Manufacturing capability
Sinker EDM
Sinker EDM is an electrical discharge machining process used to create complex cavities, detailed features, and difficult-to-machine geometries in electrically conductive materials. It is widely used for mold manufacturing, die production, precision tooling, and components requiring shapes that are challenging to produce through conventional milling.
Related process: Electrical Discharge Machining
Manufacturing overview
Sinker EDM, also known as ram EDM or die-sinking EDM, removes material through controlled electrical discharges between a shaped electrode and the workpiece.
The electrode geometry is used to reproduce corresponding features in the material.
Typical applications include injection mold cavities, die components, intricate pockets, narrow ribs, and precision tooling.
Suitable materials include hardened tool steel, stainless steel, titanium, and other electrically conductive alloys.
The process is particularly useful for deep cavities, sharp internal features within process limits, and geometries that cannot be accessed effectively with rotating cutting tools.
Electrode design, wear compensation, flushing conditions, and surface finish requirements influence manufacturing time and accuracy.
Buyers should provide 3D CAD models, technical drawings, material grade, cavity dimensions, tolerances, quantity, and surface finish requirements.
Quality inspection may include CMM measurement, optical inspection, cavity profile verification, and surface integrity assessment.
Metraxio supports sinker EDM RFQs for complex mold, die, and precision tooling applications.