Honing

high-precision finish machining of internal cylindrical surfaces (often piston cylinders) or external cylindrical/conical surfaces with diametres from 2-1000 mm and lengths from a few millimetres to several dozen meters

automotive, aviation industries

Honing is a high-precision abrasive machining method in which the cutting tool, in the form of a cutting head (with the abrasive stones arranged on the circumference of the tool), carries out the primary rotary motion and rectilinear feed motions while the workpiece does not perform any working motions. The combination of these movements causes each abrasive grain of the abrasive stone to imprint itself on the workpiece along a track in the form of a helical line. When the stroke length of the head movement is in the order of tens of centimetres, the process is called long-stroke superfinishing.

Alternative technologies
  • grinding
  • milling
  • turning
  • boring
  • reaming
  • ECM machining
  • micromachining
  • electron beam machining
  • very low roughness and relatively high material content of machined surfaces
  • possibility of machining a wide range of workpiece diameters and lengths
  • machining of a wide range of workpiece materials (regardless of hardness)
  • immobile workpiece during machining (thus possibility of effective subtractive manufacturing of large mass/dimensional workpieces)
  • high investment cost
  • relatively low process efficiency
  • cast iron
  • steel (including hardened steel)
  • non-ferrous metals
  • non-ferrous metals alloys
  • pistons
  • cylinders
  • hydraulic pipes
  • hydraulic valve cylinders
  • fuel injectors
  • honing machine
  • cutting tools
  • tooling
  • training in finish machining

Water consumption

Energy consumption

Waste generated

Competitiveness

Usability

Environmental impact

  • Poznan University of Technology
  • Opole University of Technology
  • AGH University of Krakow
  • none