Solid CBN inserts, CBN inserts, PCD inserts, PCBN cutting tools-Halnn

Hard turning hardened steel chooses Halnn CBN inserts

Halnn CBN inserts grade for hard turning hardened steel

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

1,Continuous Cutting

Hard turning hardened steel parts—Gear
	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
Tool material	Surface roughness	Tool life pcs/edge
Halnn BN-H05	≤Ra0.8	800
a European ceramic tools	Ra1.0	550

2,Semi-Interrupt 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	Cutting speed (Vc)m/min	Tool life pcs/edge	Effectiveness
Halnn BN-H10	135	1000	Increase by 22%
a European ceramic tools	110	600	--

3, Heavy Interrupt cutting

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
Tool material	Tool life pcs/edge	Failure form
Halnn BN-H21	600	Normal abrasion
a European ceramic tools	100	Broken crack

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