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Corresponding Author

Ibrahim, Magdy

Subject Area

Production Engineering and Mechanical Design

Article Type

Original Study

Abstract

In a steel / plastic laminated sheet with a core resin as an intermediate layer. shear deformation is concentrated on the resin layer during the forming in which a shearing force appears due to a considerable difference in strength between the skin steel sheets and the core resin, leading to forming problems such as shear between the two skin steel sheets and stinkhing. It was found that these forming problems are greatly affected by the bonding strength, tensile strength and ductility of che core resin and that good formability is obtained with a bonding strength of 23 8 MPa. Comparing the variable blank holding force with the constant blank holding force, the drawability of steel / plastic laminated sheet of 1.05 mm thick - is improved when using the variable BHF. Three kinds of room temperature laminated steel sheets with polyester, polypropylene, und nylon as corc resin were chosen as investigated materials.

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