![]() ![]() The paper gives an overview of the realizable process window for different laser treatment modes using current high brilliant laser types. As a result, free designable 3D-strengthening-patterns surrounded by softer base metal zones can be realized by high power laser beams at high processing speed. The method tailors the workpiece hardness and thus strength at selected locations to adjust the material properties for the expected load distribution. ![]() An innovative approach has been developed to use laser beams to locally strengthen steel crash structures used in vehicle bodies. However, metallic car body structures using “Tailored blanks” or “Patchwork structures” meet these requirements only insufficiently, especially for complex load situations (like crash). The main engineering challenge is to precisely adapt the material and component properties to the specific load situation. In this context, lightweight construction materials and designs become a single most important factor. Continuously rising demands of legislators require a significant reduction of CO2-emission and thus fuel consumption across all vehicle classes. ![]()
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