Question about a Surface Finish symbol
Question about a Surface Finish symbol
(OP)
Hi members, can someone explain the meaning of the Surface Finish symbol in the attachment? and what does "C40" mean? Material or Rockwell hardness?
Thanks a lot!
Thanks a lot!





RE: Question about a Surface Finish symbol
John Acosta, GDTP S-0731
Engineering Technician
Inventor 2013
Mastercam X6
Smartcam 11.1
SSG, U.S. Army
Taji, Iraq OIF II
RE: Question about a Surface Finish symbol
RE: Question about a Surface Finish symbol
John Acosta, GDTP S-0731
Engineering Technician
Inventor 2013
Mastercam X6
Smartcam 11.1
SSG, U.S. Army
Taji, Iraq OIF II
RE: Question about a Surface Finish symbol
If your roughness designation is standard (which is doubtful) “C” could mean circular lay orientation.
Normally numerical value is placed slightly above lay symbol like in enclosed picture. The number indicates sampling (cut-off) length. Unfortunately “40” is outside of standard range.
Another numerical value that is placed below cut-off and somewhere to the right of lay is alternative surface roughness, say Rz if your main roughness was Ra. But Rz is usually clearly identified as such.
If you can communicate with person who created the drawing, don’t be ashamed to ask questions, because the designation definitely isn’t 100% clear.
RE: Question about a Surface Finish symbol
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: Question about a Surface Finish symbol
I think C40 has something to do with quality of the surface?
Link
Chris
SolidWorks 11
ctopher's home
SolidWorks Legion
RE: Question about a Surface Finish symbol
Petrotrim Services
www.petrotrim.com
RE: Question about a Surface Finish symbol
http://www.makeitfrom.com/material-data/?for=SAE-A...
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.