Electrode Body/Shank: Diameter 3-20 mm, Length 50-300 mm

Q: What materials are best for EFO electrode bodies?

High-purity copper offers excellent conductivity, while tungsten-copper alloys provide better wear resistance for high-temperature applications.

Q: How does electrode body straightness affect EDM performance?

Straightness within 0.02 mm/100 mm ensures consistent spark gap and prevents arcing, crucial for precision machining.

Component Specifications

Definition

The electrode body or shank is the central structural component of an EFO (Electrical Flame-Off) electrode or wand, designed to conduct high-voltage electrical current from the power source to the electrode tip. It maintains precise dimensional stability and electrical conductivity while withstanding thermal and mechanical stresses during spark erosion processes.

Working Principle

Functions as an electrical conductor that transmits pulsed DC or AC current to create controlled electrical discharges (sparks) between the electrode tip and workpiece, enabling precise material removal, welding, or surface modification through thermal erosion.

Materials

High-purity copper (C10100/C11000), tungsten-copper alloys (WCu), silver-tungsten (AgW), or graphite composites with conductivity >90% IACS, thermal conductivity >200 W/m·K, and hardness >80 HRB.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	50-300 mm
Diameter	3-20 mm
Conductivity	>90% IACS
Surface Finish	Ra 0.8-1.6 μm
Electrical Resistance	<0.1 Ω/m
Straightness Tolerance	≤0.02 mm/100 mm

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 12176-2, DIN 8580

Parent Products

This component is used in the following industrial products

EFO Electrode / Wand

The conductive component in an Electronic Flame-Off (EFO) unit that generates and directs the electrical discharge for precise material processing.

View Product Details

Engineering Analysis

Risks & Mitigation

Electrical arcing due to contamination
Thermal deformation under continuous operation
Galvanic corrosion in coolant environments

FMEA Triads

Trigger: Surface oxidation reducing conductivity
Failure: Inconsistent spark generation and poor machining quality
Mitigation: Regular cleaning with non-abrasive solvents and protective coatings

Trigger: Mechanical vibration during operation
Failure: Premature wear and dimensional inaccuracy
Mitigation: Proper clamping with vibration-damping holders and periodic alignment checks

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.01 mm diameter, ±0.05 mm length

Test Method

ISO 12176-2 for dimensional verification, ASTM B193 for conductivity testing

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Electrode Body/Shank

Manufacturer profiles associated with Electrode Body/Shank.

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Frequently Asked Questions

What materials are best for EFO electrode bodies?