Surface roughness of stainless steel and electroformed nickel standards using a HeNe laser

摘要: Abstract Using a helium neon laser relationship was established between specular reflection and surface roughness for fifteen stainless steel mill finish plates twenty-two electroformed nickel surfaces. Results showed that, at high angles of incidence, the reflectance independent alloy type or process. Moreover, as increased, decreased both alloys. Hensler Tanner expression rms determined directly those samples having less than 0.4 μm. The present investigation substantiates an on-line optical technique to measure relatively smooth test