The PEMprocess – the advantages in detail
 
– Workpiece can be moulded from the electrode
– No electrode wear – dimensional accuracy within the series
– No microstructure change on the workpiece as no process-related
   thermal or mechanical loads evolve
– Eminently suitable for small and large series as well as the manufacture
   of prototypes
– Inexpensive process
– Maximum corrosive resistance, favourable cleaning and sterile
   characteristics
– Largely particle-free
– Process- and product-neutral
– Absolutely burr-free
– Processing independent of material hardness
– Roughing/Smoothing/Polishing possible in a single work step
– Processing super-alloys (Inconel, Hastelloy etc.)
– Precisely-formed machining of practically all metals
– Simultaneous processing of macro- and micro-structures
– High surface quality – high replica accuracy (± 2-5 μm tolerance) 
– Standard surface quality of Ra </= 0.05 μm (depending on the surface 
   quality of the electrodes used; in many cases, even smaller values are 
   possible depending on the process, material and electrode) 
– Short machining times: feed rates of between 0.1 and 2 mm per minute 
   can be realised depending on the material and application – non-contact  
   machining
– Deburring in macro- and micro-ranges
– No workpiece reworking required as no material adhesion or coatings
   form
– Practically unlimited choice of electrode material (conductive depending 
   on piece numbers)

 

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