Product Code: ICA11_1701

Laser Cladding of Metal-Ceramic Nanocomposite Layers for Cutting Applications
Authors:
Sabine Claussen, Laser Zentrum Hannover e.V.; Hannover Germany
Albert Grueninger, Laser Zentrum Hannover e.V.; Hannover Germany
Michael Hustedt, Laser Zentrum Hannover e.V.; Hannover Germany
Stephan Barcikowski, Laser Zentrum Hannover e.V.; Hannover Germany
Volker Wesling, Laser Zentrum Hannover e.V.; Hannover Germany
Heinz Haferkamp, Laser Zentrum Hannover e.V.; Hannover Germany
Presented at ICALEO 2011

The laser cladding process allows for the generation of complex near-net-shape geometries on a multitude of different substrate materials. By adding ceramic particles, the mechanical and tribological properties of the matrix material can be improved, hence optimizing the manufacturing of tools for various applications. In metallic matrices, these particles act as reinforcing phase and lead to a higher wear resistance. To avoid stress peaks in the material, ceramic nanoparticles instead of microparticles may be used. In this context, a homogeneous distribution of the particles and the prevention of ceramic agglomerates in the matrix are essential to achieve optimized properties. A method for the integration of nanoparticles in the laser cladding process has been developed and has thus enabled the fabrication of steel-ceramic-nanocomposite structures. Cutting tools, for example in the paper-converting industries, could be manufactured by application of the generative laser cladding process developed in this work, using powder as additive material. These high precision tools are produced with etching techniques so far. Here, the generation of metal-ceramic-nanocomposite layers could lead to a significantly longer tool lifetime and a more efficient material utilization.