FORMING THREE DIMENSIONAL OBJECT.

摘要

A two dimensional sheet material (30) is provided that is suitable for bending along a bend line (35) to form a three-dimensional object The sheet material is provided with a plurality of displacements (37) in a thickness direction of the sheet material on one side of the bend line. A portion of the displacements shear adjacent the bend line and define an edge and an opposed face. The edge and opposed face configured to produce edge-to-face engagement of the sheet material during bending Alternatively, sheet material is provided with a plurality of displacements in a thickness direction of the sheet material on one or both sides of the bend line, and with a plurality of corresponding and cooperating protrusions to improve structural integrity and/or to improve electromagnetic and radio frequency shielding. The sheet material may also be provided with a self-latching structure (61). A method of preparing and using these sheet materials is also described.