EDM Hole Drilling
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EDM Hole Drilling Services
A unique service that Custom EDM offers is EDM Hole Drilling for blind and through holes. Our purpose-built CNC-operated EDM hole-popping machines can produce holes as small as 300 microns (0.0120”) in some of the toughest conductive materials available like carbide and nickel. EDM generator technologies and electrode materials allow for high precision hole sizes, excellent hole edge quality, superior surface finish, improved overall part accuracy, and excellent hole consistency.
What Is Edm Hole Drilling?
Electrical discharge machining works similarly to sinker EDM by eroding or burning away conductive materials through a pipe-shaped electrode. When compared to drilling holes with a traditional cutting tool, the pipe electrode doesn't touch the material being machined, so deflection is minimized. As the tube electrode is energized and spun at high speeds during EDM Holepop, high-pressure flushing is pumped through it to flush out the material being cut away from the workpiece. With this process, Custom EDM can produce fast and accurate holes in all types of conductive metals. In addition to offering the highest level of accuracy, incredible reliability, and unique automation, our EDM drilling machines also feature unique automation that boosts productivity. In addition to small-scale production applications requiring a few holes, EDM Hole Drilling is a great choice for applications requiring thousands of holes in high-volume production.
Edm Hole Drilling Capabilities
There is no easy way to drill accurate and repeatable holes in extremely hard materials. With decades of Sinker EDM experience, Custom EDM can efficiently machine holes in some of the toughest conductive materials. For 25 years we have been offering standard tolerances (0.0010″ to 0.0005″), as well as high precision tolerances as tight as 0.0001″ (2 microns) for an array of industries and applications. Our 3-Axis and 5-Axis CNC hole drilling electrical discharge machinery have the capacity to run multiple pipe electrode sizes, ranging from 0.3mm (0.0120″) to 4mm (0.1575″) in diameter.
Common EDM Hole Drilling Applications
In cases where blind holes and/or through holes are required with extremely high accuracy and depth, EDM Hole Drilling should be considered. The EDM Hole Drilling process is well suited to parts that have intricate tolerances, limited material stress, and high surface roughness. In cases where hard or brittle materials are required by design, sinker EDM Hole drilling is often the only machining method that can produce quality holes. When it comes to EDM Hole Drilling, conventional machining methods such as CNC drilling can wear out drills much faster than EDM Hole Drilling pipe electrodes. Machine automation allows us to scale up the quantities of parts being produced to meet the high volumes required by some of our largest customers.
We have manufactured a wide variety of components using our advanced EDM Hole machining processes. Since Custom EDM has served these industries for over 25 years, there are not many types of parts that we haven't made in some form. No project is too large, no part is too complex, and no tolerance is too tight for Custom EDM, making us the preferred partner for OEM manufacturers nationwide. If you are interested in learning more about how Custom EDM can help you, please contact our manufacturing team.
Throughout the world, we work with suppliers to ensure ongoing access to and timely delivery of hole-popping electrodes made of standard and exotic materials to meet our exacting requirements. As a result, our EDM hole poppers are never waiting for pipe electrodes to arrive while the drilling process is active 24/7. Because of the integrated automation, both pipe electrodes and workpieces can be changed without human intervention, resulting in extreme machining efficiencies. As a result, our customers save time and money and experience an increase in productivity. We offer repeatable quality parts and components made from any type of conductive material based on decades of EDM machining experience.
In order to meet the ever-changing needs of our diverse customer base, we are constantly updating our CNC EDM hole drilling capabilities with our technology partners. Our EDM precision hole drilling capabilities are complemented by other manufacturing services, such as precision grinding, micro milling, and 3D measurement of machined components.
EDM Hole Drilling Specifics:
Advanced 3-Axis and 5-Axis CNC Hole Drilling EDMs built for efficient 24/7 operation
Multiple pipe electrode materials are used like brass, copper, and tungsten
Workpieces up to 4″ thick are easily machined using EDM Hole Drilling
Standard machining tolerances of 0.0010″ to 0.0005″ and high precision tolerances as tight as 0.0001″ (2µm micron)
Micromachining Fine Hole EDM Drilling tolerances of 1µm and below
Feature Aspect Ratios up to 38:1
Finished EDM drilled hole diameters from 0.3mm (0.0120″) to 4mm (0.1575″)
Fine (micro) EDM drilled hole diameters as small as 40µm
Surface Finishes down to 4Ra µin (micro inch) eliminate finishing and require no additional polishing
Small quantities of 1-50+ pieces
Contract Manufacturing of full production quantities of thousands of pieces
Sample EDM Hole Drilling Applications
Interconnect Components – holes for electrical contacts
Fiber Optic Components – holes for glass fiber optics
Medical Components – holes for drug delivery systems, surgical implants, and tooling
Optical Lenses – holes lens arrays and assemblies
Research & Development – holes for particle sensors and accelerator components
Aerospace Industry – holes in jet engine turbine blades for cooling and fuel nozzle holes
Automotive Industry – holes in fuel injectors
