Submitted on: 22 February 2013.
Revised on: 30 May 2013.
Accepted on: 18 July 2013.
___________________International Journal of Material Forming
Submitted on: 11 February 2008.
Revised on: 12 March 2008.
Accepted on: 05 May 2008.
___________________International Journal of Material Forming
Submitted on: 13 July 2010.
Revised on: 10 September 2010.
Accepted on: 01 November 2010.
___________________International Journal of Material Forming
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