Honing process and tool for finishing cylinder bores of IC engines, etc. - involves traversing hone through cylinder without rotation so that honing marks are parallel to cylinder axis

摘要

The hone is traversed axially through the cylinder without significant rotation so that the honing marks produced on the surface are essentially parallel to the cylinder axis. It consists of abrasive coated segments (19) separated by small gaps (20) around the circumference. The segments, which are compliant and have slightly less curvature than the bore to be housed, can be expanded against the cylinder wall by a cone wedging system (17,18). The hone can be rotated through a small angle during axial traverse to cover the gaps (20) around the circumference, or it can be angularly indexed at the end of a traverse. Honing may initially be done conventionally and the rotational movement is switched off at the final stage. USE/ADVANTAGE - Mfr process for IC engine gives longer cylinder and ring life with reduced friction and emission of pollutants. Greater engine efficiency is obtained.