Hardened Steel Process

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Grades

CBN Content

Machining Mode

Workpiece Material

Application

UBN S1

90%

Interrupted

Continuous

Grey cast iron

Rough/semi-finish

Roll, surfacing roll repairing, mining machinery, large gear and etc.

UBN S2

70%

Interrupted

Continuous

Hardened steel

Rough/semi-finish

Wind power bearing, crankshaft, mining machinery, automobile gear and etc.

UBN S3

50%

Interrupted

Continuous

Hardened steel

semi-finish/finish

Crankshaft, drive shaft and etc.

UBN S4

60%

Interrupted

Continuous

Hardened steel/ductile iron

semi-finish/finish

Gear, shaft and etc.

UBN S5

75%

Continuous

Hardened steel

semi-finish/finish

Wind power bearing, gear for mining machinery, crankshaft, gear for automobile.

Remark: Inserts can be customized with special ingredients

               Roll

               Workpiece Material / 

                High nickel chromium alloy cast iron

            Hardness /

                HSD78

                Cutting Parameters /

                Vc=55m/min, ap=2mm, f=0.2mm/r;

                Grade: UBN S1

       

                Crankshaft

               Workpiece Material / 

                42CrMo

            Hardness:

                HRC42-47

                Cutting Parameters /

                Vc=150~180m/min,                                                                 ap=0.2~0.3mm,f=0.08~0.12mm/r; 

              Grade:UBN S3, UBN S4

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