Formability of Ti-TWBs at Elevated Temperatures

Cheng, Chi Ho; Chan, Luen Chow; Lai, Chi Ping; Chow, C. L.

doi:10.4271/2006-01-0353

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…Cracks were observed to initiate at the location near the radius of die set and propagate perpendicular to the major stretching direction. The LDH data of Ti-TWBs produced at elevated tooling temperature were compared with the base metal [3] and Ti-TWBs without heated tooling [3]. The test results are summarized in Figs.…”

Section: Drawability Of Ti-twbsmentioning

confidence: 99%

Effects of tooling temperatures on formability of titanium TWBs at elevated temperatures

Lai

Chan

Chow

2007

Journal of Materials Processing Technology

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Section: Drawability Of Ti-twbsmentioning

confidence: 99%

Effects of tooling temperatures on formability of titanium TWBs at elevated temperatures

Lai

Chan

Chow

2007

Journal of Materials Processing Technology

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“…A specially designed device can provide a temperature variation from room temperature (RT) to 600 • C within a deviation of ±10 • C. This heating device is an improved version of an earlier model reported by Cheng et al [29] that was not able to maintain consistent temperatures, thus causing measurement uncertainties. The new temperature controller can independently monitor and adjust the temperature of each forming component, such as the blank holder, the die, and the punch.…”

Section: Tooling Preparationmentioning

confidence: 99%

Thermal forming of light-weight alloys under a multi-stage forming process

Lai

Chan

Chow

et al. 2010

Proceedings of the Institution of Mechanical Engineers, Part C:

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This article presents an experimental investigation aimed to obtain the optimum formability of light-weight alloys under the multi-stage forming process. Titanium alloy sheets (Ti-6Al-4V) and aluminium alloy sheets (AA5052) of thickness 1 mm with different widths (i.e. 20, 90, and 110 mm) are selected as forming specimens. In order to carry out the multi-stage forming process, a special fixture with a heating system for the pre-straining process is designed and manufactured. The limit dome heights of both titanium alloys and aluminium alloys are measured and recorded. The experimental results reveal that both of the light-weight alloys yielded enhanced ductility at higher working temperatures, because of a decrease in the yield strength. The formability of selected materials is found to be sensitive to the forming temperatures and multi-stage forming processes.

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