Gear disc

Gear Disc

Description

A Chinese subcontractor to the Automotive Industry was looking for a more efficient solution to drill weight reduction holes into a gear disc. The present production process included two manual chamfering operations (front and back chamfering) outside the CNC machine.

Application details

Application details

  • Bore diameter: Ø15 mm
  • Bore depth: 5.85 mm
  • Chamfer: 0.25 x 45°
  • Material: 20Cr Steel
  • Machine: EMAG vertical CNC lathe
  • Coolant: external coolant

Proposed solution

Proposed solution

The HEULE representative proposed a standard VEX-P drill-chamfering combi tool. This tool allows to machine the complete hole in one setting and without any tool change.

VEX-Tool: GH-Q-O-4206
Drill: P-P-D-1500-1H
Chamfer blade: GH-Q-M-03846 

Machining parameters:

  • Cutting data drilling:
    Speed: 1500 rev/min.
    Feed: 0.2 mm/rev.
  • Cutting data chamfering:
    Speed: 1000 rev/min.
    Feed: 0.1 mm/rev.

Customer benefits

Customer benefits

By using the VEX-P tool, the customer reduced the production time considerably by combining the two process operations into a single one.

Customer satisfaction

Customer satisfaction

Besides the elimination of the chamfering as a secondary operation, the customer estimates the improved quality and the reliable process.