Process & Material
C360 Brass EDM Thickness Review (500 Mm+)
C360 Brass at 500 mm+ changes how Micro EDM must be supported, flushed, finished, and inspected. The controlling dimension is feature size, electrode size, aspect ratio, discharge stability, fixturing and measurement resolution, not merely the outside stock size.
Quick Answer
For Micro EDM on C360 Brass, treat 500 mm+ as a setup input rather than a guaranteed accuracy band. Confirm the real feature size, electrode size, aspect ratio, discharge stability, fixturing and measurement resolution, material condition, datum, functional faces, and inspection method before assigning tolerance or finish.
Key Thickness Decisions
What This Thickness Range Means
Micro EDM is generally not selected for miniature features reached through more than 500 mm of stock. On C360 Brass, the supplied condition still changes support and surface response. This is the Micro EDM thickness decision; it does not turn the range into a machine promise.
Choosing the Right Setup
For Micro EDM on C360 Brass at 500 mm+, plan electrode wear, feature-to-electrode ratio, micro-flushing, aspect ratio, edge radius, thermal stability, and measurement resolution. Then state the supplied condition, support the functional features, and define surface and inspection requirements separately. Apply the tightest tolerance and finest finish only to the dimensions and faces that control function.
What to Watch For
At 500 mm+, the failure is not simply “too thick” or “too deep.” A microfeature cannot be controlled and inspected through this depth as one conventional EDM operation. Redesign the component, add intermediate access, or split the part so the micro-machined length remains short and verifiable. If the setup ignores that physical progression, the named feature can pass at the accessible face while failing at depth, at the exit, or after unclamping. The C360 Brass condition must be included in the same inspection decision.
Technical Context
A fine electrode and low-energy pulses remove very small volumes without cutting force. At 500 mm+, A microfeature cannot be controlled and inspected through this depth as one conventional EDM operation. Redesign the component, add intermediate access, or split the part so the micro-machined length remains short and verifiable. Control electrode stiffness and wear, micron-scale gap stability, micro-flushing, thermal drift, and metrology resolution. For C360 Brass, the supplied condition still determines support and surface acceptance.
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. |
Thickness Range Reference
| Thickness or depth input | What it means for this process |
|---|---|
| 500 mm+ | Micro EDM is generally not selected for miniature features reached through more than 500 mm of stock. |
| Primary controls | Plan feature depth, electrode size, aspect ratio, discharge stability, edge allowance, and measurement method. |
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. |
| finished bar condition | 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. |
Thickness Impact
C360 Brass is free-machining brass with good conductivity and comparatively easy conventional machinability. In the 500 mm+ setup, state the supplied condition, support the functional features, and define surface and inspection requirements separately. The material condition changes support and surface response, while Micro EDM determines how the feature is accessed and controlled.
Surface and Edge Control
For Micro EDM on C360 Brass at 500 mm+, inspect the functional face or edge from its own datum. Use gentle fixturing and a finish strategy that protects contact, sealing or heat-transfer surfaces. Keep texture, edge condition, recast, corrosion protection, and post-processing as separate acceptance items when service requires them.
C360 Brass Micro EDM Thickness Checkpoints
- Show the actual feature access depth represented by 500 mm+, not only the outside part size.
- Plan feature depth, electrode size, aspect ratio, discharge stability, edge allowance, and measurement method.
- Mark the functional tolerance, finish, datum, and inspection method on the drawing.
Limits and Better Alternatives
Main Limit
The 500 mm+ label cannot replace the real feature size, electrode size, aspect ratio, discharge stability, fixturing and measurement resolution or the supplied C360 Brass condition. EDM is best reserved for geometry that justifies it rather than simple open features.
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 C360 Brass drawing with its condition, the actual feature access depth in the 500 mm+ range, feature geometry, controlled tolerance, surface requirement, quantity, and inspection method.
Practical Takeaway
For C360 Brass at 500 mm+, plan Micro EDM from the real feature axis, support, debris control, and inspection method instead of treating the range as a blanket capability statement.
Request a Machining Feasibility Review
Send material grade, drawing files, tolerance and quantity. We confirm process fit before quoting.
- Process: Micro EDM
- Material: C360 Brass
- Thickness: 500 mm+
- 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.