Papers by Keyword: Honing Precision

Abstract: For the deep-hole drilling is in closed or half-closed condition and the cutting situation can’t be controlled directly, it brings a big challenge to attain the machining precision. Deep-hole honing is an effective process method that can ensure the precision of size, geometry shape and surface quality. A new machining technologies of finishing honing on precision deep-hole are discussed. Two typical machining examples were illustrated, and the machining effection were also discussed. The key technology and chief feature of strong honing were analyzed through honing experiment of titanium alloy and PH stainless steel. The experiments indicate that strong honing is one effective method to solve the problem of precision deep-hole machining of difficult-to-cut materials and the honing tools which was used in the experiments have the feature of good rigidity, high cutting efficiency.

Abstract: Because of the high precision in roundness, straightness and roughness, it is very difficult to machining the inner surface of injection nozzle. Honing machine is the main equipment for machining the injection nozzle. The key honing control techniques and honing test for injection nozzle on the developed high precision vertical honing machine are analyzed. The quantitative expansion，which is one of the most important feeding styles in honing process, is discussed in detail. Some machining tests on the developed honing machine are made and the work pieces of injection nozzles with inner surface Φ11mm are honed successfully with roundness tolerance less than 0.4μm, straightness tolerance less than 1μm and roughness tolerance less than 0.04μm.