- What is the minimum & max diameter of burnishing tool can be manufacturer ?
“ Subrto” manufacturing Burnishing Tools diameter range from 5 MM. to 300 MM. Maximum. and or as per customer requirement.
- What is the lubricant / coolant require for burnishing?
Use any standard grade of light weight, low viscosity lubricating oil for most of metals. For aluminum and magnesium alloys, a high- refined paraffin based oil of low viscosity oil work well. Cast iron can be roller burnished with out lubrication. Water soluble lubricants are acceptable.
- What kind of Burnishing finish can be achieved after burnishing?
Surface roughness 0.4 to 0.05 u Ra value is obtainable, although it depends on material properties like pre –burnishing condition, material quality, and operation condition also.
- Is the Burnishing Tools diameter is adjustable?
Yes, Burnishing Tools for straight bore whether it is blind / through having +1 mm. And any special purpose tools have different adjustments.
- How much hardened material can be burnished?
Metal hardness below 40 H.R.C can be burnished and burnishing is possible only plastic deformable metal.
- “ Subrto” can make special tools ?
Yes, for details, see Product Range at home page for special tools.
- What type of machine required for burnishing tools?
Burnishing tools can be made for any type of driven machine like drill/ lathe/ milling or any spm’s. Any machine will do burnishing if it has revolution. “Subrto” has given feed feature inbuilt in the tools.
- What about any dimensional change after burnishing?
As such there is no dimensional change after burnishing, only bore diameter will increases by microns (value of it is depends on the material).
- How long is process time of burnishing?
Burnishing is faster process then grinding. Single pass of burnishing tools give mirror finish like 3 to 4 triangle finish. For see view details.
