Cut hardened steel, carbide and exotic alloys with sparks instead of tools — no cutting force, no burrs, no distortion. Get a factory-direct quote within 24 hours.
The problem
Hardened steel wears out cutters fast. Thin walls bend under cutting force. Sharp internal corners are impossible to mill.
With YiguProto as your China manufacturer and supplier, you get one accountable partner from quote to delivery.
The basics
Wire EDM is a cutting process that uses electricity, not a blade. A thin wire burns through metal with thousands of tiny sparks.
Wire EDM stands for electrical discharge machining. A thin brass wire runs past your part, and electric sparks jump across a small gap.
Each spark melts a tiny bit of metal. The wire never touches the part, so there is no cutting force and no bending.
That is why wire EDM cuts hardened steel, carbide and thin walls that would break under a milling cutter.
Hardness does not slow it down. Tool steel, carbide and Inconel cut just as well.
With no cutting force, thin walls and delicate parts stay flat.
Internal radii down to about 0.2 mm — far smaller than a milling cutter.
Sparks leave a clean edge, so there is little or no deburring to do.
Compare
Both remove metal. They just do it in very different ways. Use this table to pick the right one.
| Feature | Wire EDM | CNC Milling |
|---|---|---|
| How it cuts | Sparks erode the metal | A rotating cutter removes chips |
| Cutting force | None | High |
| Hardened steel | Easy | Wears tools fast |
| Thin walls | No distortion | Can bend or chatter |
| Internal corners | Down to ~0.2 mm | Limited by tool radius |
| Shape range | 2D profiles plus taper | Full 3D shapes |
| Speed | Slower | Faster |
| Best for | Dies, slots, hard parts | General 3D parts |
Capabilities
Real numbers, so you can spec your part with confidence. Our company runs these machines every day for customers worldwide.
| Feature | Capability |
|---|---|
| Process | Wire EDM (wire-cut) |
| Tolerance | ±0.005 mm standard, tighter with skim passes |
| Surface finish | Ra 0.4 µm with multiple passes |
| Wire diameter | 0.1–0.3 mm brass |
| Max workpiece | 800 × 600 × 300 mm |
| Min internal radius | About 0.2 mm |
| Materials | Any conductive metal |
| Taper cutting | Up to ±30° |
| Dielectric | Deionized water |
| Lead time | 3–7 business days |
Materials
If it conducts electricity, we can cut it. Here are the materials we run most.
TS
D2 · H13 · A2
The go-to metal for dies and punches. Wire EDM cuts it after hardening.
Steel materials →SS
304 · 316L · 17-4
Corrosion-resistant parts for medical, food and marine use.
Stainless steel →CB
Tungsten carbide
Extremely hard. Wire EDM shapes it where grinding is too slow.
Metal materials →TI
Grade 2 · Grade 5
High strength-to-weight for aerospace and medical parts.
Titanium materials →NI
Inconel · Monel
Tough, heat-resistant alloys that are hard to cut any other way.
Nickel materials →AL
6061 · 7075
Light and conductive. Cuts fast with a clean, burr-free edge.
Aluminium materials →BR
C360 · C377
Easy to cut and corrosion-resistant. Used in fittings and connectors.
Brass materials →Applications
Wire EDM shines on flat parts with tight tolerances, fine slots and hard material. These are the EDM machining solutions we deliver most often.
Finishing
Add a finish to your wire EDM parts without sending them anywhere else. It is one complete set of machining solutions.
Industries
We cut precision parts for teams that cannot afford a bad edge.
Save money
Wire EDM is precise, but it is not fast. Small changes keep the price down.
Pre-machine with milling, then use EDM only for the fine detail.
A pre-drilled start hole saves the machine from burning one in.
Only tighten the features that need it. Fewer skim passes cost less.
Thicker wire cuts faster. Thin wire is only for fine detail.
Why teams trust us
You are not buying a wire EDM machine. You are buying a team that has done this thousands of times.
10+ years machining in China, with 200+ skilled workers and in-house engineers.
DFM review on every quote. We flag a part that is hard to cut before you order.
Our company in Dongguan, China runs CNC, EDM, grinding and finishing under one roof.
ISO 9001:2015 managed quality. NDAs signed on request. Files kept confidential.
How it works
Send STEP, STP, IGES or PDF drawings.
Free DFM review and a clear, itemized price.
Wire-cut in-house, then measured on a CMM.
Global shipping with tracking and full reports.
FAQ