Modern Machine Shop
Emag introduces its electrochemical machining (ECM) and precision electrochemical machining (PECM) machines, already available in Europe, to the North American market.
ECM is a noncontact machining process involving the electrolytic dissolving of metal substrates. This technique is often used with difficult-to-machine materials such as Inconel, high-nickel alloys and titanium. According to the company, the process is not subject to the variances inherent to conventional machining. The ECM process is characterized by stress-free stock removal and smooth, precise transitions in machining contours with burr-free surfaces.
Emag’s EMC and PECM technologies can provide surface finishes to Ra 0.05, depending on the material, and reproducible cutting depth to <20 µm. The machines offer low tool wear on the cathode, no negative thermal or mechanical effects on the material, and high repeatability. Other benefits include capability for nano and thin-walled section contours, high precision, and the ability to rough, finish and polish on one machine. Users can employ multiple fixtures and run the process simultaneously.
Standard features offered on the Emag ECM Basic Series machines include a Siemens S7 controller with a full graphics display, current relay and voltage monitor, pH control and conductance monitor, temperature control module, a machining area of 1,150 × 950 mm (45.27" × 37.40"), and two-handed operator safety controls. The company also provides ancillary equipment interfacing for work cell setups, including pre- and post-op cleaning stations and multiple machining units, as well as robotic workpiece handling.
The PECM machines operate on the same basic principle of electrolytic dissolution, but include a mechanical oscillation mechanism for more intricate 2D and 3D micro-structures. All standard machines include scalable generator technology up to 30,000 amps, pulse frequencies to 100 kHz and a machine base of Mineralit or granite.