The traditional method of manufacturing connecting rods calls for machining the crankshaft and pin bore holes in the connecting rod, and then separating the rod and cap to facilitate installation on the crankshaft. This was a difficult operation requiring extremely high-precision in machining the mating surfaces of the rod and cap.
The fracturing process pioneered by MAG Powertrain eliminates the complex machining required to achieve precision mating of the cap and rod. Instead, the cap is separated from the rod at a precisely predetermined position by fracturing. The separated faces remain unmachined, their rough surface finish ensuring perfect mating during subsequent connecting rod assembly. The degree of mating accuracy far exceeds that achieved using conventional techniques.
This technique:
- Significantly reduces production costs
- Minimizes connecting rod production floorspace
- Reduces tooling, energy and repair costs
- Is being continuously further developed by MAG Powertrain also for other products
- Increases the strength of the connecting rod & cap joint.
