Tool path influence on electric pulse aided deformation during incremental sheet metal forming

Asgar, J and Lingam, R and Reddy, V N (2013) Tool path influence on electric pulse aided deformation during incremental sheet metal forming. In: The 9th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, 6–10 January 2014, Melbourne, Australia.

Full text not available from this repository.


Titanium and its alloys are difficult to form at room temperature due to their high flow stress. Super plastic deformation of Ti alloys involves low strain rate forming at very high temperatures which need special tooling which can withstand high temperatures. It was observed that when high current density electric pulse is applied during deformation it reduces the flow stress through electron-dislocation interaction. This phenomenon is known as electro-plasticity. In the present work, importance of tool configuration to enhance the formability without much resistive heating is demonstrated for Incremental Sheet Metal Forming (ISMF). Tool configuration is selected to minimize the current carrying zone in DC pulse aided incremental forming to enhance the formability due to electro plasticity and the same is demonstrated by forming two pyramid shaped components of 30° and 45° wall angles using a Titanium alloy sheet of 0.6 mm thickness. Load measurement indicated that a critical current density is essential for the electro-plasticity to be effective and the same is realized with the load and temperature measurements.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Item Type: Conference or Workshop Item (Paper)
Subjects: ?? sub4.9 ??
Materials Engineering > Materials engineering
Divisions: Department of Mechanical & Aerospace Engineering
Depositing User: Team Library
Date Deposited: 09 Sep 2015 10:40
Last Modified: 09 Sep 2015 10:40
Publisher URL:
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 1926 Statistics for this ePrint Item