Sinker EDM Serivce
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High Precision Cutting
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24/7 operation
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Tolerances as precise as ±0.004mm
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Response within 8 hours
What Is Sinker EDM?
Sinker EDM is a specialized electrical discharge machining process. It uses a shaped electrode, often made of copper or graphite, submerged in an insulating fluid along with the workpiece. Electrical discharges occur between the electrode and the workpiece, eroding the material to create the desired shape. This method is ideal for making intricate cavities or complex shapes in conductive materials that are hard to machine traditionally.
In the manufacturing process, An electrical spark is created between an electrode and a workpiece, the temperature of the electric spark can reach 8000-12000 degrees Celsius, machines can carefully control the spark to affect the surface of the workpiece, the material is removed from the workpiece by series of repeated discharging to achieve the desired shape and dimension needs.
Sinker EDM is widely used in machining various materials with a very high melting point, excellent strength, and high toughness, such as tool steel, stainless steel, tungsten carbide and so more.
We have 5 state-of-the-art Makino and Sodick precision EDM machines, meticulously designed to tackle your challenges in processing hard alloys and complex components. These high-end machines ensure ultra-high precision and exceptional processing efficiency, guaranteeing the perfect fulfillment of your precision parts manufacturing needs.Unleash Precision with Sundi’s EDM Services: Where Advanced Machinery Meets Expertise. Elevate Your Projects with Our Exceptional Quality, Swift Turnaround, and Competitive Rates, Ensuring Your Market Dominance.
Why Choose Us for Sinker EDM
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Advanced Technology
We employ state-of-the-art sinker EDM machines that ensure high precision and intricate details.
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Expertise and Experience
Our team is capable of handling complex and delicate projects with utmost precision.
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Customization Capabilities
We specialize in creating custom electrodes to meet unique project requirements.
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Quality and Precision
we are committed to delivering projects within efficient timeframes without compromising on quality or precision.
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Quality Assurance and Precision
We adhere to strict quality control protocols and use precision measuring tools to ensure the accuracy and quality.
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Sinker EDM Electrode Materials
Electrodes play a crucial role in EDM, directly impacting machining quality and precision. Therefore, selecting the appropriate electrode material is essential for achieving desired results.
Material |
Description | | Copper | Copper is a common choice due to its excellent electrical conductivity. It allows for efficient electrical discharge machining (EDM) and is suitable for various workpiece materials. |
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| Copper Tungsten Alloy | Copper tungsten combines the conductivity of copper with the high melting point and wear resistance of tungsten. This alloy is suitable for EDM tasks involving high-temperature materials and challenging machining tasks. |
| Graphite | Graphite electrodes are known for their high conductivity and wear resistance. They are often used for EDM applications involving hard materials and complex shapes. |
| Aluminum | Aluminum electrodes are used for specific applications, especially when EDMing aluminum workpieces. They are lightweight and suitable for certain special requirements. |
| Silver | Silver electrodes offer exceptional electrical conductivity and are employed for the precision machining of conductive materials. |
| Molybdenum | Molybdenum electrodes are used in high-temperature EDM applications due to their high melting point and wear resistance. |
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Sinker EDM Performance Specifications
The specific values can vary based on the Sinker EDM equipment used, the material being machined, and the specific setup and process parameters chosen. This table provides a general overview of what precision Sinker EDM can achieve.
Feature |
Description | Accuracy | ±0.005 mm to±0.015 mm(Typical) |
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Surface Roughness(Ra) | 0.1 to 1.6 μm(Depends on process parameters) |
Surface Finish | Can achieve mirror-like finishes |
Complexity Handling | Suitable for complex geometries and intricate shapes |
Material Compatibility | Effective for hard materials like titanium, hardened steel |
Depth of Cut | Up to 300 mm (Varies based on machine capability) |
Tolerance Range | Typically ±0.010 mm, finer tolerances achievable |
Minimum Feature Size | As small as 0.1 mm(Depending on electrode size) |
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Sundi Tools Sales Team
Sundi Tools has decades years of experience in designing and precision fabrication with initial on-site consultation, Contact our sales team,you will get a quick reply.
How Can We Operate and Control The Quality?
Operating and controlling the quality during Sinker EDM (Electrical Discharge Machining) involves a systematic approach to ensure precision and accuracy in the machining process.
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Machine Calibration and Setup
Before starting any EDM operation, the machine needs to be properly calibrated. This includes aligning the electrode and workpiece, setting the correct parameters, and ensuring the dielectric fluid is at the right level.
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Electrode Selection
Choose the appropriate electrode material (usually copper or graphite) and shape for the specific job. The electrode should match the desired geometry of the final workpiece.
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Dielectric Fluid Management
Maintain the dielectric fluid in the machine. It acts as an insulator and coolant during the EDM process. Regularly check and filter the dielectric fluid to ensure it remains in good condition.
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Electrode Wear Monitoring
During EDM, the electrode gradually wears down. Use monitoring systems to track electrode wear and replace it when necessary to maintain accuracy.
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Toolpath Programming
Develop a precise toolpath program that guides the electrode to erode the workpiece according to the desired design. Ensure the program accounts for electrode wear and compensates accordingly.
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Quality Control Checks:
Perform in-process quality control checks at specific intervals. This may include measuring workpiece dimensions, surface finish, and inspecting for defects.
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Feedback Systems
Utilize feedback systems that monitor the EDM process in real-time. These systems can adjust parameters on the fly to maintain accuracy and quality.
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Finishing Operations:
After EDM, additional finishing operations like polishing or grinding may be required to achieve the desired surface finish and tolerances.
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Operator Training
Ensure that operators are well-trained in Sinker EDM operations and quality control procedures. Skilled operators can make critical decisions during the machining process.
FAQ
Sinker EDM excels with conductive materials such as titanium, hardened steel, and exotic alloys, offering precision machining options where traditional methods fall short.
Sinker EDM provides high precision and intricate detail capabilities without exerting mechanical force on the workpiece, making it perfect for fragile or delicate parts
While both use electrical discharges to cut materials, Sinker EDM molds shapes by eroding material with a pre-formed electrode, whereas Wire EDM cuts contours through a continuously moving wire.
Industries requiring intricate designs and tight tolerances such as aerospace, automotive, tool and die making, and medical devices extensively utilize Sinker EDM for its precision and versatility.