EDM now handles radius of just 0.03 mm

A minimum radius of just 0.03 mm in material up to 20 mm thick can now be profiled on the Fanuc Robocut Alpha-OiA wire EDM using standard brass, piano or tungsten wire of just 0.05 mm diameter

A minimum radius of just 0.03 mm in material up to 20 mm thick can now be profiled on the Fanuc Robocut Alpha-OiA wire EDM using standard brass, piano or tungsten wire of just 0.05 mm diameter.

This, the latest of a long line of Robocut developments available from 600 Centre of Shepshed, Loughborough opens the EDM process to micro-machining and production of ultra-precise component features such as fine gear tooth forms, moulding ribs and high precision die slots.

The minimum initial hole diameter for the 0.05 mm diameter wire is 0.18 mm and maximum distance from upper nozzle to the initial surface is 2 mm.

Even with wire of 0.05 mm diameter, it is still possible to perform automatic wire feed on the Fanuc Robocut while submerged which prevents any formation of oxidisation, helps to maintain cutting accuracy and minimises lost production time.

In addition, recent Fanuc developments such as thermal wire melting, wire annealing and A1 wire breakage repair can still be applied when machining with 0.05 mm wire.

Annealing of the wire eliminates hysteric wire tension and minimises wire deflection helping maintain precise path control while thermal melting gives a smooth edge to the wire and eliminates burring.

The advantage of the Fanuc A1 wire break repair is the provision of automatic re-connection of the wire at the point of breakage without having to return the cut to the start position.

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