Gas Turbine Engine

Descripción

The Korean aircraft turbine manufacturer was looking for a cost-efficient, yet reliable solution for the application of back spot facings on the casing of their gas turbines.

Application details

Application details

  • Main bore: Ø7.0 mm
  • Spot facing / Counterbore: Ø15.0 mm
  • Ratio Ø-main bore to Ø-spot facing = 2.14
  • Depth: 4.5 mm
  • Working length: 5.3 mm
  • Material: M152
  • Machine: STARRAG 5-axis

Proposed solution

Proposed solution

HEULE recommends its Back Spot Facing tool BSF-A-0700/040-7.5. BSF brings together a simple working principle together with a high reliability. The BSF tool counterbore diameters of up to 2.3 times the bore diameter.

Machining parameters:

  • Cutting data:
    Speed Vc = 10m/min. = 212 rev/min.
    Feed F = 0.02 mm/rev.
  • Activation speed:
    S = 15.0 : 7.0 = 2,14
    2.14 > 1.8 = Minimum 2000 rev/min.

Customer benefits

Customer benefits

This application for the aircraft industry is dependent on a high level of process capability. In addition the high value of the workpiece necessitates an equally high level of reliability.

The favourable price/performance ratio is responsible for a comparatively cost-efficient machining process.