Deep Power Honing principles for aspect ratio L / D ≥ 15, Material 27SiMn coal mine hydraulic support cylinder parts bore, honing to achieve electrolysis. Designed a DC power supply two sets of equipment and the electrolyte, in order to ensure the quality of the electrolytic honing its main process parameters, such as electrode gap, electrolytic honing pressure, honing, grinding characteristics and electrolyte determination of the theoretical analysis and experimental study site , and achieved good results. The issue completed in a coal mine machinery factory, hydraulic support cylinder hole electrolytic honing surface roughness R. 0.025μm, accuracy IT6, fully meet the requirements of the drawings, greatly improving productivity, efficiency than the average 20 times more honing, grinding and honing head of loss is greatly reduced.
Grinding Power Honing is a special form of one kind, belonging to finishing, grinding or fine boring needs on the basis of, honing the most commonly used is a sand bar for so that we can better understand, the following details sand bar honing features: 1, honing the workpiece when the sand bar with a large contact area of the hole wall, abrasive grinding vertical load is only about 1/50 to 1/100. The honing when a large number of cutting fluid injected, can strip off the grains of sand away in time, so that the processing surface can be cooled sufficiently so that less heat the workpiece, not burn, and deformation layer is very thin, thereby obtaining a higher surface quality. 2, sand bar up high dimensional precision honing, shape accuracy and low roughness, therefore, the finishing step in the hole before honing must be arranged in the pre-processed to ensure the accuracy of its location. 3, Sand bar floating connection with the machine spindle, honing work, for guiding the workpiece hole wall, along the centerline of the hole pre-processed reciprocates, the honing process can not be corrected relative position error of the hole, therefore, before honing finishing step must be arranged in holes pre-processed to ensure the accuracy of its position. Usually after honing boring margin of 0.05 ~ 0.08mm, honing after reaming margin of 0.02 ~ 0.04mm, after honing hole grinding margin of 0.01 ~ 0.02mm. Large margin can be divided into coarse and fine honing twice. 4, the production of high sand bar honing, motor short time, honing a hole requires only 2 ~ 3min, processing of high quality, large range of processing, machine cast iron, hardened and non-hardened steel and bronze pieces, etc., but not toughness of the non-ferrous metal processing, machining diameter of 15 ~ 500mm, hole depth to diameter ratio of up to 10 or more