The hole class ceramic parts has been widely used in industrial, Zhongzheng, Hones technology is an important part of the the hole class ceramic parts processing. From two types of ceramic material and the honing tool for the ceramic diamond honing processing quality research, and from the application point of view, the analysis of the surface of the ceramic material flattened honing. Engineering ceramic materials because of their excellent mechanical properties in engineering has broad application prospects. The hole class ceramic parts are used in many industrial fields, no cooling system ceramic engine with ceramic cylinder, and can improve fuel efficiency and driving efficiency and reduce fuel consumption. Oil drilling equipment, mud pump cylinder liner ZTM (zirconia toughened mullite) ceramic material, its life expectancy is three times higher than the carbide cylinder, greatly improve the life and reliability of the mud pump . In addition, ceramic bearing sleeve and textile ceramic plunger sets are to be applied in industry. Honing commonly used in the finishing of the bore surface, but it is also an efficient processing method to remove a larger margin, suitable for machining high precision relative motion precision coupling. With the application of diamond and other superhard abrasive honing of high-performance ceramic materials will account for a large proportion of . The honing process is ceramic engine cylinder (Mg-PSZ, TZP), the hole parts machining ceramic sediment pump cylinder (ZTM, Al2O3) ceramic bearing sleeve (HPSN, RBSN) the best choice. One of the main research topics facing engineering ceramic materials honing how to improve processing quality, play the excellent performance of the material
High precision machining Especially small and medium-sized through-hole, within its cylindrical up to 0.001mm. Some of the uneven thickness of the parts, such as connecting rod, its roundness can reach 0.002mm. For large holes (diameter of 200mm or more), the roundness of up to 0.005mm, is also possible if the annular groove or the radial bore straightness reached 0.01mm/1m within. Honing grinding accuracy is high, because the grinding wheel bearing support is located in the honing hole deviation, particularly small holes, grinding accuracy worse.Honing stone generally only improve the accuracy of the shape of the workpiece, in order to improve the accuracy of the position of the parts, need to take the necessary measures. Such as panels improve part end surface perpendicular to the axis (panel mounting in stroke tray, adjust it with the rotating spindle vertical parts against the panel can make). Good surface quality Cross textured surface, is conducive to the oil storage and retention of the oil film. Higher surface supporting rate of the hole and shaft (the actual contact area with the area ratio between both), and thus be able to withstand a greater load, wear resistance, thereby increasing the life of the product. Honing speed is low (a few tenth of the speed of grinding is), and the whetstone and the hole is in surface contact, so each abrasive grains with an average grinding pressure is small, so that the honing, the small amount of heat of the workpiece, the workpiece surface is almost no heat damage and deterioration layer, deformation. The honing surface almost embedded in the sand and squeeze hard layer. Processing a wide range The main processing a variety of cylindrical bore: Through Hole, axial and radial the intermittent hole, if any, the radial bore holes or slots, key slot, spline hole, blind hole, multi-step hole. In addition, dedicated honing head can be processed tapered hole, oval hole, but due to the complex structure of honing head, generally do not. Honing cylinder with a cylindricaldiamond honing, but its removal margin is far less than the margin of the inner circle honing. Honing almost any material can be processed, especially diamond and cubic boron nitride abrasive applications, to further expand the field of the use of honing, but also greatly enhance the efficiency of honing. Cutting more than less To achieve the required accuracy of the drawings, the honing process is removed and all processing methods minimal headroom and a processing method. In the honing process, the honing tool is based on the workpiece as a guide the margin achieve the desired accuracy of the workpiece to cut the workpiece excess. Honing honing tool is honing the workpiece need to margin largest local honing to need and then gradually removing the smallest margin. Ability of the correct hole As the rest of the various processing deficiencies, resulting in the process there will be some manufacturing defects. Such as: out of round, bell, corrugated hole, size small, drum-shaped taper boring knife pattern, reamers pattern, rainbow-shaped hole deviation and surface roughness. Honing processing technology to minimum allowance greatly improve the hole and the dimensional accuracy of the cylindrical roundness, straightness, cylindricity and surface roughness can be removed.