Electrifying' corner accuracy: GFMS gives an insight into EDM achieving accurate angles and tight radii - plus low electrode wear

摘要

Electrical discharge machining (EDM) is a non-contact metal-removal process that can cut complex shapes to accuracies of ±lμm - and generate surface finishes finer than Ra 0.1μm in hardened and difficult-to-machine conductive materials, without the creation of distortion or stress. Wire and die-sinking EDM offers the only practical way to achieve the precise component accuracies and finishes required in some critical applications - such as those for the medical, aerospace, electronics and other industries. Coventry-based GF Machining Solutions Ltd (GFMS - www.gfms.com/uk) - a supplier of milling, EDM, laser texturing and automation technologies - says maintaining such high levels of accuracy, especially when producing corners, sharp angles and tight radii, requires close control of multiple elements in the EDM process.