Page 191 - DME Workshop Equipment Catalogue 2023 EN

SURF
A
CE FINISHING EQUIPMENT
WORKSHOP EQUIPMENT - SURFACE FINISHING EQUIPMENT
POLISHING SAMPLE PLATE
POLISHING SAMPLE PLATE PSP001

Surface characteristics for determining the roughness of a profile
(starting from a measuring section ln, consisting of five individual segments lr)
Ra: Average roughness
R3z: Third Maximum Peak-to-Valley Height
Rt: Total height of the profile
Ry: Smaximum Height
Rz: Averaged roughness of the profile

Z

Rz X
Ry 2 (Z2) R3z 4 Rt

l l l l l
1 2 3 4 5
Ir
In

Grade Quality Roughness Gloss degree DME Grade Quality Roughness Gloss degree DME
Abrasive finish Abrasive finish
Ra 1,27 Ra 0,17
R3z 5,4 R3z 0,9
Grain 80 Abrasive Grain 500 Abrasive
1 Rt 12,3 17,20% 7 Rt 1,7 26,20%
finishing finishing
Ry 10,1 Ry 1,6
Rz 8,6 Rz 1,4
Ra 0,7 Ra 0,13
R3z 3,2 R3z 0,6
Grain 120 Abrasive Grain 600 Abrasive
2 Rt 7,1 21,20% 8 Rt 1,4 30,00%
finishing finishing
Ry 7 Ry 1,2
Rz 5,7 Rz 0,9
Ra 0,43 Ra 0,13 DME : RO 601 / RO 605 / RO 801 / PS600
R3z 2,4 R3z 0,5
Grain 80 Abrasive Grain 800 Abrasive
3 finishing Rt 4,4 19,50% 9 finishing Rt 1 36,80%
Ry 3,7 Ry 0,9
Rz 3,1 Rz 0,7
Ra 0,46 DME : RO 601 / RO 605 / RO 801 / PS600 Ra 0,12
R3z 2,1 R3z peak
Grain 220 Abrasive Grain 1000 Abrasive
4 Rt 4,3 19,50% 10 Rt 0,9 52,70%
finishing finishing
Ry 3,8 Ry 0,8
Rz 3,1 Rz 0,6
Ra 0,27 Oilstone finish 0,65
CAD reference point 5 Grain 320 Abrasive Rt 2,5 24,50% 11 Grain 100 stone R3z 3,2 12,50% DME : PT650
R3z
1,5
Ra
finishing
Ry
6
2,3
Rt
5,6
Rz
Ry
2,1
Ra
R3z 0,23 Rz 4,8
1,4
Grain 400 Abrasive
6 finishing Rt 2,2 23,10%
Ry 2,1
Rz 1,9
store.dme.net 189