Tolerance & Surface Finish | EDM Technical Reference Library
Technical pages about EDM tolerance, surface finish, skim cuts, fine pass strategy and inspection planning.
Technical pages about EDM tolerance, surface finish, skim cuts, fine pass strategy and inspection planning.
- 8 EDM review pages in this section
- Grouped by process, material, application, thickness, tolerance and drawing requirement
- Use the cards below to find the closest review path before sending a drawing
Browse Review Pages
Tolerance & Surface Finish
Use this directory to find EDM review pages by process, material, application, thickness, tolerance, surface finish or drawing requirement.
Technical Reference
EDM Surface Finish Guide
EDM surface finish follows discharge energy and finishing-pass strategy; roughness must be assigned to named functional faces. A low Ra value increases cycle time and does not by itself prove recast, edge,…
Technical Reference
EDM Tolerance Guide
Assign the tightest EDM tolerance only to dimensions that control fit and function. Select the process first, then plan finishing passes, thermal stability, datum control, and measurement capability. A global tight tolerance…
Technical Reference
Sinker EDM Surface Finish Guide
Sinker EDM finish is controlled by rough and finish electrodes, discharge energy, orbit strategy, wear compensation, and cavity flushing. A low Ra target can require additional electrodes and time, while electrode wear…
Technical Reference
Sinker EDM Tolerance Guide
For Sinker EDM, assign tolerance to the cavity walls, ribs, floors, and depths that control function. Plan electrode wear, orbit strategy, discharge gap, flushing, datum control, and inspection together. Deep narrow cavities,…
Technical Reference
Small Hole EDM Tolerance Guide
For Small Hole EDM, assign tolerance to the hole diameter, position, straightness, angle, and breakthrough condition that control function. Plan electrode wear, flushing, true path depth, datum control, and measurement together. A…
Technical Reference
Wire EDM Skim Cut Guide
Use skim cuts to improve size, texture, and edge quality after rough cutting. One skim pass does not guarantee Ra 0.4 μm or complete white-layer removal on every material and section height.…
Technical Reference
Wire EDM Surface Finish Guide
Wire EDM finish improves as discharge energy is reduced through one or more trim passes after the rough profile is established. Each trim pass adds cycle time and changes the final profile;…
Technical Reference
Wire EDM Tolerance Guide
For Wire EDM, assign the tightest tolerance only to through-profile dimensions that control fit. Plan wire path, kerf compensation, guide alignment, trim passes, datum control, and measurement together. Extra trim passes add…