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LiebherrGear technology and automation systems
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Precise – reliable – cost-effective

This is the chamfering process.

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.

Advantages

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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.

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

This video is provided by Google*. When you load this video, your data, including your IP address, is transmitted to Google, and may be stored and processed by Google, also for its own purposes, outside the EU or the EEA and thus in a third country, in particular in the USA**. We have no influence on further data processing by Google.

By clicking on “ACCEPT”, you consent to the data transmission to Google for this video pursuant to Art. 6 para. 1 point a GDPR. If you do not want to consent to each YouTube video individually in the future and want to be able to load them without this blocker, you can also select “Always accept YouTube videos” and thus also consent to the respectively associated data transmissions to Google for all other YouTube videos that you will access on our website in the future.

You can withdraw given consents at any time with effect for the future and thus prevent the further transmission of your data by deselecting the respective service under “Miscellaneous services (optional)” in the settings (later also accessible via the “Privacy Settings” in the footer of our website).

For further information, please refer to our Data Protection Declaration and the Google Privacy Policy.*Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland; parent company: Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA** Note: The data transfer to the USA associated with the data transmission to Google takes place on the basis of the European Commission’s adequacy decision of 10 July 2023 (EU-U.S. Data Privacy Framework).

ChamferCut

Economic efficiency

Workpiece (chamfering)
Workpiecespeed gear
Module2.7 mm
Number of teeth41
Helix angle24.5°
Press chamfering (with burnishing)ChamferCut
Press chamfering tool4,700 EuroChamfer cutter (set)3,600 Euro
Number of re-sharpenings123
Total workpieces95,445468,293
Tool costs/workpiece6.7 cents1.5 cents

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