EDM Machining in San Jose, CA, plays a critical role in modern manufacturing—from fuel system components to turbine blades and heat exchangers. At Roberson Machine Company, we deliver precision EDM services for industries that demand precise cutting, complex geometries, and burr-free finishes. Whether you need a prototype or a full production run, our capabilities are built to meet the challenge.
Want to learn more about San Jose, CA, EDM Machining? Call 573-646-3996 or reach out to our team.
Table of Contents
- What Is EDM Machining?
- Key Advantages of EDM Machining
- Industries That Use EDM Machining
- EDM Machining: Materials We Work With
- Why Roberson Machine Company for EDM Machining?
Learn more about our services and capabilities on our blog.
What Is EDM Machining?
San Jose, CA, EDM machining is a non-contact process that uses controlled electrical sparks to cut conductive materials. Thousands of rapid discharges occur between an electrode and the workpiece—submerged in dielectric fluid—to remove material without any physical cutting tools or direct contact.
Picture lightning sculpting metal. That’s EDM: a spark-based process perfect for tight corners, hard alloys, and zero-touch results with minimal cleanup.
For San Jose, CA, manufacturers that need complex, high-accuracy components, Roberson Machine Company delivers dependable EDM machining solutions.
Key Advantages of EDM Machining
When precision and complexity collide, EDM is the go-to solution.
- No Mechanical Stress: EDM removes material without force. This makes it ideal for fragile geometries, thin walls, or delicate internal components.
- Range of Materials: Hardened steel, titanium, carbide—EDM cuts materials traditional tools can’t touch.
- Zero Tooling Costs: With no form tools required, EDM streamlines production of custom or changing part designs.
- Finish-Ready: EDM creates surfaces so clean they often skip additional processing entirely.
Together, these advantages help reduce secondary operations and material waste while improving speed and efficiency.

Industries That Use EDM Machining
This process shows up wherever detail, precision, and durability matter—EDM machining powers industries that need to do more than just remove metal.
From aerospace to energy, San Jose, CA, EDM machining plays a role across industries like:
- Aerospace: Engineered for flight—EDM creates mission-critical parts with unmatched precision.
- Military & Defense: EDM produces tight-tolerance parts for advanced weapon systems, surveillance gear, and armored vehicles.
- Automotive: Complex geometries and exact fits for powertrains, electronics, and under-the-hood assemblies.
- Medical: Burr-free micro components machined in titanium and other biocompatible materials for surgical tools, implants, and diagnostic equipment.
- Packaging: EDM supports quick-change tooling and smooth finishes for continuous packaging operations.
- Food & Beverage: Sanitary-grade EDM components in corrosion-resistant stainless and specialty alloys for washdown environments.
- Oil & Energy: Deep-hole EDM drilling and precision shaping for components used in harsh or corrosive environments.
- Automation & Robotics: Tight-tolerance components for robotic arms, linear guides, and control systems.
- Firearm Manufacturing: Reliable machining for toleranced parts used in handguns, rifles, and specialty platforms.
- Consumer & Commercial Products: Custom machined parts for consumer goods, enclosures, and commercial prototypes.
- OEM & Custom Applications: EDM machining for hard metals, exotic alloys, and unconventional part geometries.
From one-off builds to full-scale production, our EDM work delivers long-term precision. Get to know our team and the industries we’ve supported over the past 20+ years.
EDM Machining: Materials We Work With
For San Jose, CA, businesses working with exotic metals or hardened alloys, EDM machining offers the precision and finish traditional tools can’t deliver—without the thermal damage.
- 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): Resistant to wear, corrosion, and contamination—these stainless steels meet strict industry standards.
- Brass and Copper: Excellent conductivity and workability make these metals ideal for precision fluid and electrical 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: EDM excels where conventional tooling fails, cutting tough steels like A2 and H13 with precision.
Unsure if EDM machining is the right solution for your San Jose, CA, application? Reach out to our team and we’ll help evaluate the specs.
Why Roberson Machine Company for EDM Machining in San Jose, CA?
From prototypes to production, Roberson Machine brings 20 years of proven expertise and client satisfaction to every EDM job.
We specialize in solving high-spec challenges for automotive, medical, and aerospace projects—with EDM equipment that’s ready for anything.
EDM is just one part of what we do. As your full-service precision machining partner, we also offer:
- CNC Machining: High-accuracy milling and turning, delivering parts with exact specifications and smooth finishes.
- Multi-Axis Capabilities: Need complex, multi-surface machining? Our 5-axis setup makes it simple.
- Wire EDM: Perfect for intricate internal cuts, tight radii, and materials too hard for conventional tools.
- Prototyping: Need a fast one-off? We deliver quick-turn parts to test your design before scaling up.
- Production Machining: High-accuracy production machining tailored to your part volumes and schedule.
From final inspection to welding and assembly, our value-added services keep San Jose, CA, EDM machining projects running smoothly at every stage.
Other San Jose, CA, machining services we provide include:
- CNC Lathe Machining
- Custom CNC Machining for Part Production
- CNC Machine Automation
- Oil and Gas Precision Machining
- Aerospace Manufacturing
- Automotive Part Manufacturing
- High Volume CNC Machining
- Industrial Automation
- Solar Panel Manufacturers
Need expert help with San Jose, CA, EDM Machining? Get in touch or call us at 573-646-3996 today—Roberson Machine Company is ready to deliver.

