Effect of Blank Holding Force of the Formability and Limiting Drawing Ratio for Steel-Plastic Laminated Sheets.

Document Type : Research Studies

Author

Assistant Professor., Industrial production Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

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.

Main Subjects

MEJ- Mansoura Engineering Journal
Volume 19, Issue 4
VOL 19 has two issues issue 4 consist of two parts from (September to December)
December 1994
Pages 1-14

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