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Comparison of W-EDM and Finecut

In this case we have compared the Finecut system with W-EDM for 1 millimeter shims.

Data for comparison
MaterialStainless steel
Thickness1 mm
Dimensions301 mm x 169 mm
Detail cutting distance3 351 mm
Tolerance requirement±0.02 mm

 

Wire-EDM Cutting
Cutting 10 sheets at the same time takes 1 hour 53 min for piercing and contour cutting with wire-EDM cutting. Hole making in separate machine, i.e. two set-ups.

 

Finecut FAW300

Erosion based cutting with a cut width of 0.3 mm. No heat impact. Hole piercing is done automatically.

Feed rate of maximum of 469 mm/min and minimum 182 mm/min in the corners gives a total cutting time, including piercing time, of 9 minutes and 52 seconds. With the Finecut system the surfaces does not require any after treatment.

The price for individual details with an operating cost of 15 Eur/h is 2.47 EUR/component.

Conclusions

Already without considering the pre-piercing required for the W-EDM the operational time reduction is 87% based on using the Finecut system.

Finecut advantages

  • Quick CAD/CAM preparation
  • Simple fixturing
  • Piercing and cutting in one set up
  • Good surface – no finishing operation required