Phase 2 SRG-4600 - Surface Comparison and Best Practices; Surface Comparison for Ra; Calculation of Rz (DIN, ASME); Mechanical Measurement Best Practices

ReviewandRecommendations
•Tostudysurfacetexture,wefiltersurfacedatainto
wavelengthbands.
•ThewavelengthbandsarecalledRoughnessandWaviness
•SkiddedstylusinstrumentsmeasureonlyRoughness
parameters(R…).Mostportableinstrumentsareskidded.
•SkidlessstylusinstrumentsmeasureRoughness,Waviness
andProfile
•Cutoffdefaultformerlywas.8mm,nowmustbedefinedon
thedrawing.
•Usethesamecutoff,numberofcutoffs,diamondradius,filter
type(GaussianorRC),andparameter(s)thatyourcustomer
usesandspecifies.
•Beawareofstandardauthority(JIS,ISO,DIN,ASME).Do
notassumethatparametersarethesame!
•Routinelycheckcalibrationanddiamondcondition.