Laser cladding of metal-ceramic nanocomposite layers for cutting applications Available to Purchase

The laser cladding process can be used 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, and hence, optimization of tool manufacturing for various applications is possible. In metallic matrices, these particles act as a 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 applying the generative laser cladding process developed in this work, using powder as an additive material. These high precision tools have so far been produced using etching techniques. Here, the generation of metal-ceramic nanocomposite layers could lead to a significantly longer tool lifetime, and a more efficient material utilization.