Forming tool and method for its preparation

2004 
In the forming of workpieces an external force to the forming tool and / or the workpiece acts which causes the flow of the workpiece material and its plastic deformation into a predetermined shape by the tool shape. The tool high wear forces is subjected. As part of the increasing shortening production cycles and forming tools must be produced faster and faster, their wear resistance should remain largely intact. An inventive forming tool comprises a lower and an upper tool, wherein the lower and / or upper die having a molding shell and a this supportive backing, wherein the lower and / or upper tool at least partially consist of laminated layers of material or interconnected powder particles, wherein the forming tool has an elastic intermediate layer between the lower and / or upper tool and the forming shell. The elastic intermediate layer serves to alleviate voltage spikes in the pressure load in the forming process or to compensate for, and so to reduce wear of the tool.
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