Machining accuracy and advantages of honing pipes

- Mar 24, 2019-

The honing pipe has high precision in the process of processing, and to some extent, especially some small and medium-sized optical through holes, in general, the cylinder can reach 0.001 mm or less. The honing has higher precision than the grinding process, and the surface quality of the honing pipe is good. To a certain extent, the surface is cross-mesh, which is beneficial to the storage of the lubricating oil and the maintenance of the ink to a certain extent.

The honing pipe will have a relatively high surface support rate to a certain extent, mainly because it can withstand a relatively large wear resistance and load to a certain extent, thus improving the service life of the product, the honing speed is low and the whetstone and the hole are The surface contact, so the uniform grinding pressure of each abrasive grain is small, so that the heat generated by the workpiece is small, the surface of the workpiece has almost no thermal damage and metamorphic layer, and the deformation is small.

The surface of the honing pipe is almost free of its extruded hard layer and sand embedded. During the manufacturing process, the grinding is greater than the honing cutting pressure. In use, the grinding tool and the workpiece are in line contact, to a certain extent. There will be a relatively high relative velocity, which will cause high temperatures in local areas, which will lead to permanent damage to the surface structure of the part.

The main principle of the honing pipe in the process of processing is to effectively use one or more oil stones installed on the circumference of the honing head. To a certain extent, the oil stone is mainly opened by the expansion mechanism. Press against the wall of the workpiece to create a certain surface contact. At the same time, the honing head is rotated and reciprocated, the parts are not moved, or the honing head is only rotated, and the workpiece reciprocates to achieve honing.

During the production process, the honing pipe is floating between the honing head and the machine tool spindle or between the honing head and the workpiece holder, so that the honing head is guided by the workpiece hole wall during the processing, so that the processing precision of the product is affected by the machine tool. The influence of its own precision will be relatively small, and the formation of the pore surface during its use is basically characterized by the creation process.

In the creation process, the honing pipe is made up of the oil stone and the hole wall and is mutually trimmed to form the hole wall and the oil stone surface. The principle is similar to the principle that two planes of flat motion are mutually studied to form a plane. During the honing, the honing head rotates and reciprocates or the honing head rotates the workpiece to reciprocate, so that the processing surface forms a cross spiral cutting path, and the number of revolutions of the honing head is not an integer in each reciprocating stroke time, so the honing between the two strokes The head is offset from the workpiece by a certain angle in the circumferential direction. Such movement causes the trajectory of each abrasive grain on the boring head to be non-repetitive on the wall of the