Technical Guide
What Is Micro EDM?
Learn how micro EDM supports very small conductive features, micro holes, micro slots and inspection-sensitive details.
EDM Feasibility Notes
We review EDM feasibility for the selected material using the drawing geometry, conductive material condition, tolerance, surface finish, quantity and inspection requirements.
Technical Explanation
This guide helps prepare EDM drawings by reviewing material conductivity, process access, tolerance, surface finish and inspection requirements.
Project question: What Is Micro EDM?
Process Capability Facts
We review EDM process fit from material conductivity, feature access, thickness, geometry, tolerance, surface finish and inspection requirements.
Tolerance, Surface Finish and Geometry Review
Typical tolerance and surface finish depend on material, thickness, feature geometry, flushing, finishing passes and inspection method. Final values must be confirmed from the drawing.
Recast Layer / Surface Integrity Notes
Surface integrity, recast layer, micro-crack risk, post-processing and inspection depend on the material, EDM process, geometry and machine setup.
Technical Review Checklist
| Concept | What Is Micro EDM? |
|---|---|
| How we use this guide | We use these points to discuss EDM process fit before confirming the production approach. |
| Drawing review | We confirm material conductivity, feature access, geometry, thickness, tolerance, surface finish and inspection method from your drawing. |
| Project details | Please include drawings, material grade, critical dimensions and any required inspection or surface-integrity controls. |
Inspection and Capability Reference
Inspection planning may include dimensional measurement, optical measurement, surface roughness checks and report requirements according to the drawing.
Technical Note
Use this technical guide to prepare your drawing and key requirements, then contact our team when you need project-specific EDM review.
Need help reviewing an EDM drawing?
Send a drawing question, material details and key requirements for technical review.
Frequently Asked Questions
What design details matter for micro EDM?
Feature size, aspect ratio, electrode access, material conductivity, fixturing, tolerance and inspection method are important.
Why are feature size and aspect ratio important?
Very small or deep features can be limited by electrode strength, flushing, debris removal and measurement method.
What inspection method is needed for micro EDM?
Inspection may require optical measurement, microscopy or other suitable methods depending on feature size and tolerance.
Can micro EDM be used for every small part?
No. The material must be conductive, and the feature geometry, access and inspection method must be reviewed.
What files are needed for micro EDM review?
Send 2D or 3D drawings, material grade, feature size, tolerance, surface finish and inspection requirements.