Turbine

Turbine Component

Description

The customer, an Indian subcontractor to the aircraft industry, was looking for an automatable solution in order to render the deburring process more reliable and more efficient. The process to be substituted was manual work. Three staff deburred the front and back edges of the bores with carbide blades by hand.

Application details

Application details

  • Number of bores per workpiece: 23
  • Bore diameter: Ø10.7 mm
  • Material thickness: 2.0 mm
  • Material: 17-4 PH steel
  • Hardness: 38-42 HRC
  • Machine: GROB HMC
  • Coolant: external coolant

Proposed solution

Proposed solution

The HEULE sales consultant recommended the COFA8/10.2/S tool for front and back bore deburring in one single pass.

Tool: COFA8/10.2/S
Blade: GH-C-M-0003

Machining parameters:

  • Speed: 35 m/min.
  • Feed:
    forward: 230 m/min.
    backward: 60 m/min.

Benefits for the customer

Benefits for the customer

The production time needed for the complete workpiece could be reduced from 90 minutes down to 20 minutes. The deburring of the 23 bores (46 edges) requires 5.1/2 minutes. In other words, the time savings achieved compared to the manual process amount to roughly 70 minutes. 

The tool consumption was reduced considerably, too. The monthly demand of 400 carbide blades used for the manual work changed to 5 blades only for the COFA tool.

Customer satisfaction

Customer satisfaction

Apart from the time and costs savings, the quality targets aiming for a better and consistent deburring quality were achieved, too. At the same time, the undesired line marks due to the manual work were eliminated. To sum up, the customer is very happy with the results achieved by the process changeover.