Electrical Discharge Machining (EDM) enables precision machining of conductive materials regardless of hardness. Three distinct technologies dominate industrial applications:

• Sinker EDM: Uses custom-shaped electrodes to create 3D cavities (±0.01mm accuracy; ideal for mold cores and turbine blades)

• Wire EDM: Employs continuously moving wire for 2D/tapered cuts (±0.001mm precision; optimal for tooling and medical instruments)

• Micro EDM: Utilizes rotating micro-electrodes (Ø0.03–0.3mm) for features down to 5μm (critical for fuel injectors and medical implants)
  Key differentiators include electrode configuration, dimensional capabilities, and surface finish requirements (Ra 0.05–0.2μm).

CNC machining costs are primarily driven by material selection (40-60%), machine time (amplified by 5-axis complexity), and geometric tolerances (±0.025mm can increase costs 150%). Hidden expenses include tool wear (e.g., $0.38/min for titanium) and post-processing. To optimize:

1. Partner with factory demonstrating ISO-certified 5-axis precision (±5μm)

2. Demand operation-level cost breakdowns

3. Prioritize vendors offering scientific DFM feedback within 24h
   True cost efficiency comes from technical collaboration, not price negotiation – strategic partnerships reduce TCO by 18-32% through process innovation.

Core Value: Enables deterministic transformation of CAD data into dimensionally compliant prototypes, accelerating product validation cycles across automotive, aerospace, medical, and consumer electronics sectors.