All "Deep Rib Machining" articles

SINKER EDM VS CNC MILLING FOR COMPLEX FEATURES

QUICK ANSWER — SINKER EDM VS CNC MILLING Sinker EDM removes material with a shaped conductive electrode and controlled electrical discharges that erode an electrically conductive workpiece; the electrode never touches the part. CNC milling removes material mechanically with rotating cutters. Sinker EDM is commonly considered for blind cavities, deep narrow features, hardened mold details, and intricate internal geometry a rotating cutter cannot reach or produce economically. CNC milling is generally preferable for accessible cavities, open geometry, bulk removal, and features standard cutters can machine. A combined route is often appropriate. Neither process is universally more accurate, cheaper, or faster.…