Struers methods: Carbonitrided Steels Brittle Surface 1944 DiaPro. Source classification: Ferrous Metals.
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Grinding Steps PG FG FG 2 FG 3 Surface Type SiC Foil #320 SiC Foil #500 SiC Foil #1200 MD-Largo Disc speed (rpm) 300 300 300 150 Abrasive Type DiaPro Allegro/Largo 9 µm Predosing/dosing 3/6 Lubricant Type Water Water Water Predosing/dosing Force (N) 30 30 30 30 Holder direction >> >> >> >> Holder speed (rpm) 150 150 150 150 Time (min) 1 1 1 5 Carbonitrided Steels - Brittle surface 1944 Ferrous Metals DiaPro Polishing Steps DP DP 2 Surface Type MD-Dac MD-Nap Disc speed (rpm) 150 150 Abrasive Type DiaPro Dac 3 µm DiaPro Nap B 1 µm Predosing/dosing 3/10 3/14 Lubricant Type Predosing/dosing Force (N) 30 20 Holder direction >> >> Holder speed (rpm) 150 150 Time (min) 4 1 The method is developed to fit a standard equipment configuration with 30 mm specimen on 300mm disc. Dosing levels are valid for following equipment: Tegramin, AbraPol and LaboPol For advice on how to adjust the method to fit your equipment, please take a look at Preparation Parameters. The preparation time for the plane grinding (PG) step depends very much on the condition of the samples and if they are prepared as single specimens or clamped in a specimen holder. Please check the samples after the first step and repeat it if necessary. Method comments Take a look at Preparation Parameters