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Plunge EDM Companies

IQS Directory provides an extensive list of plunge EDM companies and suppliers. Utilize our website to review and source plunge EDM companies with our easy-to-use features which allow you to locate plunge EDM companies that will design and engineer plunge EDM's for your exact specifications. Our request for quote forms make it easy to connect with leading plunge EDM companies.View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for small plunge EDM, precision plunge EDM, or 5axis plunge EDM.

  • Fridley, MN 763-783-7808

    Twin City is ISO 9001:2000 certified for all simple & complex EDM services, in addition to many other services & their forte is producing difficult, complex parts through their state-of-the-art equipment & highly skilled staff. TC will perform the nearly impossible & are known to give both 100% in quality & service. Their flexibility & versatility provide customers with affordable convenience.

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  • Strongsville, OH 440-238-6459

    At R.M.Tool, we provide reduce turnaround times on intricate parts. We are able to perform internal spline cutting, internal key ways, internal cams, and more. With our Wire-Cut EDM equipment, we can cut short runs and keep both cost and time to a minimum. We strive to always please our customers by always delivering quality products. Give us a call today to discuss your electrical discharge machining needs.

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  • Mason, OH 513-573-7200

    Makino is a world leader in electrical discharge machinery technology, producing horizontal and vertical machining centers, wire EDM machines, and ram EDM machines. Makino is all a manufacturer needs to machine parts more accurately, productively and at a lower cost per part.

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  • LaVale, MD 800-272-1930

    The world’s leading small hole manufacturer since 1937, National Jet Company specializes in micro-hole drilling. We can drill holes as small as .0005’’ as we manufacture our own drilling machines includes broaches and punches. Featuring our very own micro EDM process, we are capable of producing EDM holes down to .002’’. We also utilize our own electrode extrusion process for EDM slots and shapes.

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  • Highland Heights, OH 800-474-4322

    Norman Noble specializes in conventional EDM, plunge EDM and small hole EDM services. Serves a range of industries such as aerospace, medical, automotive and more with quality electrical discharge machining. For medical device OEMS, high-tech applications and emerging industries, there’s no better, or more qualified source, for microprecision contract manufacturing than Norman Noble.

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  • Waukesha, WI 262-524-9100

    Wisconsin Metal Parts, Inc. specializes in precision wire EDM work. We wire EDM prototype and production parts, wire edm stamping die components and mold components. We will do just the wire edm for you or we will produce the parts complete.

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  • More Plunge EDM Companies

businessIndustry Information

Plunge EDM

Plunge EDM, which goes by many names including conventional EDM, sinker EDM and ram EDM, produces parts by eroding materials in the path of the EDM tool using electrical discharges, or sparks that can generate heat anywhere from eight to twenty thousand degrees. The piece of material to be worked on is connected to a power supply and then an electrode is used to create a conductive path and cut the material into the desired shape or pattern.

Plunge EDM, which goes by many names including conventional EDM, sinker EDM and ram EDM, produces parts by eroding materials in the path of the EDM tool using electrical discharges, or sparks that can generate heat anywhere from eight to twenty thousand degrees. The piece of material to be worked on is connected to a power supply and then an electrode is used to create a conductive path and cut the material into the desired shape or pattern. There is no actual contact between the electrode and the work piece as the erosion takes place as a response to the electrical current being produced. The process takes place in a dielectric fluid, allowing electricity to be conducted. The fluid is always used to flush away the debris from the process allowing for clean and burr free edges. Plunge EDM is ideal for applications such as injection mold tooling, micro hole drilling, keyways, washers and scientific research apparatus. Industries served include aerospace, medical, tool and die, automobile and military. It is able to achieve high tolerances on complex geometries and patterns. Unlike wire EDM which uses a pre-drilled hole to feed the wire into for the process, plunge EDM does not require a hole. Common plunge EDM electrodes include machined graphite, copper tungsten and brass.

One of the two major types of EDM, plunge EDM differs from its counterpart wire EDM nor only in terms of the type of electrode used but also because plunge EDM has 3D capacities while wire EDM can only produce 2D parts. Furthermore, plunge or ram EDM can be applied to hard materials including stainless steel, copper, graphite, and exotic metals that would cause difficulties during conventional machining. The process of electrical discharge machining typically takes place in a shallow bath of dielectric fluid, which prevents premature sparking and flushes away debris. For high precision pieces, CNC EDM is used in which CNC machines are used to guide, monitor and control the machining process, as well as CAD and CAM software to ensure the highest tolerances. One disadvantage to using this process is the extra time and costs involved with fabricating the electrodes necessary for the specific procedure. These can be costly and can wear down easily due to the intensity of the electrical process. Therefore, it is important to take this aspect of EDM Machining into consideration before committing, however, the tight tolerances and minimal product damage remain as advantageous benefits to using EDM.



Plunge EDMy
Plunge EDMy
Plunge EDMy
Plunge EDM - Avon Broach and Production Company
Plunge EDM - Avon Broach and Production Company
Plunge EDM - Avon Broach and Production Company