Tensile Properties and Shallow Pan Rapid Gas Blow Forming of Commercial Fine-grained Mg Alloy AZ31B Thin Sheet

Wu, Horng-yu; Sun, Pin-Hou; Zhu, Feng-Jun; Liu, Hsu-Cheng; Chiu, Chien‐Liang

doi:10.1016/j.proeng.2012.03.048

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…Boissiere et al [ 4 ] discussed some similarities and differences between QPF and SPF and pointed out that the deformation mechanism for QPF was viscous glide controlling dislocation creep and the deformation mechanism for SPF was grain boundary sliding. Wu et al [ 5 ] performed tensile tests and shallow pan rapid gas blow forming to explore the deformation behavior of AZ31B Mg alloy sheet and found that the fillet radius of the rectangular pan to be one of the key factors influencing forming time on closed die gas blow forming. The HMGF process is mainly used to form tubular components.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with SPF, QPF and HMGF can shorten the cycle time greatly due to the higher strain rate (usually between 0.001–0.01 s −1 ). Aluminum and magnesium alloys are mainly used in the two pneumatic forming processes and the forming pressure is usually lower than 10 MPa [ 2 , 3 , 4 , 5 , 6 , 7 ]. For titanium components, SPF is mainly used to form them.…”

Section: Introductionmentioning

confidence: 99%

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High Pressure Pneumatic Forming of Ti-3Al-2.5V Titanium Tubes in a Square Cross-Sectional Die

et al. 2014

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Abstract:A new high strain rate forming process for titanium alloys is presented and named High Pressure Pneumatic Forming (HPPF), which might be applicable to form certain tubular components with irregular cross sections with high efficiency, both with respect to energy cost and time consumption. HPPF experiments were performed on Ti-3Al-2.5V titanium alloy tubes using a square cross-sectional die with a small corner radius. The effects of forming of pressure and temperature on the corner filling were investigated and the thickness distributions after the HPPF processes at various pressure levels are discussed. At the same time, the stress state, strain and strain rate distribution during the HPPF process were numerically analyzed by the finite element method. Microstructure evolution of the formed tubes was also analyzed by using electron back scattering diffraction (EBSD). Because of different stress states, the strain and strain rate are very different at different areas of the tube during the corner filling process, and consequently the microstructure of the formed component is affected to some degree. The results verified that HPPF is a potential technology to form titanium tubular components with complicated geometrical features with high efficiency. OPEN ACCESSMaterials 2014, 7 5993 Keywords: high pressure pneumatic forming (HPPF); corner filling; strain rate sensitivity; electron back scattering diffraction (EBSD)

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High Pressure Pneumatic Forming of Ti-3Al-2.5V Titanium Tubes in a Square Cross-Sectional Die

et al. 2014

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“…Forming of magnesium sheet are typically performed by superplastic forming at high temperature of 673 K [147,148,204] or by hot stamping which requires the tools and part to be heated to as high as 723 K [205] in order to produce parts of medium to high complexity. This greatly increases the processing cost, productivity and lubrication challenges.…”

Section: Further Studies On Superplasticity Behaviour Through Spdmentioning

confidence: 99%

“…For more complex panels shape forming, superplastic forming is commonly employed. This process is typically performed at above 623 K where additional deformation mechanism by grain-boundary-sliding (GBS) can occur [147,148] to bring about a significant enhancement of formability. Forming of magnesium sheet at high temperature escalates the manufacturing cost because of various reasons such as complex heating system, slow cycle time, high energy consumption, and the need to remove solid lubricant after forming operation.…”

Section: Introductionmentioning

confidence: 99%

High toughness magnesium alloy through severe plastic deformation and short annealing

Fong¹

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This thesis represents a body of work that was achieved with the assistance, guidance and support of several people. I consider it an immense privilege to have worked with them. First of all, I would like to express my sincere gratitude to my supervisor, Prof. Tan Ming Jen for his kind guidance, critique, support and encouragement throughout my PhD study. I am also grateful to my co-supervisor and team leader, Dr Chua Beng Wah for his support, motivation and providing me with the framework and freedom in pursuing my research. It has been interesting working under their supervisions which benefited me not only in my research and also in my personal life. I am greatly thankful for all professional support and help I received from Dr Danno Atsushi in SIMTech. His tireless support at the beginning of and during my research had helped me to shape my research outcome. I am very grateful to have the opportunity to collaborate with Dr

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Modified male die rapid gas blow forming of fine-grained Mg alloy AZ31B thin sheet

Tzou

Huang

et al. 2015

Int J Adv Manuf Technol

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Tensile Properties and Shallow Pan Rapid Gas Blow Forming of Commercial Fine-grained Mg Alloy AZ31B Thin Sheet

Cited by 7 publications

References 8 publications

High Pressure Pneumatic Forming of Ti-3Al-2.5V Titanium Tubes in a Square Cross-Sectional Die

High Pressure Pneumatic Forming of Ti-3Al-2.5V Titanium Tubes in a Square Cross-Sectional Die

High toughness magnesium alloy through severe plastic deformation and short annealing

Modified male die rapid gas blow forming of fine-grained Mg alloy AZ31B thin sheet

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