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Re: surface finish in RMS (Ra) ... : surface finish in RMS -- JohnsonSignCo Post Reply Top of thread Engineering Forum ... Although RMS (roughness measurement system) is generally used to describe metal cutting surface finish there is no reason not to use it most anywhere you wish.
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www.engineersedge.com/wwwboard/posts/2754.html
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Roughness - Wikipedia, the free encyclopedia
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Roughness is a measure of the texture of a surface. It is quantified by the vertical deviations of a real surface from its ideal form. If these deviations are large, the surface is rough; if they are...
en.wikipedia.org/wiki/Roughness
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The surface finish is important to the function of many kinds of ... bewildering variety of techniques for measuring surface finish. In this ...
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ts.nist.gov/MeasurementServices/Calibrations/upload/89-...
ts.nist.gov/MeasurementServices/Calibrations/upload/89-4088.pdf
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Ever since E.J. Abbot developed the first surface finish tester at the University of Michigan in the 1940s, industry has been aware that roughness is an important characteristic of machined surfaces.
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www.qualitymag.com/Articles/Column/eacd74ce57c38010VgnV...
www.qualitymag.com/Articles/Column/eacd74ce57c38010VgnVCM100000f932a8c0____
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= 1 m inch = N1 = 0.025 m meters; Each Triangle encompasses a range of surface finishes. Two triangles are used to denote a surface finish from 125 micro inches to anything over 32 micro inches...
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www.eng-tips.com/gviewthread.cfm/lev2/83/lev3/84/pid/17...
www.eng-tips.com/gviewthread.cfm/lev2/83/lev3/84/pid/174/qid/15637
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Hello, Does anyone know of a web site where I can find conversions / comparisons of different surface finish designations. I am looking for info such as a 180 grit finish is equivalent to ? Ra or Rh. Also, looking for what a 2B finish on stainless steel is.
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www.eng-tips.com/gviewthread.cfm/lev2/15/lev3/57/pid/33...
www.eng-tips.com/gviewthread.cfm/lev2/15/lev3/57/pid/330/qid/24326
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> SURFACE ROUGNESSES PRODUCED BY COMMON PRODUCTION PROCESSE ... Reference data you can use, a surface roughness comparison chart. ... Elect. Discharge Mach.
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icrank.com/cgi-bin/pageman/pageout.cgi?path=/data/surfa...
icrank.com/cgi-bin/pageman/pageout.cgi?path=/data/surface_finish.htm&t=2
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Ra, the most common surface finish parameter across most industries and applications, is typically measured over five cutoffs of data. Manufacturers of ultra-clean tubes have found this to be insufficient, and want to know surface conditions of the whole surface.
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www.qualitydigest.com/june01/html/surface.html
www.qualitydigest.com/june01/html/surface.html
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Does anyone have standard conversions for surface finish comparators? e.g. um to AA or RA (3.2um Ra to .125uin)? I have seen a conversion table for all the combinations of surface finish measurements but can't seem to locate it.
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www.onlineconversion.com/forum/forum_1123018928.htm
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