The effects of back pressure on volume fraction of cavity, bulging height and wall thickness distribution during free bulging were studied through quick gas blow forming tests of AZ31 magnesium alloy rolled sheet. Experimental results showed that under the forming temperature of 350°C, the volume fraction of cavity was 21% and 16% respectively at the dome with back pressure and no back pressure. If the strain was same, the volume fraction of as-formed part with back pressure was smaller than that with no back pressure. Loading of back pressure could reduce effectively the volume fraction of sheet material, and increase the bulging height and thus forming limit.

Original language	English
Pages (from-to)	45-49
Number of pages	5
Journal	Suxing Gongcheng Xuebao/Journal of Plasticity Engineering
Volume	19
Issue number	6
DOIs	https://doi.org/10.3969/j.issn.1007-2012.2012.06.009
State	Published - Dec 2012
Externally published	Yes

Keywords

Back pressure
Cavity
Forming limit
Quick gas blow forming

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10.3969/j.issn.1007-2012.2012.06.009

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title = "Effect of back pressure on quick gas blow forming for AZ31 magnesium alloy sheet",

abstract = "The effects of back pressure on volume fraction of cavity, bulging height and wall thickness distribution during free bulging were studied through quick gas blow forming tests of AZ31 magnesium alloy rolled sheet. Experimental results showed that under the forming temperature of 350°C, the volume fraction of cavity was 21\% and 16\% respectively at the dome with back pressure and no back pressure. If the strain was same, the volume fraction of as-formed part with back pressure was smaller than that with no back pressure. Loading of back pressure could reduce effectively the volume fraction of sheet material, and increase the bulging height and thus forming limit.",

keywords = "Back pressure, Cavity, Forming limit, Quick gas blow forming",

author = "Cui, \{Ling Jiang\} and Gang Wang and Liu, \{Cheng Bo\}",

year = "2012",

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doi = "10.3969/j.issn.1007-2012.2012.06.009",

language = "英语",

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TY - JOUR

T1 - Effect of back pressure on quick gas blow forming for AZ31 magnesium alloy sheet

AU - Cui, Ling Jiang

AU - Wang, Gang

AU - Liu, Cheng Bo

PY - 2012/12

Y1 - 2012/12

N2 - The effects of back pressure on volume fraction of cavity, bulging height and wall thickness distribution during free bulging were studied through quick gas blow forming tests of AZ31 magnesium alloy rolled sheet. Experimental results showed that under the forming temperature of 350°C, the volume fraction of cavity was 21% and 16% respectively at the dome with back pressure and no back pressure. If the strain was same, the volume fraction of as-formed part with back pressure was smaller than that with no back pressure. Loading of back pressure could reduce effectively the volume fraction of sheet material, and increase the bulging height and thus forming limit.

AB - The effects of back pressure on volume fraction of cavity, bulging height and wall thickness distribution during free bulging were studied through quick gas blow forming tests of AZ31 magnesium alloy rolled sheet. Experimental results showed that under the forming temperature of 350°C, the volume fraction of cavity was 21% and 16% respectively at the dome with back pressure and no back pressure. If the strain was same, the volume fraction of as-formed part with back pressure was smaller than that with no back pressure. Loading of back pressure could reduce effectively the volume fraction of sheet material, and increase the bulging height and thus forming limit.

KW - Back pressure

KW - Cavity

KW - Forming limit

KW - Quick gas blow forming

UR - https://www.scopus.com/pages/publications/84871873072

U2 - 10.3969/j.issn.1007-2012.2012.06.009

DO - 10.3969/j.issn.1007-2012.2012.06.009

M3 - 文章

AN - SCOPUS:84871873072

SN - 1007-2012

VL - 19

SP - 45

EP - 49

JO - Suxing Gongcheng Xuebao/Journal of Plasticity Engineering

JF - Suxing Gongcheng Xuebao/Journal of Plasticity Engineering

IS - 6

ER -

Effect of back pressure on quick gas blow forming for AZ31 magnesium alloy sheet

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Keywords

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