Pressure polishing 1

[mp87]

Hi,

Is there anyone familiar with this machining operation? I am struggling to find any information on the Internet, maybe it is known with another name but I am bit lost at the moment.

Thanks for your help.

 

[metengr]

Is this processing step for metals? I tried a search of pressure polishing and found several articles only related to a method for re-shaping patch pipettes during fire polishing.

 

[mp87]

Hi metengr,

Thanks for spending some time on my question.

This process is used for a connection to a shaft in contact with a bearing. I hope to receive first-hand information from the supplier, for the moment based on the few comments I was able to collect the process should involve a "stylus" that is pressed on the surface reducing both peaks and valleys and introducing compressive stresses. It seems a smart way to improve the surface quality but I would like to know more about its cost and limitations.

 

[Compositepro]

I believe what you are describing is called "burnishing".

https://en.wikipedia.org/wiki/Burnishing_(metal)

 

[mp87]

Hi Compositepro,

Thanks for addressing me in the right direction. Considering the limited hardness increase given by the measurements, my guess is low plasticity burnishing.

Will dig into further.