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| Tensile and Springback Behavior of DP600 Advanced High Strength Steel at Warm Temperatures |
| Fahrettin Ozturk S Toros S Kilic |
| Department of Mechanical Engineering, Nigde University, Nigde 51245, Turkey |
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Abstract In recent years, the use of advanced high strength steels in automotive industry has been increased remarkably. From advanced high strength steels, dual-phase (DP) steels have gained a great attention due to a combination of high strength and good formability. However, high strength usually increases springback behavior of material which creates problem for the parts during the assembly. In this study, uniaxial tensile deformation and springback behaviors of DP600 advanced high strength steel were investigated at rolling (0o), diagonal (45o), and transverse (90o) directions in the temperature range from room (RT) to 300 oC. All tests were performed at 25 mm/min deformation speed. A V-shape die (60o) was used for springback measurements. Results indicate that the formability and springback of the material were decreased with increasing the temperatures. The material showed complex behaviors at different directions and temperatures.
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Received: 07 November 2008
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2009, Vol. 16 
