The honed cylinder tube is well known as a hydraulic cylinder tube in industries.Hydraulic tubes are cold drawn tubes with the internal surface SRB finished or Honed.
The honing process is used to produce smooth surface finishes inside bores, or to hold precise tolerances on bore diameters. Honing produces the required surface finish or finished diameter by utilizing an abrasive stone, which turns while being moved in and out of the workpiece. Cutting fluids are used to provide smooth cutting action and to remove the cut material from the bore.
The process involves introducing a mandrel (tool) into an ID or bore to remove debris and/or to change an ID finish. A lubricant may be used. The material is abrasively removed by the shearing action of the grains contained in the honing tool. This allows inaccuracies of previous operations to be corrected. Roundness is generated by the tool rotation seeking the centerline of the I.D. or machined bore. Finishes of 8µin and better can be achieved depending on the material and size. The reciprocating motion of the tool generates straightness.