Geometry Inspection of Precision-forged Crank Shafts Based on Optical Multisensor Techniques

Abstract

A precision-forged crank shaft has to be checked for geometry it is difficult to reach and mass distribution nobody can measure directly. This talk sets out the selection of sensors for the job and the measuring system built around them, then works through acquisition of the geometry feature by feature – the main bearing, the envelope, and the crank webs and undercuts where access is worst – and shows how the mass distribution can be estimated from the measured geometry rather than determined separately.