Wire electro discharge machining (WEDM) – also known as spark erosion – uses electric current and fine wire to cut conductive materials with low residual stress to exceptionally tight tolerances.
WEDM offers tolerances to ±0.005mm and surface finishes to Ra 0.1µm, removing the need for subsequent polishing. The process is burr-free, distortion-free and can be used to machine exotic materials which are work-hardened, ductile or brittle.
As the axis of this wire can be rotated, taper-cuts, free-curves and complex geometries can be achieved with exceptionally straight profiles, allowing components to be stacked for low-mid volume production.
CNC machining is a manufacturing process in which pre-programmed computer software dictates the movement of factory tools and machinery. The process can be used to control a range of complex machinery, from grinders and lathes to mills and routers. With CNC machining, three-dimensional cutting tasks can be accomplished in a single set of prompts.
Short for “computer numerical control,” the CNC process runs in contrast to — and thereby supersedes — the limitations of manual control, where live operators are needed to prompt and guide the commands of machining tools via levers, buttons and wheels. To the onlooker, a CNC system might resemble a regular set of computer components, but the software programs and consoles employed in CNC machining distinguish it from all other forms of computation.