Application Case

Halnn CBN Cutting tools solutions for turning hardened steel gear screw parts

Introduction：Hardened steel typical parts include gears, driveshafts, bearings, ball screws, ball cages, synchronizer gear sleeves, HSS rolls, etc. The hardness is above HRC50, and Halnn CBN tools are used to turn hardened steel, the processing process is simpler, and the cost is Lower, with higher production efficiency, at the same time, no cutting fluid is added when turning quenched steel, which is greener and environmentally friendly

Halnn CBN Cutting tools and CBN Cutting inserts turning hardened steel gear

Hardened steel typical parts include gears, driveshafts, bearings, ball screws, ball cages, synchronizer gear sleeves, HSS rolls, etc. The hardness is above HRC50, and Halnn CBN tools are used to turn hardened steel, the processing process is simpler, and the cost is Lower, with higher production efficiency, at the same time, no cutting fluid is added when turning quenched steel, which is greener and environmentally friendly

Application case

	Workpiece: Driveshafts
	Workpiece material: 20CrMo
	Workpiece hardness: 62-65HRC
	Inserts type: BN-H10 VNGA160408
	Cutting parameters: Vc=132m/min, ap=0.1mm, fr=0.15mm/r
	Surface roughness: Ra1.6
	Processing method: wet cutting
	Result: BN-H10 grade tool life is 45% higher than that of KBN25M grade inserts

	Workpiece: Gears
	Machining conditions: continuous cutting
	Workpiece material: 20CrMnTi
	Workpiece hardness: 58-62 HRC
	Inserts type: BN-H05 CNGA120408
	Cutting parameters: ap=0.1mm, Fr=0.1mm/r, Vc=180m/min
	Processing method: dry cutting
	Result: BN-H05 grade tool life is 45% higher than that of other brand CBN inserts

	Workpiece: Gear
	Machining conditions: Light interrupted cutting
	Processing material: 20CrMnTi
	Workpiece hardness: 58-62HRC
	Inserts type: BN-H10 CCGW09T304
	Cutting parameters: ap=0.25mm, Fr=0.08mm/r, Vc=135m/min
	Processing method: dry cutting
	Result: BN-H10 grade tool life is 66% higher than that of imported CBN inserts, and increases 22% in efficiency

	Workpiece: Gear
	Machining conditions: Heavy interrupted cutting end face
	Processing material: 20CrMnTi
	Workpiece hardness: 58-62HRC
	Inserts type: BN-H21 WNGA080404
	Cutting parameters: ap=0.15mm, Fr=0.1mm/r, Vc=117m/min
	Processing method: dry cutting
	Result: Compared with other Brand CBN inserts, the BN-H21 grade tool life improves 5 times, and excellent impact resistance and wear resistance in heavy interrupted processing

	Workpiece: Wheel hub bearing unit
	Machining conditions: continuous chips
	Workpiece hardness: 58-62HRC
	Inserts type: BN-H10 C25
	Cutting parameters: Vc=180m/min, Fr=0.1mm/r, ap=0.15mm
	Roughness: ≤Ra0.6
	Result: Coated CBN inserts have more excellent cutting performance, higher precision, and longer tool life

	Workpiece: Ball screw
	Processing method: continuous cutting
	Workpiece material: Gcr15
	Workpiece hardness: 60-62HRC
	Inserts type: BN-S20 CNGN120708
	Cutting parameters: ap=4.5mm, Fr=0.10mm/r, Vc=95m/min
	Processing method: dry cutting
	Result: The cutting depth of BN-S20 grade inserts is 8 times that of ceramic inserts, and wears normally

	Workpiece: Wind power bearing
	Workpiece material: 42CrMo4
	Workpiece hardness: HRC58-62
	Machining conditions: light interrupted cutting
	Inserts type: BN-H200 RNGN090300
	Cutting parameters: ap=1mm, Fr=0.45mm/r, Vc=145m/min
	Processing method: dry cutting
	Result: Compared with other brand CBN inserts, the BN-H200 grade increases 20% in efficiency and 50% in tool life