In modern manufacturing, Chattanooga, TN, Wire EDM is a leading process for accuracy and complexity. That’s why wire EDM is central to Precision CNC Machining and advanced manufacturing.
Roberson Machine Company applies advanced wire EDM (Electrical Discharge Machining) systems to achieve burr-free, consistent outcomes across projects from detailed prototypes to mission-critical production parts. To discuss how Chattanooga, TN, Wire EDM can drive success for your next project, call our team at 573-646-3996 or contact us online.
Article Synopsis
- A short explanation of how wire EDM works, how it cuts without contact, and where it outshines conventional machining.
- Outline of specifications and capabilities—tolerances, tapers, materials, envelopes—so you can evaluate if wire EDM meets your requirements.
- Simple examples of real-world applications and industries (aerospace, medical, packaging, energy) with notes on who oversees the work.
- Explaining what Roberson Machine Company brings to the table, with proven workflows, advanced equipment, and dependable turnaround times.
From aerospace prototypes to medical-grade components, wire EDM opens up design and manufacturing possibilities other processes can’t match. Below, we outline how the process functions, where it’s applied, and what working with Roberson Machine Company looks like.
Table of Contents
- What Is Wire EDM Machining?
- Real-World Applications for Wire EDM and Precision Cutting
- FANUC ROBOCUT α-C400iC: New Wire EDM Technology
- Wire EDM Capabilities & Specs
- Who Uses EDM Wire Cutting
- Materials We Work With for Wire EDM
- Why Roberson Machine Company
Discover our machining capabilities, success stories, and additional Chattanooga, TN, Wire EDM resources available on the blog and FAQs.
What Is Wire EDM Machining? | [city, TN, Precision CNC Services
Wire EDM is a specialized process within our broader CNC machining capabilities. In place of mechanical cutting tools, wire EDM uses a fine electrically charged wire to machine conductive materials. The process forms controlled sparks along the wire path, eroding material into highly accurate cuts without stressing the part.
That’s why it’s the go-to method for features conventional machining can’t achieve: intricate profiles, narrow slots, sharp internal corners, and components built from hardened steels, titanium, carbide, or other tough alloys. Every part exits the process with accuracy, clean edges, and readiness for your next build stage.
Real-World Applications for Chattanooga, TN, Wire EDM and Precision Cutting
Wire EDM is ideal when conventional cutting can’t achieve the needed accuracy, finish, or tolerance, including on hard-to-machine metals, thin walls, or delicate parts. Wire EDM cuts conductive metals cleanly and burr-free, including titanium, carbide, Inconel, hardened steels, and more.
Wire EDM in Chattanooga, TN, supports prototypes, tooling fixtures, and full-scale production jobs. Common uses include:
- Aerospace: Accurate turbine slots, seals, and tooling inserts designed to remain true following heat treatment.
- Military & Defense: Hardened alloy components and mission-critical assemblies that need distortion-free cuts and crisp internal corners.
- Automotive: Powertrain tooling, prototype parts, and mold inserts produced with precision internal clearances.
- Medical: Surgical tools, implant parts, and micro features machined burr-free in biocompatible alloys.
- Packaging: Forming dies and wear components machined with sharp profiles and smooth surfaces for less post-processing.
- Food & Beverage: Durable stainless components for food-grade washdown, cut cleanly and stress-free.
- Oil & Energy: High-pressure pump parts, sealing surfaces, and alloy components engineered for harsh service.
- Automation & Robotics: Automation parts such as fixtures, housings, and moving elements cut with tight tolerances.
- Firearm Manufacturing: Slides, tooling, and inner firearm parts manufactured with clean edges and repeatable tolerances.
- Consumer & Commercial Products: Fixtures, branding dies, and precision parts produced for consumer and commercial needs.
- OEM & Custom Applications: Single R&D parts to large production jobs in conductive alloys, even exotic or hardened.
Got a project or issue? Contact us online or call 573-646-3996 to talk about your Chattanooga, TN, wire EDM machining requirements.

FANUC ROBOCUT α-C400iC: New Wire EDM Technology
Our equipment lineup now includes the FANUC ROBOCUT α-C400iC, delivering higher cutting speeds, accuracy, and thin-wire machining. With quick auto-threading, steady long-duration operation, and excellent surface finish, it excels at producing intricate features and precise internal gaps.
| Specification | Value | Notes |
|---|---|---|
| Max Workpiece Size | 730 × 630 × 250 mm (28.74″ × 24.80″ × 9.84″) | Compact footprint with generous load space. |
| Max Workpiece Weight | 500 kg (≈1,100 lbs) | Stable cutting on medium-to-heavy parts. |
| Table Travel (X/Y/Z) | 400 × 300 × 255 mm (15.75″ × 11.81″ × 10.04″) | Precise positioning for complex features. |
| U/V Travel | ±60 mm | Supports advanced taper and offset work. |
| Max Taper | ±30° @ 80 mm (3.15″); option: ±45° @ 40 mm (1.57″) | Handles steep tapers on thicker stock. |
| Wire Diameter | 0.10–0.30 mm (≈0.004″–0.012″); option: 0.05 mm (≈0.002″) | Thin-wire option supports ultra-fine features. |
| Controller | FANUC 31i-WB | Modern control with iHMI interface. |
| Notable Features | AWF3 auto threading, iPulse3 discharge control, AI thermal compensation, Core Stitch | Improves uptime, finish quality, and accuracy on long runs. |
What’s different? Where legacy specs fall short, the ROBOCUT delivers ≈0.002″ thin-wire cutting, advanced taper choices (±45° @ 1.57″ with option), and stable, faster unattended operation powered by AWF3 and iPulse3. With different work envelope and load specs than previous units, we align the machine with your part size and tolerance goals.
Wire EDM Capabilities & Specs
Across Chattanooga, TN, our Wire EDM services are suited for jobs from intricate features to heavy-duty workpieces, producing accurate, burr-free results on conductive materials. The section below gives a general breakdown of wire EDMs:
Core Capabilities
| Capability | Spec | Why It Matters |
|---|---|---|
| Max Cutting Height | 16.5″ | Tackle tall parts and deep cavities without multiple setups. |
| Tolerance Maintained | ±0.0003″ | Hit critical features for aerospace, medical, and precision tooling. |
| Max Taper Angle | 45° | Produce complex profiles and reliefs in mold and die work. |
| Wire Diameter Range | .002″–.010″ | Cut ultra-fine details or heavier sections as the job requires. |
| Max Workpiece Weight | 1,800 lbs | Run large industrial components with stable fixturing. |
Work Envelope
| Axis | Travel | Notes |
|---|---|---|
| X / Y / Z | 21.7″ × 14.6″ × 12.2″ | Flexible capacity for varied part sizes and setups. |
Taper Capability by Thickness
| Workpiece Thickness | Typical Max Taper | Use Case |
|---|---|---|
| 12″ | ±10° | Thick tooling plates and heavy die sections. |
| 3.25″ | 30° | Mold components with angled relief features. |
| 1.93″ | 45° | Sharp internal corners and complex taper profiles. |
Looking for more info on a part or material? Contact us or give us a call at 573-646-3996 to discuss Wire EDM in Chattanooga, TN.
Who Uses EDM Wire Cutting in Chattanooga, TN?
Wire EDM has applications far past the machine shop—it’s a precision approach for anyone tasked with delivering complex parts on the first try. Our services are a fit for:
- Project Managers & Directors: Avoid major overruns with components that arrive as specified and on time, keeping your schedule intact.
- Prototype Engineers: Test and adjust designs rapidly before scaling into full production.
- Quality Assurance Teams: Rely on consistently accurate, burr-free parts that satisfy rigorous tolerance demands.
- Compliance & Regulatory Specialists: Receive parts manufactured to precise specs and prepared for inspection.
- Maintenance & Reliability Engineers: Get exact replacement components to restore operations quickly and avoid extended outages.
For work that demands accuracy, our Chattanooga, TN, EDM wire cutting solutions deliver results on time and on budget.

Materials We Work With for Wire EDM
Wire EDM applies exclusively to electrically conductive materials, which covers metals and alloys that push past the limits of traditional cutting. It achieves smooth, burr-free results free of thermal or mechanical stress, on everything from hardened steels and thin-walled sections to exotic alloys.
- Aluminum: Corrosion-resistant and lightweight, frequently machined into housings, brackets, prototypes, and precision parts.
- Stainless Steel: Strong, corrosion-resistant, and relied on for medical equipment, aerospace hardware, and food-safe parts.
- Brass & Copper: Known for machinability and conductivity, often used for electrical contacts, connectors, and fluid-handling equipment.
- Titanium: A blend of strength, low weight, and corrosion resistance makes it essential for aerospace, surgical, and performance uses.
- Tool Steels & Carbides: Known for toughness in cutting hardened steels and carbides, relied on for dies, molds, and precision wear components.
Within our lineup of CNC machining processes, Wire EDM in Chattanooga, TN, plays a critical role in achieving accurate results. There are jobs where Wire EDM is the only option, and others where it works in tandem with milling, turning, or additional precision methods.
Why Roberson Machine Company for Chattanooga, TN, Wire EDM Cutting?
For more than 20 years, Roberson Machine Company has delivered precision manufacturing solutions for industries where accuracy isn’t optional. By leveraging a modern CNC shop and specialized wire EDM systems, we deliver technical skill, consistent lead times, and a full suite of value-added services to Chattanooga, TN, customers.
Beyond Wire EDM, our machining capabilities:
- CNC Lathe Machining
- Custom CNC Machining for Part Production
- CNC Machine Automation
- Oil and Gas Precision Machining
- Aerospace Manufacturing
- Automotive Part Manufacturing
- EDM Machining
- High Volume CNC Machining
- Industrial Automation
- Solar Panel Manufacturers
The Roberson Machine Company provides advanced machining services and process expertise, making us a go-to for surgical-grade wire EDM. See our background and team, reach us online, or call 573-646-3996 to ask about Chattanooga, TN, Wire EDM services and machining capabilities.

