For high production automotive parts and components, PEM is the ideal machining solution. The non-contact PEM machining process delivers intricate micro- and macro-structures in metals that are difficult to machine using conventional methods.

Typical Applications:

• Injector nozzles
• Fuel systems
• Valve plates
• Turbine discs
• Gears
• Hydraulic components
• Compressors
• Turbochargers
• Full-form gear profiles
• Crank shaft details
• Critical nuts & bolts features
• Impellers
• Oil flow features
• Pistons
• Planetary carrier shafts

PEM’s stress-free process removes metal atom by atom to produce fully-formed gears

High quality gears for precision meters are machined burr-free, six at a time, in a standard PEMTec machine. Although surface finish is material dependent, many materials are machined to very smooth finishes, with some as good as 1-4 in Ra. PEM machining is a full form precision machining process that usually starts with a solid blank or a preform of the component geometry. The electrode used to machine the turbine wheels in this example is a negative of the turbine wheel geometry less the machining gap for electrolyte. Eight turbine wheels are machined in one 45-minute machining cycle.