Force-controlled form honing using a piezo-hydraulic form honing system

Form honing of cylinder bores represents a manufacturing approach to compensate mechanically or thermally induced distortions in combustion engines, aiming at reducing internal friction. This article describes a new concept of a form honing tool, based on a piezo-hydraulic force transmission for the actuation of the honing stone. Conception, constructive design, prototypical implementation, and experimental evaluation of the new form honing concept is presented. This new concept leads to a significantly increased process-performance and provides the possibility for in-process recording of the honing normal force, which represents the basis for a new force-controlled form honing process.