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Plunge EDM

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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. Read More…

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.
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Leading Manufacturers

Waukesha, WI  |  800-798-9228

XACT Wire EDM Corp. is one of the largest and most experienced Wire EDM Companies in the country. Our Wire EDM manufacturing capabilities include a large number of high-end machines with two locations offering advanced CMM and video inspection. We work with a wide variety of customers in the medical, defense, aerospace, automation, robotics industries as well as many companies in the metal machining, tooling & stamping industries. We are ISO 9001:2015 certified. Contact us today to learn more!

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Xact Wire EDM Corporation $$$

Benseville, IL  |  630-616-8700

When you need a precision machine shop capable of machining complex/precision components you can count on 3D Industries. Our manufacturing team has the experience, equipment, software, facility and skills required to produce components with 1 to 100-micron accuracy.

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3D Industries, Inc. $$$

Brea, CA  |  714-831-0176

Since our inception, Able Wire EDM Inc, an EDM manufacturer, has been specializing in aerospace, medical and automotive industries. As an industry leader, Able Wire EDM, Inc offers a number of varying services and produces parts economically and quickly with accuracy, exceeding its customers’ expectations with innovative manufacturing techniques, on-time deliveries and competitive pricing.

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Able Wire EDM, Inc. $$$

Houston, TX  |  800-947-3336

Reliable EDM began in 1986, and was built following the biblical principle of Golden Rule Thinking: do to others as you want them to do to you. By providing quality, service, and value to its customers, they have become the largest EDM job shop in North America with over 85 EDM machines. Our around the clock operations provide you with fast service.

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Reliable EDM, Inc. $$$

Buena Park, CA  |  800-494-7328

Founded in 1978, Wire Cut Company is an AS9100 ISO certified EDM manufacturer specializing in aerospace, medical and automotive industries. As an industry leader, Wire Cut offers a number of varying services and produces parts economically and quickly with accuracy, exceeding its customers’ expectations with innovative manufacturing techniques, on-time deliveries and competitive pricing.

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Wire Cut Company, Inc. $$$

Troy, MI  |  248-583-9166

Trutron Corporation was formed in 1967 as an Electrical Discharge Machining company. Continually working to better serve customers, our capacity has expanded to meet a broad spectrum of machining requirements. Today, Trutron is an innovator in full service precision manufacturing serving a variety of industries including Aerospace, Automotive, Defense, and Oil & Gas.

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Trutron Corporation $$$

Wellington, OH  |  440-647-0600

Since its founding in 1989, Star One has grown from a small machine shop with a single-wire EDM into a thriving full-service machining facility. With the recent addition of several state-of-the-art machines including the newest high-speed wire EDM, vertical machining center, straight-cut saw, and surface grinder available, Star One is fully equipped to complete your next project quickly and efficiently.

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Star-One EDM $$$
placeholder image Xact Wire EDM Corporation 3D Industries, Inc. Able Wire EDM, Inc. Reliable EDM, Inc. Wire Cut Company, Inc. Trutron Corporation Star-One 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.

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.