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Goodbye Hand Polishing!

- Replaced hand polishing with burnishing

- 22 minutes saved per part

- 0.2Ra surface finish achieved (Even better than required)

- Safer process



Challenge

A manufacturer needed a better means of achieving the 0.5 Ra finish they required on their parts made out of a high tensile steel. Previously, this was accomplished by a turning operation followed by hand polishing to achieve the required finish.

Using

Material: High tensile alloy steel S355J2+N

Machine: CNC Lathe

Part Specifications: Ø240mm x 385mm long

Finish Required: 0.5Ra

Turning Operation: 245m/min F0.30

Finishing Operation: Hand Polishing/Abrasive paper 30 minutes per part

Solution

The Monaghan team proposed the use of an Elliott OD Carbide Roll Burnishing Tool S2075-00M in order to consistently produce the surface finish needed and reduce the total cycle time.

Burnishing speed: 245m/min Feed: 0.15mm/rev Diameter reduction: 0.02-0.03mm Time Saving: 22 minutes per part in 1 operation

Final Result

With the Elliott OD Carbide Roll Burnishing Tool, the company was able to produce a significantly finer surface finish on a consistent basis. The company no longer needed to hand polish and was able to finish the part within the CNC automated cycle.



  • Replaced hand polishing with burnishing

  • 22 minutes saved per part

  • 0.2Ra surface finish achieved

  • One process

  • Safer, more stable process






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