| 摘要 |
The procedure consists of coating at least one surface of a steel sheet less than 0 .65 mm thick with one or more adhesive polymer films with a total thickness of at least 0 .1 mm to form a composite laminated material . The polymer film can be extruded directly onto the sheet steel or made separately and applied to it by hot lamination or adhesive . The composite sheet material can be cut out to make a blank and shaped between a die and matrix of a stamping tool to make a component , the die being applied directly to the plastic -covered surface of the blank . Alternatively , the sheet material can be shaped by hydroforming or profiling . |
