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EDM Machining Knoxville, TN

EDM Machining in Knoxville, TN, delivers clean, accurate cuts for complex parts. At Roberson Machine Company, we’re built for it—prototypes to production.

Let’s talk about your Knoxville, TN, EDM Machining project—call 573-646-3996 or contact us today.

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Read more about our services and capabilities on our blog.

What Is EDM Machining?

Instead of cutting with tools, Knoxville, TN, EDM machining uses rapid electrical sparks between an electrode and the material—submerged in dielectric fluid.

Think of it like carving metal with lightning. EDM is ideal for hard or exotic metals, tight internal features, and complex shapes that conventional machining can’t easily reach. It also produces clean, burr-free finishes that often require no secondary processing.

For Knoxville, TN, manufacturers that need complex, high-accuracy components, Roberson Machine Company delivers dependable EDM machining solutions.

Key Advantages of EDM Machining

EDM stands out for its ability to handle complex, high-precision work with ease.

  • No Mechanical Stress: Because EDM doesn’t rely on physical contact, it’s ideal for delicate shapes and sensitive internal structures.
  • Range of Materials: Hardened steel, titanium, carbide—EDM cuts materials traditional tools can’t touch.
  • Zero Tooling Costs: No special fixtures needed, which makes EDM great for fast-turn projects and low-volume jobs.
  • Finish-Ready: Sharp detail and smooth edges mean EDM parts are production-ready right off the machine.

EDM’s efficiency helps shrink both material waste and time spent on secondary processes.

Knoxville, TN, EDM Machining and Manufacturing - CNC Machining

Industries That Use EDM Machining

EDM machining fills the gap where traditional tooling fails—especially in industries that need complex, ultra-precise parts made from hardened alloys.

From aerospace to energy, Knoxville, TN, EDM machining plays a role across industries like:

  • Aerospace: Intricate cuts and complex profiles for aerospace assemblies built to fly.
  • Military & Defense: From fire control components to custom enclosures, EDM supports defense-grade reliability.
  • Automotive: Custom tooling and complex geometries for powertrain systems, mold inserts, and electrical components.
  • Medical: Biocompatible materials, ultra-clean cuts—EDM supports life-critical medical manufacturing.
  • Packaging: Clean cuts and durable tooling for precise forming, sealing, and stamping processes.
  • Food & Beverage: EDM helps manufacture hygienic-grade parts that hold up to caustics, steam, and pressure washing.
  • Oil & Energy: For parts exposed to saltwater, heat, and abrasive flow—EDM delivers dimensional integrity and strength.
  • Automation & Robotics: EDM delivers parts that keep automation precise, consistent, and fast.
  • Firearm Manufacturing: Tight fits and repeatable performance for triggers, slides, and internal assemblies.
  • Consumer & Commercial Products: Ideal for prototypes and short runs—EDM supports fast iteration and tight detail.
  • OEM & Custom Applications: From R&D prototypes to long-run production in exotic or hard-to-machine materials—if it’s conductive, we can cut it.

Whether you need complex parts or consistent production, our EDM capabilities are engineered for precision and durability. Meet our team and see how we’ve supported U.S. manufacturers for over 20 years.

EDM Machining: Materials We Work With

If you’re in Knoxville, TN, and working with challenging conductive materials, EDM machining provides clean, accurate cuts with zero mechanical or thermal stress.

  • Aluminum (6061, 7075, 7050): Lightweight and corrosion-resistant; aluminum alloys are commonly machined for housings, brackets, and high-performance parts. Learn more about aluminum CNC machining and its capabilities.
  • Stainless Steel (303, 304, 316, 321, 420, 416, 440): Known for mechanical strength and corrosion resistance; stainless steels are used in medical, aerospace, and food-grade components.
  • Brass and Copper: Highly machinable and conductive; brass and copper alloys are ideal for electrical contacts, connectors, and fluid-handling parts.
  • Titanium: Lightweight, strong, and corrosion-resistant—EDM machining is often used to machine titanium for aerospace fasteners, surgical tools, and high-performance components.
  • Tool Steels and Carbides: Hardened materials like D2 and tungsten carbide are notoriously difficult to cut—EDM handles them cleanly.

If your Knoxville, TN, material conducts electricity, EDM machining might work—reach out and we’ll take a look.

Why Roberson Machine Company for EDM Machining in Knoxville, TN?

Roberson Machine brings over two decades of EDM experience and trusted reviews to support your next precision project.

Whether you’re in the medical sector, aerospace, or automotive, our experience, equipment, and capabilities are built to meet—and exceed—your EDM machining requirements.

We offer more than just EDM manufacturing. As a full-service partner in precision machining, we specialize in:

  • CNC Machining: Precise turning and milling for tight tolerances and clean, finished parts.
  • Multi-Axis Capabilities: From standard 3-axis work to complex 5-axis CNC machining, we handle intricate geometries and detailed features with ease.
  • Wire EDM: Clean, burr-free cuts for tight-tolerance assemblies and hardened materials.
  • Prototyping: We specialize in fast-turn prototypes—so you can iterate, test, and move forward with confidence.
  • Production Machining: EDM and CNC production runs with tight tolerances, short lead times, and consistent output.

We offer value-added services like welding, assembly, bead blasting, and inspection to support Knoxville, TN, EDM machining jobs of any size—from prototypes to production.

Other Knoxville, TN, machining services we provide include:

Need expert help with Knoxville, TN, EDM Machining? Get in touch or call us at 573-646-3996 today—Roberson Machine Company is ready to deliver.

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