Fiber, adhesion optimized steel / plastic / steel composite plate with excellent suitability for resistance welding

摘要

Fiber, adhesion optimized steel / plastic / steel composite plate a, b with excellent suitability for resistance welding, in particular resistance spot welding, in which between the two cover plates 1, 2 made of steel a thermoplastic plastic interlayer 3 are connected to it, characterized in that the cover sheets in the following alloy composition by weight -%: c 0,04 to ≦ 1,0, al 0,05 to 4,0, si 0,05 to ≦ 6,0, mn 9,0 to 18,0, remainder iron including the usual to 6 and optional addition of cr, cu, ti, zr, v and nb and the cover plates 1, 2 in the event of deformation of a trip and twip effect and / or the of the plastic interlayer 3 facing sides of the cover plates 1, 2, from the cover plate 1, 2 are mechanically processed, and shaped and for the mutual interlocking suitable apart form elements 4, 5, wherein this by the previous shaping an increase in strength in comparison to the untreated sheet metal cover 1, 2 and have experienced in their number and height are dimensioned so that the apart form elements 4, 5 of the cover plates 1, 2 relative to one another or with the opposite sheet metal cover 1, 2 and thus the cover plates 1, 2 are secured against relative displacement and in this case an electrical contact between the cover plates 1, 2 form, which a resistance welding of the composite shell are pre-treated through exposure a, b enable.