Removal of metal by ElectroChemical Machining (ECM) for the purposes of deburring, finishing and forming a shape is not new (invented c.1929) and the technology is well established with several variations on the market. Crudely, all rely on a low voltage high direct current to remove metal in predetermined areas by the use of a shaped cathode. The cathode shape is mirrored by the component which itself acts as the anode. An electrolytic solution under pressure flushes the area of operation, keeping it cool, allowing current to flow between the tool and component, and removing the metallic compounds formed.

Dorner have revisited the principals of the technique and have redesigned (and patented) the method of tool approach and current delivery; the Precision ElectroChemical Machining (PECM) range. This has led to previously unobtainable accuracy in producing radiuses, metal removal to high tolerances, and very fine surface finishes (mirror) with no burning or discolouration of surrounding areas; and the electrolyte is environmentally friendly.

Tool wear is practically zero with this new system and the only waste product (filtered out by the machine’s own treatment section for your onward disposal) is metal hydroxide.

Soft and hard metals are processed equally well and components are not subject to any thermal or mechanical stress.

Downloads
» Introduction | » General Deburring | » Gear Deburring | » Burr-free Micro-drilling | » Implant Manufacture | » Blade & Blisk Manufacture