Process & Material
C110 Copper Micro EDM Feasibility Review
C110 Copper can be machined with Micro EDM when the geometry matches micro holes, micro slots, miniature cavities, fine pins, and sub-millimeter precision details. C110 Copper is nearly pure copper with very high electrical and thermal conductivity; the supplied condition affects support, discharge energy, finishing, and inspection.
Quick Answer
Micro EDM is suitable for C110 Copper when the feature is a micro hole, micro slot, miniature cavity, fine pin, or other sub-millimeter detail. The supplied condition must be stated before tolerance and surface requirements are confirmed.
Key Material Decisions
How This Material Behaves
Nearly pure copper with very high electrical and thermal conductivity. In Micro EDM, the supplied condition directly changes discharge stability, electrode wear, edge quality, and the finishing plan—especially at micro scale.
Choosing the Right Condition
Choose Micro EDM for micro holes, micro slots, miniature cavities, fine pins, and sub-millimeter precision details. State the exact C110 Copper condition, then set tolerance, finish, support, and inspection from the controlled feature rather than the whole part.
Risks to Manage
For Micro EDM, soft edges and high heat flow change discharge efficiency and fixturing. Temperature drift and electrode calibration can consume the remaining dimensional allowance before the feature is measured during the final sizing of a sub-millimeter slot, hole or datum feature, especially around soft contact edges and compensation-sensitive geometry. The practical failure in C110 Copper is overcut, soft-edge damage and tool wear acting within the same small tolerance. For C110 Copper, use nonmarking support, conservative compensation and a finishing sequence that limits overcut and edge rounding. Use calibrated electrodes and metrology that resolves the actual remaining tolerance; document overcut, edge rounding, clamp marks and functional contact surfaces for C110 Copper.
How Micro EDM Works on C110 Copper
Micro EDM uses a very small electrode and low discharge energy to machine miniature features in C110 Copper. Electrode wear, spark-gap stability, micro-flushing, temperature control and measurement resolution consume a significant share of the available tolerance. The local feature size and aspect ratio—not the overall workpiece size—must define the route.
Micro EDM Capability Reference
| What you're asking | What you can expect |
|---|---|
| Feature types | micro holes, micro slots, miniature cavities, fine pins, and sub-millimeter precision details |
| Tolerance | ±0.002–0.010 mm |
| Surface finish | Ra 0.1–1.6 μm |
| Feature scale | Sub-millimeter holes, slots, and cavities |
| Primary micro limit | Electrode wear and measurement resolution |
| Main limitation | Loose-tolerance or easily accessible features are rarely economical with Micro EDM. |
Material Condition Reference
| Condition | What to expect | Watch out for | Surface notes |
|---|---|---|---|
| annealed | Use gentle fixturing and adjust energy for high conductivity. | Soft edges can mark or roll under poor support. | Keep contact, bearing, and cosmetic faces as separate finish requirements. |
| half-hard | Balance work-hardening stress with wear compensation. | Thin sections can move and micro features can round as electrodes wear. | Inspect edge radius and functional texture. |
| hard-drawn | Use conservative finishing on hard-drawn or aged stock. | Over-finishing can remove useful texture or shift contact dimensions. | Apply finishing only to functional faces. |
How This Material Behaves
C110 copper is very soft and has exceptionally high electrical and thermal conductivity. In EDM, this means heat is carried away quickly, so stable discharge and flushing can be harder to maintain than on steel, while edges and contact faces mark easily during handling. Use rigid support, tuned low-energy finishing, and protect or clean functional electrical surfaces immediately after machining. For Micro EDM, soft edges and high heat flow change discharge efficiency and fixturing. At micro scale, heat dissipation, local phase response and soft-edge damage can consume the remaining feature tolerance.
Surface Integrity and Post-Process
For Micro EDM on C110 Copper, use gentle fixturing and a finish strategy that protects contact, sealing or heat-transfer surfaces. Use low-energy finishing and account for electrode replacement or calibration before final sizing. Specify edge, recast and post-process requirements only on functional microfeatures, and use metrology that can distinguish true size from edge rounding and surface residue.
C110 Copper Micro EDM Checkpoints
- Confirm that the feature matches micro holes, micro slots, miniature cavities, fine pins, and sub-millimeter precision details.
- State the supplied condition: annealed, half-hard, and hard-drawn.
- Mark the controlled dimensions, functional surfaces, datum scheme, and inspection method.
Typical Parts and Features
- electrical contacts
- electrodes
- busbar details
- micro holes
- micro slots
- miniature cavities
Limits and Better Alternatives
Main Limit
Loose-tolerance or easily accessible features are rarely economical with Micro EDM. On C110 Copper, soft edges and high heat flow change discharge efficiency and fixturing; the supplied condition still controls support, finishing, and surface-integrity review.
Consider Another Route When
Use conventional EDM for larger features, precision laser processing for suitable thin geometry, or mechanical micro-drilling where a tool can reach.
Practical Next Step
Send the C110 Copper drawing with condition, controlled geometry, tolerance, functional surface callouts, quantity, and inspection requirements. If the route is unclear, we will compare Micro EDM with the adjacent EDM or conventional process.
Practical Takeaway
C110 Copper is compatible with Micro EDM when the feature matches the process access. The supplied condition determines support, finishing, surface control, and inspection.
Request a Machining Feasibility Review
Send material grade, drawing files, tolerance and quantity. We confirm process fit before quoting.
- Process: Micro EDM
- Material: C110 Copper
- Drawing or part sketch
- Material grade
- Thickness / part size
- Quantity
- Tolerance and critical dimensions
- Surface finish or inspection requirement
STEP/STP, DXF, DWG, PDF, IGS/IGES or ZIP.
Confidential drawing review. NDA support available on request.
Frequently Asked Questions
Can C110 Copper be machined with Micro EDM?
Yes, when the feature is a micro hole, micro slot, miniature cavity, fine pin, or other sub-millimeter detail. C110 Copper is electrically conductive and the final route follows the feature geometry and supplied condition.
What controls Micro EDM on C110 Copper?
The main process controls are electrode wear, feature-to-electrode ratio, micro-flushing, aspect ratio, edge radius, thermal stability, and measurement resolution. The C110 Copper condition adds dimensional-stability and surface-integrity requirements.
What is the main risk?
For Micro EDM, soft edges and high heat flow change discharge efficiency and fixturing. Temperature drift and electrode calibration can consume the remaining dimensional allowance before the feature is measured during the final sizing of a sub-millimeter slot, hole or datum feature, especially around soft contact edges and compensation-sensitive geometry. The practical failure in C110 Copper is overcut, soft-edge damage and tool wear acting within the same small tolerance. For C110 Copper, use nonmarking support, conservative compensation and a finishing sequence that limits overcut and edge rounding. Use calibrated electrodes and metrology that resolves the actual remaining tolerance; document overcut, edge rounding, clamp marks and functional contact surfaces for C110 Copper.
What should I send for review?
Send the drawing, exact C110 Copper condition, controlled geometry, tolerance, functional surface requirements, quantity, and inspection expectations. If any item is undecided, send what you have and we will help complete the review.