Directionally solidified nickel-basis weld

Negative image of a laser-generated foam sample from a CT

Work of the group focusses on:

• Additive manufacturing processes from micro to macro, including the manufacturing of biomedical implants
• Repair of high-value investment goods using deposition welding
• Process development for special materials in powder form, such as nickel-based alloys, shape memory alloys, titanium alloys and magnesium
• Surface modification for protection against wear and corrosion
  • Protection layers in metal-ceramic composites
  • Laser alloying
  • Laser dispersion
• Adapting and developing system components
  • Powder feed and conveyor lines
  • Real-time thermal regulation systems for improved process quality

Current scientific work and projects:

• Laser micro-deposition-welding with the goal of reaching structure resolution of 5 µm (EU)
• Surface modification using laser dispersion
  • Manufacturing and processing of nano-micro-powder materials for increased wear resistance (BMBF)
  • Wear and friction value optimized metal-ceramic composite layers for increased service life of metal-cutting tools and molds and dies (DFG/AiF/ZIM)
• Surface modification using laser alloying (AiF/EFB)
  • Enrichment of G70L und CK45 semi-finished products by adding molybdenum and vanadium via alloying
• EDEFU „Laser-based surface modification and cleaning for improving the processing efficiency of remelting furnaces (EU)
• Laser-induced titanium melting in cooperation with the University of Bremen
  • Use of foaming agents
  • Generation of closed foam structures
  • Manufacturing of weight-optimized structures
• REMEDIS „Generation of functionalized implant surfaces in the micro scale” Joint project with the IBMT Rostock (BMBF)
• SFB 871 subproject B5 „Simulation and process development for monocrystalline deposition welding of high-value investment goods“