Engine Bearings

For the lining of the sliding faces of hydrodynamic bearings, tin alloys are commonly used. An important criterion for the primer is to be applied free of foreign particles, having a higher hardness than the composition used. These unwanted particles can damage the shaft, the bearing as a whole, and the system. Furthermore, sufficient adhesion strength is required at the contact surface of the bearing Base material and the lining. The usual methods of tin-based lining applications are centrifugation and static casting with these methods, the coating adhesion being created by diffusion of the device into the steel.

Laser cladding is a modern technology capable of creating uniform coatings without structural defects and thickness limitations. At the same time, it can achieve a solid metallurgical bond between the coating and the substrate. On the other hand, laser cladding technology needs to minimize the heat affected zone to a certain depth below the surface, the stress internal and related deformations of the part, more precise control of the energy input Compared to other thermal spray methods. Laser coating sheets are commonly used to produce coatings with materials such as Fe, Co and Ni.