I. Product Overview

This CNC brass electrode connection component is a dedicated electrode adapter for EDM spark erosion machining equipment. It is made by CNC turning from national standard brass rod on a lathe, with multi-step stepped shape processed simultaneously. It is assembled with elastic collets. It is used for quick connection and extension of two discharge electrodes, meeting the requirements of EDM machining for deep and narrow cavity molds; the mating contact surface is flat, with stable electrical conductivity. It relies on the collet for quick locking and positioning, easy to assemble and disassemble, and the connection is firm and not prone to loosening or overheating.
Available in materials such as brass, copper, and phosphor bronze for conductivity. Dimensions, hole sizes, and total lengths can be customized according to drawings or physical samples. Support for small batch trials and bulk long-term supply is offered, with the entire production process adhering to ISO9001 quality standard inspections.

II. Core Highlights of Craftsmanship

1. Copper alloy rod material is processed into shape through integrated CNC turning, with high concentricity.
   Whole piece main body single-cutting processing, multi-level steps and positioning slots formed in one, no segmented welding joints. Good coaxiality after electrode alignment, deep cavity discharge processing is not easy to vibrate and deviate, ensuring mold processing accuracy.
2. Elastic clip locking structure, quick disassembly and positioning
   Reserved standard retainer ring installation slots, combined with elastic retaining rings for quick locking, no additional fastening tools required; reliable connection, long-term pulse power supply is not easy to loosen, poor contact, or overheat.
3. Large contact surface conductive design, stable conductive performance
   The contact surfaces of the plug-in holes are fully matched, ensuring uniform current conduction, reducing contact resistance, and low temperature rise under continuous discharge conditions, making it suitable for long-duration mold processing.
4. Fine-tuned burr removal treatment, insertion and extraction smooth without damaging electrodes
   Inner wall and port edge are meticulously deburred, ensuring smooth electrode insertion without scratching the outer round plating, thereby extending the electrode service life.

Section 3: Optional Customizable Raw Materials

1. H62 Brass (Recommended)
   Easy-to-machine, balanced conductivity, high cost-performance ratio, the first choice for the majority of electrode connection scenarios.
2. Cupronickel
   Excellent electrical conductivity, suitable for high current and high power discharge conditions.
3. Phosphor bronze
   Excellent elasticity, suitable for frequent disassembly, assembly, and multiple connection operations.
4. Stainless steel
   High-intensity wear-resistant, non-conductive, used only for mechanical connection and positioning.

4. Optional Surface Treatment Processes

• Brass Natural: Basic general solution, optimal conductivity performance
• Nickel Plating: Enhances anti-oxidation and rust prevention, reduces copper oxidation and blackening
• Gold-plated/Silver-plated: ultra-low contact resistance, suitable for high-frequency discharge machining of high-end precision molds

V. Applicable Application Scenarios

✅ Deep rib, deep cavity plastic injection mold EDM, extended electrode adapter
✅ Aluminum alloy, zinc alloy die casting mold narrow cavity electrospark machining
✅ Deep hole and non-standard slot extended electrode connection for stamping molds
✅ Connector, precision medical device micro-mold discharge processing fixture
✅ Multi-section electrode splicing extension kit for various non-standard EDM equipment

Six, Core Product Advantages

1. Numerical control precision machining, uniform step sizes and bore specifications, high interchangeability.
2. Quick clip lock structure, significantly enhancing the efficiency of electrode disassembly and replacement
3. Total length, aperture, and step structure all support customized non-standard drawings.
4. A variety of conductive materials and electroplating processes are available for selection, suitable for different current conditions.
5. Support single specimen, synchronous processing of complete electrode accessories, stable delivery time

Chapter 7: Common Procurement FAQs Q&A

Q1: Can the corresponding connection joints be processed according to the actual electrode samples?
A: Sure, we can accept CAD drawings or physical sample measurements to ensure a perfect match and connection with the existing electrodes.
Q2: For continuous processing with high current, which surface treatment is recommended?
A: It is recommended to plate silver or gold on brass substrates, as this results in lower contact resistance and smaller temperature rise during continuous operation.
Q3: Can the connector be supplied separately with a snap ring?
A: Support, can be matched with elastic retaining ring for one-stop shipment.
Q4: What causes vibration during post-processing after connection, and can the structure be adjusted?
A: Can optimize the step gap, increase the contact surface, and adjust the tolerance standard according to the working conditions.
Q5: What is the smallest inner diameter specification we can offer?
A: Customized holes can be made according to your electrode outer diameter, and micro tiny electrode transition connectors also support processing.