Technical Reference
EDM Inspection Requirements Technical Reference
EDM inspection requirements should follow the functional dimensions, surfaces, and material risks—not a generic request to inspect everything. Inspection requirements added after machining can require new fixtures, samples, destructive sections, allowance, or a repeated run.
Quick Answer
EDM inspection requirements should follow the functional dimensions, surfaces, and material risks—not a generic request to inspect everything.
RFQ Preparation Points
What to Send
An undefined “full inspection” note creates cost without telling production how the part will be accepted. The consequence changes fit, function, or service performance for the Inspection Requirements decision; it is not only a change in surface appearance.
How to Use the Files
State the datum, method, report format, sampling, and separate checks for roughness, recast, edge, hardness, or certificates. When planning Inspection Requirements, apply the requirement only to the dimensions and faces that control fit, function, service life, or documented release.
What Causes Delays
Inspection requirements added after machining can require new fixtures, samples, destructive sections, allowance, or a repeated run. State dimensional, roughness, recast, crack, material, and report needs before quotation.
What Each Input Does
A controlled EDM review separates geometry files from requirement files. The model defines shape; the drawing defines material, tolerances, functional surfaces, datums, revision, and inspection. Missing either one forces assumptions that must be resolved before production. This mechanism explains the limits and behavior that matter when planning Inspection Requirements.
EDM Inspection Requirements Reference
| What you're asking | What you can expect |
|---|---|
| Input | Purpose |
| 3D model | geometry and programming |
| 2D drawing | material, datums, tolerance, surfaces, notes |
| Quantity | prototype and batch planning |
| Inspection | method, report, and acceptance |
| Revision | controls the released requirement |
How the Review Uses the Information
Use a preliminary marked sketch for budget guidance, then release a controlled model and drawing before production. Inspection requirements added after machining can require new fixtures, samples, destructive sections, allowance, or a repeated run.
Inspection and Surface Inputs
The drawing should identify which dimensions, surfaces, edges, and reports are required. Missing surface or inspection information should be listed as a quotation assumption, not silently converted into a default requirement. For Inspection Requirements, tie the accepted condition to the feature and inspection method named in the drawing.
Inspection Requirements Drawing and Release Checkpoints
- Identify the controlled feature, material condition, access direction, and functional datum for this Inspection Requirements decision.
- Separate dimensional requirements from texture, edge, recast, corrosion, fatigue, or post-process acceptance.
- State the inspection method, sampling or first-article requirement, drawing revision, quantity, and any documentation needed for release.
Practical Next Step
The drawing should identify which dimensions, surfaces, edges, and reports are required. State the datum, method, report format, sampling, and separate checks for roughness, recast, edge, hardness, or certificates.
What to Remember
EDM inspection requirements should follow the functional dimensions, surfaces, and material risks—not a generic request to inspect everything. Quotation and production should use the same controlled revision, material, quantity, process scope, and inspection requirements.
Technical Reference
Use the values as planning references and define the functional requirement on the controlled drawing.
Use This Guide to Prepare Your RFQ
Contact us when your drawing and requirements are ready for review.
- Drawing or part sketch
- Material grade
- Thickness / part size
- Quantity
STEP/STP, DXF, DWG, PDF, IGS/IGES or ZIP.
Confidential drawing review. NDA support available on request.
Frequently Asked Questions
Is a 3D model enough?
No. It does not release material, tolerances, surfaces, or inspection.
Can a sketch be quoted?
Yes for a rough budget; production needs controlled files.
When should inspection be defined?
Before quotation and setup.
What causes the most delays?
Missing material condition, datums, functional callouts, quantity, or report scope.