Hard turning hardened steel chooses Halnn CBN inserts

Characteristic

Halnn CBN

Cutting depth

Cutting condition

Toughness

(Roughing)

Hardness

(Finishing)

BN-S20

1-10mm

Interrupt-Continuous

BN-H20

≤1mm

Semi-Interrupt

BN-S200

≤1mm

Continuous

BN-H11

≤1mm

Continuous

Finished hardened steel CBN tool

BN-H05

≤0.2mm

Continuous

BN-H10

≤0.5mm

Continuous- Slight Interrupt

BN-H21

≤0.5mm

Heavy Interrupt

Finished hardened steel coated CBN tool

BN-H05 C25

≤0.2mm

Continuous

BN-H10 C25

≤0.5mm

Continuous- Slight Interrupt

BN-H21 C25

≤0.5mm

Heavy Interrupt

Processing parts: Gear

Workpiece material: Hardened steel(HRC58-62)

Machining process: Finish turning after quenching

Tools type: BN-H05 CNGA120408

Cutting parameters: Cutting speed(Vc)=180m/min, 

Feed rate(Fr)=0.1mm/r, 

Cutting depth(ap)=0.1mm

Processing method: Dry cutting

Halnn CBN inserts BN-H10 Semi-Interrupt cutting gear Bore

Processing conditions: Semi-Interrupt cutting

Workpiece hardness: HRC58-62

Tools type: BN-H10 CCGW09T304

Cutting parameters: Cutting speed(Vc)=135m/min,

Feed rate(Fr)=0.25mm/r,

Cutting depth(ap)=0.08mm

Processing method: Dry cutting

Tool material

Tool life 

pcs/edge

Effectiveness

a European ceramic tools

Halnn CBN inserts BN-H21 Heavy Interrupt cutting gear End face

Processing conditions: Heavy Interrupt cutting

Workpiece hardness: HRC58-62

Tools type: BN-H21 WNGA080404

Cutting parameters: Cutting speed(Vc)=117m/min,

Feed rate(Fr)=0.15mm/r,

Cutting depth(ap)=0.1mm

Processing method: Dry cutting

Failure form

Normal abrasion