GF AgieCharmilles FORM S 350

The AgieCharmilles FORM S 350 is GF Machining Solutions' precision die-sinking EDM for small, detailed parts: 350 x 250 x 300 mm of X, Y and Z travel, a best surface finish of 0.05 μm Ra, and workpieces up to 760 x 460 x 275 mm and 500 kg. It is the only size of the FORM S series, and GF aims it at mold makers dealing with miniaturized and quality-critical components.

The finish figure is the centre of the machine. GF quotes a mirror finish down to VDI -6 / Ra 0.05 on copper-to-steel work, intended to remove manual polishing and the variation an operator brings to it. A dedicated micro-machining generator produces the very small, controlled sparks that sharp inside corners and burr-free edges on tiny features need. For carbide, an embedded generator module adds a finer VDI0 finish with copper electrodes. Advanced thermo-stabilization holds machine conditions steady against the room, which matters when a cavity takes many hours of finishing passes.

The connector application, driven by TECFORM, targets electrical connector moulds with copper or graphite electrodes on steel parts, balancing erosion rate against electrode wear. A Renishaw measuring probe is optional, for setting up coated workpieces where electrical probing does not work.

Physically the FORM S 350 shares its frame with the AgieCharmilles FORM P 350: 1900 x 1690 x 2600 mm, 2400 kg without dielectric, a 150 - 450 mm table to chuck distance and a 0 - 325 mm bath level. Where the AgieCharmilles FORM P 350 lists 0.08 μm and a 700 x 460 x 275 mm workpiece, the FORM S 350 lists 0.05 μm and 760 x 460 x 275 mm. Electrodes on both are limited to 50 kg.