EDM Machining

Review EDM machining options by process, material, thickness, tolerance, surface finish and drawing requirement before sending an RFQ.

Browse EDM machining routes by process, material, thickness, tolerance, surface finish and surface-integrity concern. Use these routes to understand feature access, finish, tolerance and inspection requirements before project review.

Core EDM Processes
Material Review Pages
Process × Material Review
Thickness / Tolerance / Surface Review

Buyer Navigation

How to Use the EDM Machining Hub

Start from the question closest to your project. A buyer preparing drawings usually needs to confirm the EDM process, material behavior, geometry access, tolerance target and inspection requirement before sending an RFQ.

Start with process

Use Wire EDM, Sinker EDM, Small Hole EDM Drilling or Micro EDM pages when the main question is feature access or machining route.

Then confirm material

Use material pages when heat treatment, conductivity, hardness or surface-integrity risk may affect the quote.

Finish with requirements

Use thickness, tolerance, surface finish and drawing review pages when the part has tight features or inspection-driven requirements.

Capability Snapshot

EDM Project Review at a Glance

Use this snapshot to decide whether your part should be sent for EDM feasibility review. Final process selection depends on the drawing, material, tolerance, surface finish, quantity and inspection requirement.

Processes Wire EDM, Sinker EDM, Small Hole EDM Drilling and Micro EDM for drawing-based project review.

Materials Stainless steel, tool steel, aluminum, copper alloys, titanium, nickel alloys and selected hard materials.

Common Part Features Precision slots, small holes, mold inserts, tooling details, fixtures, internal profiles, prototypes and small-batch parts.

Review Focus Tolerance, thickness, surface finish, recast layer, edge condition, datums and inspection requirements.

Files Accepted STEP, STP, DXF, DWG, PDF, IGS, IGES and ZIP files for EDM feasibility review and quotation.

Buyer Decision Topics

Start with the EDM route that fits your drawing

Compare EDM process fit, material behavior, tolerance, surface finish, surface integrity and drawing requirements before the project is reviewed.

Wire EDM vs. Sinker EDM

Wire EDM is usually better for through profiles and narrow slots while sinker EDM is better for blind cavities ribs and shaped mold features.

Feature access
Through cut or blind cavity
Electrode strategy
Tolerance and finish

View Topic

EDM Drawing and RFQ Checklist

A useful EDM RFQ should include drawing files material grade thickness or feature depth tolerance surface finish quantity and inspection requirements.

Drawing file type
Material grade
Critical dimensions
Tolerance zone

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EDM Tolerance Planning

EDM tolerance depends on material thickness feature geometry flushing pass strategy machine setup and inspection method so final values should be confirmed from the drawing.

Tolerance zone
Material thickness
Feature stability
Skim cuts

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EDM Surface Finish Planning

EDM surface finish depends on process settings finishing passes material behavior and post-processing requirements. Critical surfaces should be marked clearly on the drawing.

Surface finish target
Functional surface
Skim cut need
Post-processing

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EDM Recast Layer and Surface Integrity

Recast layer matters when the EDM surface affects fatigue contact sealing coating or safety-critical performance. These requirements should be stated before quotation.

Critical surface
Fatigue or contact function
Skim cuts
Post-processing

View Topic

When to Use Wire EDM

Wire EDM fits conductive parts that need through profiles narrow slots sharp internal corners stable cutting force or accurate contours from flat or block stock.

Through profile
Slot width
Material hardness
Part thickness

View Topic

Material Review Pages

Material Review 1018 Carbon Steel EDM Machining Review EDM feasibility for 1018 Carbon Steel, including conductivity, heat treatment, tolerance and inspection needs.

Material Review 1045 Carbon Steel EDM Machining Review EDM feasibility for 1045 Carbon Steel, including conductivity, heat treatment, tolerance and inspection needs.

15-5PH Stainless Steel EDM machined part

Material Review 15-5PH Stainless Steel EDM Machining Review EDM feasibility for 15-5PH Stainless Steel, including conductivity, heat treatment, tolerance and inspection needs.

17-4PH Stainless Steel EDM machined part

Material Review 17-4PH Stainless Steel EDM Machining Review EDM feasibility for 17-4PH Stainless Steel, including conductivity, heat treatment, tolerance and inspection needs.

Material Review 2024 Aluminum EDM Machining Review EDM feasibility for 2024 Aluminum, including conductivity, heat treatment, tolerance and inspection needs.

2205 Duplex Stainless Steel EDM machined part

Material Review 2205 Duplex Stainless Steel EDM Machining Review EDM feasibility for 2205 Duplex Stainless Steel, including conductivity, heat treatment, tolerance and inspection needs.

Material Review 3003 Aluminum EDM Machining Review EDM feasibility for 3003 Aluminum, including conductivity, heat treatment, tolerance and inspection needs.

Material Review 300M Alloy Steel EDM Machining Review EDM feasibility for 300M Alloy Steel, including conductivity, heat treatment, tolerance and inspection needs.

Process & Material

Project Confidence

Sample Parts, Inspection Support and Drawing Review

Use these pages to review EDM feature examples, quality coordination steps and RFQ details before a quotation request is reviewed.

EDM machined metal part and feature examples

EDM Sample Parts Gallery Examples of EDM-machined features such as slots, holes, tooling inserts, cylindrical parts, conductive materials and precision machined details.

CMM inspection example for precision EDM machining projects

Quality & Inspection Coordination How drawing details, tolerances, inspection requirements and manufacturing-resource fit are checked before quotation and shipment.

2D engineering drawing review for EDM quotation

Drawing Review & RFQ Preparation What to include in an EDM RFQ: drawing files, material, tolerance, surface finish, key features, quantity and inspection needs.

Browse EDM Directory

EDM Machining Directory

Browse service, material, process-material, thickness, tolerance, surface finish and surface-integrity pages from the same Hub without searching through every EDM topic manually.

Core Services 5 Materials 67 Process × Material 268 Thickness 1,598 Tolerance / Surface 494 Surface Integrity 942

Core EDM Services

Primary EDM process pages for wire EDM, sinker EDM, small hole EDM and micro EDM service review.

View all 5

EDM Service EDM Machining Services Check EDM Machining Services for process fit, drawing access, tolerance, surface finish and inspection requirements. EDM Service Micro EDM Machining Check Micro EDM Machining for process fit, drawing access, tolerance, surface finish and inspection requirements. EDM Service Sinker EDM Machining Check Sinker EDM Machining for process fit, drawing access, tolerance, surface finish and inspection requirements. EDM Service Small Hole EDM Drilling Check Small Hole EDM Drilling for process fit, drawing access, tolerance, surface finish and inspection requirements. EDM Service Wire EDM Machining Check Wire EDM Machining for process fit, drawing access, tolerance, surface finish and inspection requirements.

Material Review Pages

Material-specific EDM review pages for steels, aluminum, copper alloys, titanium, nickel alloys and other conductive materials.

View all 67

Process × Material Review

Pages that match a specific EDM process with a specific material grade for drawing-based feasibility review.

View all 268

Thickness Review Pages

Wire EDM and micro EDM thickness-range pages for checking cutting access, stability, flushing and inspection concerns before quotation.

View all 1,598

Tolerance & Surface Review Pages

Tolerance and surface finish pages for drawings that specify precision, skim cuts, fine EDM finish or inspection-sensitive details.

View all 494

Surface Integrity / Recast Layer

Surface integrity, recast layer and post-processing review pages for EDM parts where edge condition, micro-crack risk or finishing requirements matter.

View all 942

EDM RFQ Support

Send Your Drawing for EDM Review

Upload STEP, STP, DXF, DWG, PDF, IGS, IGES or ZIP files. Include material, thickness, tolerance, surface finish, quantity and any inspection requirements so we can review process fit before quoting.

Request an EDM Quote RFQ Checklist