CNC Wire EDM Machining

WHEN WIRE EDM IS REQUIRED

• MATERIAL HARDNESS DOES NOT LIMIT THE PROCESS

  One of the main advantages of EDM is that material is removed by electrical discharges rather than a cutting tool.
  After hardening, a precise contour can be produced without the need to re-machine extremely hard material by conventional milling.
  This is particularly relevant for:
  

  • dies;
  • matrices;
  • punches;
  • cutting tools;
  • gauges;
  • hardened machine components;
  • tool steels.
• CONTOURS INACCESSIBLE TO A CONVENTIONAL MILLING CUTTER

  Wire EDM does not require a milling cutter to access the entire profile.
  After a starter hole is produced, the wire can be threaded through the workpiece and used to cut a closed internal contour.
  This makes it possible to produce:
  

  • square and rectangular holes;
  • spline profiles;
  • polygonal holes;
  • shaped fitting profiles;
  • profile windows;
  • complex technological slots.
• MATCHED COMPONENTS FOR STAMPING TOOLING

  A single programmed contour can be used to produce matching components with a specified technological clearance.
  We can combine:
  blank milling
  → preparation of reference surfaces
  heat treatment
  → achieving the required hardness
  Mitsubishi FA20
  → cutting the precision working profile
  surface / jig grinding
  → finishing surfaces
  inspection
  → verification of the finished tooling geometry
• DIES & MOLDS

  The EDM department is part of our complete manufacturing capability for dies, matrices, punches and molds.
  Depending on the design, we can use:
  

  • 3- and 5-axis milling;
  • jig boring;
  • Mitsubishi FA20;
  • Hauser 3SMO;
  • Petewe PFS;
  • surface grinding machines;
  • heat treatment;
  • coordinate measuring inspection.

  This allows us to perform most of the technological route within one production facility.
• PRECISION INTERNAL PROFILES

  The Mitsubishi FA20 allows us to cut internal profiles that are difficult to produce using conventional milling or slotting.
  Wire EDM can be used for:
  

  • internal splines;
  • profiled couplings;
  • shaped fitting profiles;
  • special profiled holes;
  • small batches of non-standard parts.

  The absence of significant cutting force also reduces the risk of deforming thin sections of the component.
• CONTROLLED U/V AXES

  The Mitsubishi FA20 is equipped with additional controlled axes for the wire-guiding system.
  This allows the wire to be inclined relative to the vertical axis and used to produce:
  

  • tapered holes;
  • inclined walls;
  • different upper and lower contours;
  • technological angles;
  • spatially offset profiles.

  This capability is especially useful in the manufacture of stamping tooling and special production tooling.