Laser Structuring of connecting rod eyes
Laser Structuring of connecting rod eyes
In addition to improving sliding properties, laser structuring can also be used for other areas of application. With for connecting rods, for instance, the static friction between the bearing shell and the connecting rod eye needs to be maximized in order to ensure torsional reliability.
Objective of laser structuring
The frictional torque of the connection from the outer surface of the bearing shell and the interior surface of the connecting rod eye needs to be greater than between the inner side of the bearing shell and crank pins of the crankshaft.
- Laser structure
Principles of laser structuring
A connecting rod bearing consists of the large connecting rod eye, the bearing shell and the crank pin of the crankshaft. Whereas the friction between the crank pin and the interior of the bearing shell is minimized, it must be maximized for the torsional reliability on the exterior. A frictional connection is therefore required between the connecting rod eye and bearing shell. After the precision machining (e.g. honing or precision boring) of the connecting rod eye the machined surface is structured with a solid state laser. The torsional reliability of the mounted bearings to be achieved is thus the deciding quality parameter of laser structuring.
- Structuring on the large connecting rod eye
Your advantages
- Freely selectable, adjustable structuring
- No wear on the tools
- Markedly reduced operating costs
- High degree of operational reliability
