Case Study: Burnishing a Gearbox Drive Shaft
Summary Of Results 12-14 Ra microinch (0.30 – 0.35Ra) surface finish achieved 30 minutes saved per part Replaced grinding operation with burnishing Huge cost savings
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Burnishing is the best way to improve a surface finish, enhance part quality and eliminate costly finishing operations. Eliminate secondary operations, improve surface finish and save time and money with Elliott burnishing tools.
Our team has worked with thousands of different applications. If you have a question or are wondering if your application is a good fit for burnishing, contact us here.
Burnishing is a chipless machining method which cold works the metal without cutting or abrading the surface.
It removes no metal but rather compresses, or “irons-out” the peaks of a metal surface into the valleys, generating a dense and uniform surface.
Roller burnishing improves surface finish and results in dimensional accuracy.
The cold working condenses the grain structure of metal, producing an increase in surface hardness from 50% to 100%, within a penetration of .010” to .030” on the part’s surface.
In roller burnishing, the material is elastically deformed to a given depth below the surface. The result is compressive stresses at the surface. In turn, this increases the resistance of the material to fatigue failure because any external forces must first overcome these residual stresses.
Summary Of Results 12-14 Ra microinch (0.30 – 0.35Ra) surface finish achieved 30 minutes saved per part Replaced grinding operation with burnishing Huge cost savings
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Dayton, Ohio 45402
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