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Surface Finish in Japanese Standards JIS
Q. Where can I find explanation and symbols for surface finish in JIS.A KAMINOULU
machine shop - TORONTO, ONTARIO, CANADA
Q. Where can I find symbol and conversion information regarding JIS surface finish requirements? I'm referring to the "upside triangle" symbols used by most Japanese manufacturers. I need to know what the symbols mean, what numerical value is associated with them, and how to convert them to Ra or Rma.Rick Spellman
- Mason, Ohio, US
August 7, 2014
Q. What is the RMS or Ra smoothness conversion for Japanese 12.5a and 2.2?Mark Otis
steel - Kingman, Arizona, USA
February 1, 2017
A. I hope this document could help.
Petrochemical Plant Engineering & Construction - Bangkok, Thailand