Service Overview
At CMS, our EDM machining service allows for the production of complex geometries and fine features that are difficult or impossible to achieve with traditional machining. Using state-of-the-art EDM machines, we provide:
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High-precision wire EDM for cutting intricate profiles
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Die-sinking EDM for cavities and molds
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Fast turnaround for prototypes and small-to-medium production runs
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Consistent dimensional accuracy and superior surface finishes
We handle a wide range of materials, including tool steels, hardened metals, stainless steel, titanium, and exotic alloys, delivering high-quality results for aerospace, automotive, medical, and industrial applications.
What Is EDM Machining?
Electrical Discharge Machining (EDM) is a non-contact, thermo-electric process where a series of electrical sparks remove material from a workpiece.
Key features include:
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Ability to machine hard metals and hardened tool steels
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High-precision cutting with tolerances as tight as ±0.01 mm
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Production of complex shapes, sharp corners, and intricate cavities
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Minimal mechanical stress on the part, avoiding deformation
EDM is widely used in tool and die making, mold manufacturing, and precision components where conventional machining cannot achieve the desired accuracy or geometry.
Latest Cases
Technical Specifications
| Parameter | Specification |
|---|---|
| EDM Type | Wire EDM, Die-Sinking EDM |
| Materials | Tool Steel, Stainless Steel, Titanium, Aluminum, Carbide, Inconel |
| Workpiece Size | Up to 600 × 400 × 300 mm (customizable) |
| Tolerance | ±0.005–0.05 mm depending on material and process |
| Surface Finish | Ra 0.2–1.6 μm |
| Wire EDM Min. Cut Width | 0.05 mm |
| Max Die-Sinking Depth | 300 mm |
| Batch Size | Single prototypes to mass production |
Advantages of CMS EDM Machining Service
Wire EDM vs Die-Sinking EDM
Wire EDM:
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Uses a thin, continuously moving wire as an electrode
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Ideal for cutting intricate profiles, sharp internal corners, and thin sections
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Suitable for 2D or 2.5D shapes
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Excellent for small, precision components and prototypes
Die-Sinking EDM:
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Uses shaped electrodes to create cavities and molds in 3D
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Best for deep pockets, complex 3D shapes, and tool/mold fabrication
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Suitable for medium-to-large batch production
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Allows high-precision replication of electrode shape in the workpiece
Choosing the Right Method:
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Use Wire EDM for intricate outlines, fine cuts, or when minimal material is removed
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Use Die-Sinking EDM for molds, cavities, and parts requiring 3D depth and volume
By combining these two EDM methods, CMS can handle any precision machining challenge, ensuring optimal quality and efficiency for your parts.
Applications Across Industries
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Automotive: Dies, molds, and precision components
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Aerospace: Engine parts, turbine components, and structural elements
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Medical Devices: Surgical tools, implants, and precision housings
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Industrial Equipment: Molds, jigs, and precision tooling
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Electronics: Connectors, heat sinks, and components requiring fine detail
Quality Assurance
CMS follows strict quality protocols for EDM machining:
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Dimensional inspection using CMM (Coordinate Measuring Machines)
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Surface finish and tolerance verification
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Process monitoring to ensure repeatability and precision
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Full documentation for each batch, ensuring traceability and compliance
Get in touch today
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“Outstanding Work”
The CMS team is excellent to work with. They are very responsive and the quality of the parts we ordered is exceptional. We’ve been doing business with them for several years now and look forward to continue working with them.
Shona Jones
Frequently Question
If you have any questions in the process of product design and manufacturing, you can contact us to obtain expert support and provide the best solution for your product. Get support now ！
