Graphite Electrode for EDM Electrical Discharge Machining
Product Overview
EDM (Electrical Discharge Machining) graphite electrodes are widely used in mold and die manufacturing for precision metal removal. Graphite electrodes offer advantages over copper electrodes including faster machining speed, lower wear, easier machining, and lighter weight for large molds.
Our EDM graphite electrodes are available in various grain sizes and grades to match different precision requirements, from roughing to fine finishing operations.
Key Advantages Over Copper
- Faster machining and EDM cutting speed
- Lower electrode wear for better accuracy
- Easier to machine and engrave
- Lighter weight for large mold applications
- No deformation during EDM process
- Higher melting point than copper
- Lower material cost for large sizes
Available Grades
| Grade | Grain Size | Density | Resistivity | Application |
|---|---|---|---|---|
| Fine Grain | 5 micron | 1.75 g/cm3 | 15 uOhm-m | Precision finishing |
| Medium Grain | 10 micron | 1.72 g/cm3 | 16 uOhm-m | General EDM |
| Coarse Grain | 20 micron | 1.68 g/cm3 | 18 uOhm-m | Roughing operations |
| Ultra Fine | 2 micron | 1.80 g/cm3 | 14 uOhm-m | Mirror finishing |
Common Uses
- Injection mold making
- Die casting mold manufacturing
- Stamping die production
- Automotive parts tooling
- Consumer electronics mold making
- Aerospace component machining
Why Buy From Jincheng?
- Multiple EDM grades available from stock
- Precision sawing and machining service
- Custom electrode fabrication per drawings
- Competitive pricing for bulk orders
- Fast delivery: 3-7 days for standard sizes
- Exported to 30+ countries
- Technical support for grade selection
- Quality inspection before shipment
FAQ
Q: What graphite grade should I use for precision EDM?
A: For precision finishing and mirror surfaces, ultra-fine grain graphite (2 micron) is recommended. For general purpose EDM, medium grain (10 micron) offers the best balance of performance and cost.
Q: Can you machine graphite electrodes to my drawings?
A: Yes, we provide complete EDM electrode machining services including milling, drilling, and finishing to your exact specifications.
Q: What sizes of graphite electrode blocks do you stock?
A: We stock standard blocks up to 400mm x 600mm x 300mm. Larger sizes can be custom ordered.
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