Automotive Manufacturing

Honing is an abrasive process (similar to grinding) at comparatively slow speed from which the stock is removed from metallic or non-metallic surfaces by a bonded abrasive sticks called honing sticks/tools.

Honing is a finishing process used to improve the geometry of a part, readjust the alignment of features such as holes or bores, and produce a finer surface finish. In the honing process, a small, bonded, abrasive stone or super-abrasive stick is rotated over the surface of a part over a controlled path.

Superfinishing is used to refine the surface finish of a component to produce a very fine surface with an exceptionally low roughness average (RA). A fine-grit abrasive stone or tape is rotated over the component while the component is simultaneously spun in the opposite direction. This process removes the amorphous surface layer left by the last grinding process and leaves a recognizable crosshatch pattern. Superfinishing will increase the life of a part by decreasing wear and tear.

Honing Super finishing Oil

The high-performance specification of honing oils and finishing oils are formulated with a select blend of base fluids and additives that are safe for use with all types of materials.

The low-viscosity honing oil is blended with or without chlorine and sulfur additives, antioxidants, extreme-pressure additives, and synthetic ester lubricity additives for honing different metals. The high lubricity of honing oil ensures longer tool life, higher work speeds, and better finish quality. It also helps to achieve good finishes in short-stroke, micro-finishing operations on tough materials like bearing steel and other steels.

Majbrs Factors fluencing Honing application

  • Honing/ super finishing fluid
  • Honing Tool (Material – Carbides, Blades, Sulphurized key stone, Diamond stones, etc.)
  • Honing time
  • Honing Length
  • Honing pressure
  • RPM
  • Material
  • Filtration

Key requirements of Honing Oil

  • Low Viscosity
  • EP Additives
  • Compatibility with tools and part material
  • Good Filterability
  • Good sludge/ fines settling proper ies
  • Good oxidation St ability