Technical Guide
EDM for Hardened Steel

Review EDM For Hardened Steel in relation to material behavior, tolerance, surface finish and inspection planning before sending drawings.
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: Why use EDM for hardened steel?
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 | EDM for Hardened Steel |
|---|---|
| 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 should be reviewed for EDM for Hardened Steel?
Material conductivity, thickness, feature access, geometry, tolerance, surface finish and inspection method should be reviewed from the drawing.
How does EDM for Hardened Steel affect process planning?
The machining route depends on the drawing, material condition, geometry, quality requirements and available inspection method.
Which drawing details are important for this topic?
Include material grade, critical dimensions, datums, tolerance, surface finish and inspection requirements.
When should surface integrity be reviewed?
Surface integrity should be reviewed when recast layer, micro-crack risk, fatigue performance, sealing surfaces or post-processing are important.
What should be sent for technical review?
Send drawings, material grade, target tolerance, surface requirements, critical dimensions and any inspection or report expectations.
