Repairing Rolls -Threaded steel roll/HSS Rolls

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RepairingRolls -Threadedsteelroll/HSSRolls02

TurningtherepairingThreadedsteelroll

Material:HighSpeedSteelrolls,HardnessHRC60

SelectedInsert:BN-S20/BN-K1

MachiningCondition:

BN-S20BN-S10

/

Note：Whenreparingthegrooves,belongtoheavyinterruptturningcondition,whichwillrequire theinsertshightoughness,FirstChooseBN-K1,SecondBN-S20

Insertmaterial
Vc=25m/min,ap=0.5mm，f=0.5mm/r
Efficiency HalnnBN-S20 5times CarbideInsert

TurningRepairedHSSRolls

TurningrepairedHSSRolls

Material:HighSpeedSteelrolls,HardnessHRC63 SelectedInsert：BN-S300（Therollsneedhave goodsurface）

MachiningCondition:Vc=26m/min，ap=2mm， f=0.5mm/r

SurfacequalityComparison

HalnnCBNInsertsMachining
§1SurfaceQuality TungstenCarbideInsertsMachining

TurningRepairedCastingHSSRolls

TurningRepairedCastingHSSRolls

Materials:CastingHighSpeedSteel

Hardness:HRC64

InsertMaterials:BN-S300Vc=40m/min, ap=0.5mm

f=0.5mm/r

Note:Asourexperience,Iftherepqiredrollssurfacequalityisgood,wecanchooseBN-S300,Ifit hassomecracks,drops,wecanchooseBN-S20,ifthesurfacequalityisterriblebad,wecan chooseBN-K1.

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