Mandrel honing tool

摘要

A mandrel honing tool (11) is intended for the precision machining of cylindrical workpiece bores and has front guide sections (18, 70), a tapered cutting section (19) and a cylindrical finishing zone (20) as well as an adjoining cylindrical guide zone (14). The zones (18, 19, 20) carry a cutting layer (72, 73) consisting of abrasive agent and if need be having different grain size, while the guide zones (14, 70) have an armoured layer (71) which consists of extremely hard material particles, for example diamond, and which, on account of its grain size and/or arrangement, does not cut but protects the guide zones from wear or damage. The mandrel honing tool (11) normally works in a single forward and return stroke of the rotationally driven tool. <IMAGE>