Document Actions
Laser-based Free Form Heading
Generation of functional parts of a component by laser-based free form heading (SFB 747 - A3)
The generation of shaped elements of sheets and wires, whose cross section is larger than the sheet or wire thickness, are conventional realized by a multi-stage upsetting process, which often has to be combined with several heat treatment processes. In mikro range multi-stage upsetting processes are problematic due to handling and the increasing risk of bending. In this project a two-stage upsetting process is established, which consists of a laser-based melting process - taking advantage of the increasing surface tension in micro range - followed by a final micro forming process. Here the melting and cooling of the accumulated material is optimized in order to support the final forming process.
High speed picture of the laser-based melting process (left), material accumulation of a wolfram needle tested for a micro sensing device (diameter: 350 μm, middle), example of a sample (stainless steel, 1.4310) with good forming behaviour (right).
Funded by
DFG
Timeframe
2007/01/01 - 2010/12/31
Department Manager
Dipl.-Phys. Haiko von Rebenstock
| Phone: | +49(0)421 - 218 58000 | (Switchboard) |
| +49(0)421 - 218 58068 | (Direct Line) |