Advanced Special Process Technology

3g Multi Hole Drill EDM - Production EDM

A multi hole drilling (MHD) EDM machining centre for producing multiple cooling holes in turbine blades and vanes. The system has capability to produce straight, shaped and slotted holes. The dielectric can either be traditional oil based fluids or de-ionised water for rapid machining rates.

The Tech-Pulse EDM generator is a multi mode output type, allowing optimised use of Tungsten electrodes, Graphite and Brass or Copper tubes. The programmable generator allows for full parameter control during the EDM cycle and the ability to change process parameters with depth, thus optimising the process in all area’s of the cut. A two axis system allows for shaped holes to be produced using standard rod type electrodes.

The system is designed for volume production; and use of cassette type tooling enables rapid change over between operations. The tank fill time of 8 seconds and drain time of 4 seconds minimizes non cutting time on this production system.

Specification

• Z 200mm

• Z2 40mm drill stroke

• X 5mm (Fan stroke)

• 30 Electrode channels

• 50 Amp output

• 100 Generator programmes

Key features

• Programmable generator

• Process data logging & printout

• 3D fan shaped holes

• Auto fast fill and auto drain

• Integrated compact construction

• High response DC servo

• Automated operation

• Simple electrode re-feed