THE STUDY OF THE EFFECT OF THE MOULD PARAMETERS ON THE MOULDING FORCE IN THE DEEP DRAWING PROCESS OF DP600 MATERIAL

Year 2016, Volume: 1 Issue: 3, 14 - 22, 01.08.2016

Erhan Kara Çetin Karataş Sevinç Zafer Mutlu

Abstract

The goal of this study is to determine the suitable die parameters which are used to shape the high strength sheet metal before die production, and to design and produce proper dies using these parameters and get cups with desired production quality economically. In this study, the parameters affecting the deep drawing process were experimentally investigated. The experiments were carried out by using samples drawn from highstrenght DP600 quality of 0,9 mm thick. All the experiemnts were realized by using Hounsfield tension-compression test device. The effects of the die radius (2,3,4 and 6 mm) punch curve radius (2,3,4 and 6 mm), punch velocity (60, 150, 250 and 350 mm/min) and lubrication (without lubricant, stretch film and mineral oil) parameters on the moulding force were investigated. It was observed that the sheet material was wrecked in small die radius. Furthermore, it was observed that molding force decreased when the punch velocity and die radius increased. The same relationship was determined when the present lubricant is replaced with other oil. The smallest molding force was obtained when strech film was used

Keywords

Deep drawing, metal forming, plate materials, radius of punch

References

• Colgan, M., Monaghan, J., (2003). Deep Drawing Process Analysis and Experiment, Journal of Materials Processing Technology, 132: 35-41.
• Kara, E. (2011). DP500 Ve DP600 Sac Malzemelerin Derin Çekilebilirliğinin İncelenmesi. Gazi Üniversitesi, Ankara,1-94.
• Güneş, A.T. (2005). Pres İşleri Tekniği Cilt 2. Makine Mühendisleri Odası, Ankara, 1- 207.
• Bozdok, M. (2008). Advanced High-Strength Steel Product and Process, A Special Edition of In-Depth AHSS Case Studies Including Excerpts from the World Auto Steel AHSS Applications Guidelines, Auto/Steel Partnership, Michigan, 25.
• Çapan, L. (2003). Metallere Plastik Sekil Verme 4. Baskı. Çağlayan Kitabevi, İstanbul, 1-180
• Uzun, İ., Eriskin, Y. (2002). Sac Metal Kalıpçılığı. Milli Eğitim Bakanlığı Yayınları, Ankara. 1-360.
• Takahashi, M. (2006). Development of High Strength Steels for Automobiles. Nippon Steel Technical Report, 88.
• Shi, M. (2001). Formability Performance Comparison between Dual Phase and HSLA Steels. Iron & Steel Society, 39:165.
• Power, W. F. (2000). Automotive Materials in the 21st Century. Advanced Materials and Processes, 210.
• Deanna,S., (2001). Technology Transfer Dispatch No.6 Provides Valuable Information on the Selection of Advanced High-Strength Steels for ULSAB-AVC. Lorincz American Iron and Steel Institute, Detroiit, 76:84.
• Kishor, N., Kumar, R. (2002). Optimization of initial blank shape to minimize earing in deep drawing using finite element method. Journal of Materials Processing
• Technology, 130-131: 20-30Simith, A.D.,“Die Design Handbook”, Society of Manufacturing Engineers, Michigan, 10,1-12,43 (1990).
• Park, D.H., Huh, Y.M., Kang, S.S., “Study on punch load of non-axisymmetric deep drawing product according to blank shape”, Journal of Materials Processing Technology,130-131:89-94 (2002).
• Kim, H., Sung, J.H., Sivakumar, R., Altan, T., “Evaluation of stamping lubricants using the deep drawing test” International Journal of Machine Tools and Manufacture, 47: 2120-2132 (2007).
• Allen,S.J., Mahdavian, S.M., “The effect of lubrication on die expansion during the deep drawing of axisymmetrical steel cups”, Journal of Materials Processing Technology,199: 102-107 (2008).