Erhan KARA, Çetin KARATAŞ, Sevinç Zafer MUTLU

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

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,

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