I need help understanding what these letters mean as codes for surface roughness
Thread Content
The unit received a set of drawings, and one of the statements in them read as follows: VESSEL IN/OUT SIDE SURFACE FINISHING – INSIDE: Ra 0.6 (E.P) – OUTSIDE: Ra 0.8 (M.P). After translating this, I understood that it refers to the surface roughness requirements for the equipment’s surface; but what do E.P and M.P mean in the brackets? Nothing was found. I need a solution.
I’ll hold things up for you; looking forward to replies from experts............
e.p should stand for electropolishing, while m.p stands for mechanical polishing
e.p. electrolysis polishing – Electrochemical polishing; m.p. mechanical polishing – Mechanical polishing. Electrochemical polishing relies on electrochemical principles, and it offers greater precision compared to mechanical polishing