Precise – reliable – cost-effective

This is the chamfering process.

Advantages

The ChamferCut process

Very precise chamfer geometry
Premium chamfer quality and reproducibility
No bulging or material deformation
Standard tooth-root chamfering
Established process in gear production
Very long tool life
ChamferCut tools can be re-sharpened approx. 20 times easily and cost-effectively
Lower tool costs compared to alternative processes
Short amortization period due to low tool costs
Applications for gears with module 0.8-42 mm
2nd cut not needed for gear hobbing - longer tool life for the hobbing tool
Short setup time

Liebherr solution

Gear hobbing machine LC 180 DC and LC 280 DC

The established LC 180 DC and LC 280 DC with integrated ChamferCut unit is a very compact gear hobbing machine. This integrated automation solution enables hobbing and simultaneous chamfering of workpieces with a maximum diameter of 280 mm and a module of 5 mm.

Gear hobbing machine LC 300 DC

With the LC 300 DC gear hobbing machine workpieces with a maximum diameter of 300 mm can be produced very economically, with a high gear cutting quality and precise chamfer quality. Workpieces up to module 6.5 mm can be hobbed and simultaneously chamfered.

Chamfering machines LD 180 C and LD 280 C

The LD 180 C and LD 280 C are compact stand-alone machines whose main task is the chamfering of gears. They can be integrated easily, quickly and cost-effectively into all existing production/manufacturing lines.

liebherr-chamfer-cut-parallel-chamfering

Chamfering in the work area

The classic ChamferCut process with the chamfer cutters on the hob arbor can be retrofitted on all existing Liebherr gear hobbing machines with Siemens 840 D control and higher.

Videos

ChamferCut
LC 180 DC
LC 300 DC
LD 300 C

ChamferCut

Economic efficiency

Workpiece (chamfering)
Workpiece	speed gear
Module	2.7 mm
Number of teeth	41
Helix angle	24.5°
	Press chamfering (with burnishing)		ChamferCut
Press chamfering tool	4,700 Euro	Chamfer cutter (set)	3,600 Euro
Number of re-sharpenings	1		23
Total workpieces	95,445		468,293
Tool costs/workpiece	6.7 cents		1.5 cents

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After chamfering with the patented ChamferCut technology, no additional machining is necessary. There is no need for a second cut, which is often required during the deformation-based deburring process for the removal of build-up material. With the chamfering process, the exact chamfer form is produced. In contrast to deformation-based processes, the material structure is not affected. An optimal starting point is created for the subsequent finishing of hardened gears, particularly gear honing. The quality of such chamfers defines a new standard – with maximum repetitive accuracy.