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Surface Roughness - Ra & Rt relation 1

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gani11

gani11

Mechanical
Joined
Feb 19, 2005
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2
Location
CA
Hi,

For sinusoidal wave like surface how can i establish the relation between Ra and Rt (or Rp-v) as Ra = pi Rt ? Please help.
 
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I don't think there is a relationship between Ra and Rt. I don't find any reason which says Ra can be greater than Rt.

 
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Hi, it should be Rt = pi Ra. Sorry about that...
 
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