DA tri ram machine
pECM designs and builds custom Electro-chemical machines. Their principal competitive advantage over conventional machining methods (milling and EDM) is their ability to machine the newer nickel and titanium based materials used in ‘high-tech’ applications (e.g. aero engines, gas turbine blades) to a greater degree of accuracy and much more quickly.
Some examples of the machine’s output are high tolerance molding and stamping tools, precision gears, aerospace vanes and electric shaver heads. More recently, pECM’s ECM machines have been used to finish and polish knee implants for a multinational orthopedic company.
Steve Duffield’s design and development work in the field of ECM has been recognized by its winning 2 Small Firms merit Awards for Research and technology (SMART) for innovation.
The first SMART award was for a feasibility award around the PECM technology, to prove that with suitable controls the process could be controlled very accurately and then could be applied to other non-traditional ECM markets.
ECM in its simplest form has been applied to large, high value, difficult to machine components but because of the large machining gaps detail was impossible to produce. This first SMART award showed that the technology could be applied to small intricate applications such as tablet punches and minting dies.
The second SMART award was to develop an ‘ECM Milling machine’. With this technique, simple electrodes could be used to machine complex shapes, as with a conventional.