Can wire EDM make holes?
If your parts or components require extremely small-diameter holes popped with high precision and accuracy, you need American Wire EDM. With the capabilities to drill blind or through holes as small as 0.010″ in diameter, we offer EDM hole popping services to meet the needs of any industry or application.
How does EDM hole drilling work?
An EDM drill works by creating a spark between the workpiece and the electrode tube as it begins to drill into it. The spark from the drill generates an intense amount of heat and jumps across the gap between the two and erodes the workpiece.
What is small hole EDM drilling?
In small-hole electrical discharge machining, a small-diameter (usually hollow) spinning electrode is applied to a workpiece. Also known as EDM drilling or EDM micro hole drilling, small hole EDM has traditionally been used to produce holes in fuel injectors, turbine blades, cutting tools (coolant holes), and more.
What is a hole popper EDM?
During EDM Holepop the tube electrode is energized and spun at high speeds while high pressure flushing is pumped through the tube to flush out the workpiece material that is being cut away. This process allows EDM Intelligent Solutions to produce fast and accurate holes in all types of conductive metals.
What is hole popping?
EDM Hole Popping Capabilities
uses EDM hole popping technology to drill small holes in a variety of types of parts. EDM hole popping is perfect for fast, accurate, and deep hole drilling applications. Small holes once impossible to drill by conventional machine tools are now performed with EDM.
What is Sinker EDM?
Sinker EDM machines use an electrode and workpiece submerged in liquids such as oil or dielectric water. A power supply is connected to the electrode and generates electrical potential between both of the parts, producing a breakdown to form a plasma channel and spark jumps.
How does a wire EDM work?
During the EDM process, a metal part is placed into dielectric fluid, and a wire is fed through the submerged metal component. An electric current is sent through the part to create the sparks that will ultimately help form the desired shape of the component.
What is the difference between a wire EDM and a sinker EDM?
Unlike Wire EDM, Sinker EDM services do not cut completely through the material (unless desired), resulting in a wider variety of applications, such as blind cavities/keyways, thin walls, or cross-sections. This versatility makes sinker EDM an efficient technology for components of stamping dies and injection molds.
Why Copper is used in EDM?
Copper electrode greatly improves the performance characteristics as compared to brass electrode for same set of control parameters in EDM process [24]. They also revealed that Dielectric pressure and pulse current are the most significant factors affecting the EDM process in case of brass electrode.
What are the disadvantages of wire EDM?
Disadvantages of Electrical Discharge Machining
- The slow rate of material removal.
- The additional time and cost used for creating electrodes for Ram/Sink EDM.
- Reproducing sharp corners on the work piece is difficult due to electrode wear.
Why dielectric fluid is used in EDM?
Dielectric is an important parameter in EDM and plays a crucial role in determining high material removal rate (MRR) and surface finish during operation. The dielectric fluid behave as a medium which controls the electrical discharge and absorb heat during process.
What is the difference between ECM and EDM?
Both EDM and ECM are non-conventional machining methods; however, both processes have considerable differences. EDM, or electrical discharge machining, relies on localized spark erosion to remove material, whereas ECM, or electrochemical machining, utilizes electrolysis to dissolve the metal locally.
Why brass is used in EDM?
Brass is an alloy of copper and zinc. Brass materials are used to form EDM wire and small tubular electrodes. Brass does not resist wear as well as copper or tungsten, but is much easier to machine and can be die-cast or extruded for specialized applications.
Can you EDM copper tungsten?
That’s why copper’s high electrical conductivity and arc erosion resistance in combination with the excellent thermal conductivity and wear resistance of tungsten make for optimal performance as an EDM electrode material.
How thick can you cut with wire EDM?
Our wire EDM machines can work with metal thicknesses anywhere from . 001 to 16 1/8”.
How fast does wire EDM cut?
When using standard 0.010″ O brass wire you can expect a consistent, reliable wire EDM cutting speed of approximately eighteen to twenty inch}/hour. Unfortunately, the EDM process creates minute chips and debris that can adversely affect the reliability of this transport system.
Why kerosene is used in EDM?
In EDM, tool is completely submerged into the Kerosene and that too there is no oxygen available hence the spark cannot sustain. Moreover kerosene is a bad conductor of heat so thats why it is used as a coolent in EDM process.
Why deionized water is used in wire EDM?
Deionized water has been used as dielectric fluid for micro-electrical discharge machining (micro-EDM) because it gives higher material removal rate and lower tool wear than hydrocarbon oil. Moreover, it is a relatively low-cost and eco-friendly substance.
What is the basic principle of EDM?
5.2 Principles of the EDM process. EDM is a thermoelectric process used to remove metal via a series of discrete sparks between the metal and workpiece. In EDM an electric spark is used as the cutting tool to cut (erode) the workpiece and produce the finished part to the required shape.
How does wire EDM work?
Can you EDM copper?
To obtain optimum results with copper beryllium, the EDM parameters will require processing adjustments compared to steel. EDM of copper beryllium can usually be done at 80 – 100% of the penetration rate for steel while maintaining a smooth surface and acceptable electrode life.
How thick is the wire in wire EDM?
Wire size.
Standard EDM wire is 0.25mm in diameter. Microwires can range from 0.15mm down to 0.020mm. The wire diam- eter chosen depends on part features, such as corner radii, slot widths, thin-wall details and intricacy of geometries.
Why copper is used in EDM?
Can you EDM tungsten carbide?
Tungsten carbide, third in hardness to diamond and boron carbide, is an extremely difficult material to machine. Except for diamond cutting tools and diamond impregnated grinding wheels, EDM presents the only practical method to machine this hardened material.
What material Cannot be cut using EDM wire cut?
Due to the nature of wire EDM cutting — removing material by using rapidly repeating, controlled electrical charges along a strand of metal wire — the method is limited to electrically conductive materials. Therefore, any material that is a composite or coated with a dielectric is not feasible for EDM.