With finely ground bar to a certain pressure on the pressure in the rotating workpiece, and reciprocally in the axial oscillation light of trace finishing cutting. Super finishing grinding step after the general arrangements carried out its allowance is small (typically 5 to 8 microns), commonly used in the processing of various internal and external cylindrical surface, conical surface, flat, spherical, etc., such as crankshafts, rollers, bearing rings and all kinds of precision parts.

 

  After finishing the work over, the surface roughness of up to R0.08 ~ 0.01 microns, surface machining lines intersecting ripples formed by the curves, making it easy to form a film, to improve the lubrication effect, therefore better wear resistance. Since the cutting zone temperature is low, the surface layer of mild plastic deformation, the surface with a low residual compressive stress. Super finishing conventional mill strip size is generally W0.5 ~ W28; commonly used cutting fluid kerosene oil plus about 20% of about 80%, and by the strict filtering; the bars pressure is generally 0.05 to 0.3 MPa; mill Article amplitude usually 1 to 6 mm; the circumferential speed of the workpiece is generally not more than 700 m / min. If you need to improve the shape precision parts and grinding metamorphic layer is removed, you must remove the left and right margin 0.03 mm, this time taking into coarse and fine super finishing two stages, roughing with coarse granularity of the bars, the larger speed and the bars pressure, whichever is less value when finishing.

 

   Simple explanation: Precision Machining is a kind of process of the workpiece is reached with almost zero tolerance requirements form the above information is provided by Jin Zhanrui precision.