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"Conversion of roughness"



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Hi, can you help me finding the conversion from absolute surface roughness (sand roughness)to Ra.

Best regards,

Christian Holt
- Frederiksberg, Denmark



 

Hello Christian!

Try a search of this site using "surface roughness" or "surface finish", to get to a number of letters wherein your question has already been asked, and occasionally answered.

Good luck!

lee gearhart
Lee Gearhart
metallurgist - E. Aurora, New York



 

What does the word absolute mean. If you are talking about conversion of RA to RMS/Rq then I think I can help you. Rather, this is not an easy answer, because there is a variable here, that can be anywhere from 1.11 to 2.10:1. I suggest you take a look at an article at a website called www.qualitymag.com or www.predev.com/

tony kenton
AF Kenton
retired business owner - Hatboro, Pennsylvania


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