Cross section graph showed HPEEM technology, electrode fixed position is in the pinhole of piston of a Monosteel. Electrolyte flows road and shape the surface is tagged with orange outstanding. The company of door of manufacturing Shang Hui of dynamical system spare parts (Federal-Mogul) , machining the new method that does not have lining steel piston to commercialize for engine of heavy diesel oil. They allege: Its are tall accurate report corrodes treatment (HPEEM) craft (the mutation means of settlement that a kind of electrochemistry machine) , help motive manufacturer domestic production achieves strict whole world to discharge a standard, raise the fuel economy, part that prolong spare parts life and does not want sacrificial engine performance. Forehead of market of steel piston whole world can amount to 200 million dollar. Brightness door company predicts: Current the steel piston of about 30% has lining on pinhole. But from 2012 in the future, because higher load needs cost of sue for peace to consider, all and heavy-duty derv engine piston will absolve lining. Have a design that is aimed at engine manufacturer among them, expectation achieves the goal that at present the whole world discharges to lower carbon dioxide, namely " taller crock approachs peak value " . It asks every spare parts (e.g. steel piston) the definition that size and appearance satisfy a few micron. Want to realize the pinpoint accuracy such as this, the innovation sex that need does not raise manufacturing cost or limits product reliability solution. Electrochemistry treatment is a kind " change direction eletroplate " craft: Not be to gave the surface to add a metal, corrode however. HPEEM craft is pilot of a kind of height report corrodes a method, move the material besides specific amount, cast piston pinhole accurately, raised bear to change the dependability of ability and piston. Brightness door company installed graceful fort to develop this to cover HPEEM in Michigan advanced production technology develops device, already was located in Mexico in the company at present the piston plant investment of the city uses Puaibula. In Mexican general dust cloth helps a city, through HPEEM special spirit is mixed smally, accurately shaping pinhole, produce Monosteel piston, allow to pass a connecting rod, need not lining can assemble a piston. In this treatment craft falls, can win particularly close together pinhole figure, make this kind of design produces business to OEM for, the design is reliable, the price also can bear. And, the piston can obtain the cylinder pressure that increases ceaselessly, the property that keeps able-bodied at the same time and durable sex -- reduced engine to discharge. Produce these parts with traditional method, need the machining center with a design, installation and operation high cost, because of traditional method must can move cut tool accurately in pinhole, so that come according to the appearance of need,shape. HPEEM uses a kind of blame to contact, appearance is special and the electrode of exact in pinhole location. If appropriate ground controls voltage and electrolyte, with respect to the steel face that can use electrochemistry treatment to corrode piston pinhole. To Monosteel pinhole, HPEEM has electrolyte to flow between electrode and pinhole surface. Between spare parts and electrode, application controls voltage to corrode material from pinhole surface. Electrolyte sheds meeting rinse out to move the material in hole of consist in piston leaving after dividing. Such pinhole can arrive accurately a few micron. "This craft is simple the ground is admirable, " brightness door (the Rainer Jueckstock of senior vice president of unit of energy of Federal-Mogul) power system says: "Serve as processing aid as electrolyte and electric field through using brine in great quantities, we had developed HPEEM to machine piston pinhole, can machine very accurately without by accident, it may be said surmounted any traditions to machine quality - of cost weigh measure. " explanation of chief inspector of advanced production research and development Dr. William Zdeblick says: "Ask without lining Monosteel piston steel is designed truly to aluminium. Analyse and measure show this design is feasible, the appearance of taller precision needs to so that appropriate ground distributings,be put on piston pinhole bear. The accord that must realize an appearance to cave is spent, arrive accurately a few micron. Any deviate that machine a target, cause the huge risk that high pressure concentrates possibly. " Zdeblick continues respecting, "Groovy method machines cost more without lining steel piston, because accuse to selling,shape the requirement is taller, more accurate. HPEEM craft allows Federal-Mogul(brightness door) move except lining, still can offer the piston that can satisfy durable sex requirement for the client, unlike tradition treatment needs to raise high cost in that way. Unlike tradition treatment needs to raise high cost in that way.. CNC MillingCNC Machining