Leading Wire EDM Machining Parts Manufacturer in China
Wire EDM is a non-contact machining method that is based on the principle of electrical discharge machining (EDM). It is mainly used for cutting hard, conductive materials. Different from traditional machining methods, it is more suited for rapid prototyping and low-volume production.
DSR’s advanced wire EDM machines, equipped with CNC systems, can realize automated, continuous production, keeping a high accuracy of 0.02 mm while saving costs. Our machines can also achieve cutting depths that can’t be reached by traditional methods, and all cutting steps are completed in a single pass, significantly avoiding the risk of unplanned downtime.
DSR has 15 years of manufacturing experience, and our highly skilled senior engineers are capable of handling various complex shapes and precise features. Therefore, no matter your manufacturing industry, DSR can produce the right parts for you.
Contact DSR for the latest quote now, and we will provide you with a competitive price and a detailed machining plan.
Different Wire EDM Machining Parts DSR can Process
It is used to cut ultra-high-temperature, wear-resistant metals such as titanium alloys and Inconel to create complex parts such as turbine blades, engine components, aircraft molds, and fuselage parts. It is also used to manufacture high-precision extrusion dies, ensuring mold life and dimensional accuracy.
It is used to process precision equipment, like implantable medical devices (such as joints and bone plates), surgical knives, and dental tools, ensuring zero deformation, high finish, and no flash, meeting biocompatibility standards.
It is used in engine or transmission systems to cut difficult-to-machine or complex-shaped components such as injectors, gears, mold cavities, and instrument panel parts.
In high-precision mold manufacturing, wire EDM is used to create critical structures such as cavities, cores, pushers, pullers, and insertion holes.
The manufacturing of electronic connectors, lead frames, micro-conductive components, and semiconductor packaging structures requires extremely high dimensional accuracy and fine features.
Used for cutting high-temperature alloys to create small holes for turbine blades and high-pressure components, achieving truly burr-free machining.
Used for creating cooling holes, slender channels, and delicate components in hard materials, it is suitable for high-precision tools.
Machining robotic end tools (such as fixtures and clamps), rapid prototyping, and small batch sizes of complex parts. Wire EDM’s flexibility and precision make it highly valuable in R&D and automation equipment.
Advantages of DSR Wire EDM Machining
Machining accuracy can reach ±0.005 mm or even higher. Suitable for applications with extremely high dimensional requirements, such as molds and precision parts.
There is no contact between the workpiece and the wire electrode; material is removed by spark discharge. This makes it particularly suitable for machining thin-walled and small parts, without deformation due to cutting forces.
Unaffected by material hardness, it can process any conductive material (such as hardened steel, cemented carbide, and titanium alloy). It can easily handle materials that are difficult to cut with other tools.
Capable of machining complex contours, sharp angles, fine grooves, and even confined spaces. It is commonly used in the manufacture of complex parts such as precision stamping dies, cavity molds, and cutting tools.
The cut surface achieves low surface roughness (Ra 0.2-0.4 μm). Through multiple trimming cuts, a near-mirror finish can be achieved.
The kerf width is typically around 0.1 mm, minimizing material waste. It is particularly suitable for the fine processing of precious metals (such as titanium and tungsten alloys).
Combined with CAD/CAM software, the system enables automated cutting directly according to program instructions. It can operate unattended for extended periods of time.
Various Materials DSR can be processed by Wire EDM Machining
Wire EDM must be used in conductive materials.
The most common applications for wire EDM include stainless steels such as D2, A2, H13, P20, and 440C. These are commonly used in cores, inserts, and special-shaped holes in injection molds, die-casting molds, and stamping dies.
Tungsten-Cobalt (YG) and Tungsten-Titanium-Cobalt (YT) are commonly used in cutting tools, wear-resistant parts, gauges, and wire drawing dies.
Deformed parts after heat treatment are difficult to machine using conventional cutting methods. Wire EDM effectively avoids this heat-treatment deformation.
Suitable for machining materials with poor thermal conductivity and severe work hardening, such as Inconel, Hastelloy, and titanium alloys. They are usually used in aircraft engine parts, medical implants, and corrosion-resistant chemical components.
Silicon nitride, silicon carbide, and carbon fiber-reinforced metal-matrix composites are also suitable. Highly wear-resistant and high-temperature resistant components for specialized applications.
These materials can also be cut using conventional cutting methods, but wire EDM can reach higher precision, a smoother surface finish, and eliminates deformation caused by cutting forces.
A wire electrode (usually brass, molybdenum, or galvanized) acts as a moving electrode, continuously moving along a set trajectory. The workpiece acts as the other electrode.
A very small gap (approximately 0.01-0.05 mm) is maintained between the workpiece and the wire electrode.
A working fluid (usually deionized water) is introduced into the crack, offering cooling, flushing away metal chips generated during machining, and also providing insulation.
When a pulse voltage is applied between the wire electrode and the workpiece, the insulating fluid in the gap breaks down, creating a short-lived discharge channel. This generates transient high temperatures, bringing in localized metal in the workpiece to melt and vaporize, which is then flushed away by the working fluid.
The wire electrode itself won’t directly cut the workpiece; instead, it removes metal layer by layer through continuous spark discharge, completing the cutting process.
Workpiece positioning: The workpiece is secured to the worktable.
Wire threading: The electrode wire is passed through the starting hole or edge of the workpiece.
Programming: The worktable and wire path are controlled according to the CAD/CAM program.
Electro-spark cutting: The wire electrode moves along the path, removing material layer by layer.
Fluid flushing: Continuously removes metal chips from the machining area and maintains a stable discharge.
Our machines, from a well-known brand, can process medium-sized workpieces up to 0.9 m × 0.7 m × 0.3 m and weighing up to 600 kg; and large workpieces up to 1.2 m × 0.8 m × 0.3 m and weighing up to 900 kg.
Differences between wire EDM and traditional EDM (sinking EDM)
Electrode Type
Wire EDM: The electrode is a continuously moving wire. The wire does not participate in forming, but simply “cuts” the workpiece along its path.
EDM (cavity discharge machining): The electrode is a pre-formed block. The workpiece is eroded layer by layer, ultimately replicating the electrode’s shape.
Processing Method
Wire EDM: Similar to a saw, the workpiece is cut along a set path. Complex contours, internal holes, and narrow slots can be cut.
Sinking EDM: The electrode is pressed into the workpiece surface, replicating the electrode’s shape through discharge etching. This is suitable for three-dimensional structures such as mold cavities, grooves, and blind holes.
Workpiece Geometry
Wire EDM: The processing result is primarily a two-dimensional contour cut, with the cut penetrating the workpiece.
Sinking EDM: The process produces three-dimensional cavities/blind holes, but not necessarily through the workpiece.
Accuracy and Surface Quality
Wire EDM: Extremely high accuracy (±0.005mm). The cut is narrow and the surface quality is excellent. Sinking EDM: Slightly lower accuracy (±0.005-0.01 mm). Surface finish can be improved by using different electrodes and multiple discharges.
Applications
Wire EDM: Convex and concave dies for precision molds. Contour cutting for cutting tools, medical devices, and precision aerospace parts.
Sinking EDM: Cavity machining for plastic molds, die-casting molds, and forging dies. Threaded holes, blind holes, and complex grooves.
