Equipment and Production Capabilities

The Mitsubishi Electric die-sinking EDM machines are mainly used for processing hardened steel, tool steel, carbide, copper alloys, and other electrically conductive materials. Since the electrode and workpiece do not make direct mechanical contact, the process produces very little conventional cutting force.

This characteristic makes the equipment suitable for thin features, deep cavities, delicate mold structures, and components that have already undergone heat treatment.

Typical applications in our factory include:

• Precision mold cavities
• Mold cores and inserts
• Deep ribs and narrow slots
• Sharp internal corners
• Connector mold components
• Hardened tooling parts
• Detailed recesses and internal profiles
• Components with complex surface geometry

Copper or graphite electrodes are manufactured according to the required cavity geometry. Depending on the component, separate electrodes may be prepared for rough machining, semi-finishing, local detail machining, and final surface finishing.

Mitsubishi Electric die-sinking EDM systems combine the machine structure, discharge power supply, CNC control, adaptive machining functions, and available automation solutions to support high-speed and high-accuracy EDM operations.

Multi-Electrode Machining

The equipment shown in the workshop includes an automatic electrode-changing arrangement. Multiple electrodes can be prepared in advance and selected according to the machining program.

This capability is useful when one component requires several different electrode shapes or multiple discharge stages. It can support:

• Rough and finish electrode changes
• Multiple cavity positions
• Repeated mold insert machining
• Different electrode offsets
• Extended unattended operation
• Reduced manual setup between stages

The machine can complete several EDM operations in sequence while maintaining the programmed relationship between the workpiece, electrode position, machining depth, and discharge conditions.

Role in Our EDM Process

The Mitsubishi Electric EDM equipment forms part of our integrated mold and precision-component manufacturing workflow. Electrode design, electrode machining, fixture preparation, EDM programming, discharge machining, and dimensional inspection are coordinated by our internal engineering and production teams.

A typical production sequence may include:

1. CNC rough machining
2. Heat treatment when required
3. Copper or graphite electrode machining
4. Electrode and workpiece inspection
5. Mitsubishi die-sinking EDM
6. Dimensional and profile verification
7. Polishing or final finishing

Keeping these processes within the same factory allows our team to adjust electrode offsets, discharge parameters, cavity depths, and finishing allowances based on actual machining and inspection results.

Multiple EDM machines are installed within the same production area, enabling work to be allocated according to component size, electrode quantity, cavity complexity, material condition, surface requirement, and production schedule.

Machining Detail Image Identification

The second image can be used as a corresponding die-sinking EDM machining detail image. It shows an electrode holder positioned above several conductive workpieces, together with adjustable dielectric-fluid flushing nozzles.

The visible setup is consistent with multi-position die-sinking EDM processing. However, because the equipment housing and brand name are not visible in the close-up image, it should be presented as a general EDM processing detail rather than identified independently as a specific Mitsubishi Electric model.

Recommended image titles:

Main image:
Mitsubishi Electric CNC Die-Sinking EDM Workshop

Detail image:
Mitsubishi Die-Sinking EDM Processing Detail

The equipment shown represents part of our factory’s precision EDM capability. Actual machining results depend on the electrode design, workpiece material, cavity geometry, discharge settings, fixture stability, surface-finish requirements, and inspection standards for each project.