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RAM/SINKER EDM MACHINING

RAM/Sinker EDM Machining Services


RAM/Sinker EDM, sometimes called cavity type EDM or volume EDM, uses specially shaped, graphite, copper or tungsten electrodes which is submerged with the workpiece in dielectric fluids. The electrode is connected to a power source attached to a ram or head, and slowly fed into the work piece. Which then creates a spark to sink or burn a shape into the material being machined.

Our RAM/Sinker EDM machines can be used to cut a wide variety of conductive materials, including precious metals, soft & hard metals, super alloys, and conductive ceramics. By using this technique rather than more traditional methods, RAM/Sinker EDM is able to produce complex shapes using 3d modeling without introducing stress or causing the machined material to suffer from heat distortion.

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RAM/SINKER EDM X Y Z
CHARMILLES FORM 20 13.8" 9.85" 9.85"

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RAM/SINKER EDM APPLICATIONS

Unlike Wire EDM, RAM/Sinker EDM isn’t used to cut straight through the material being machined (Unless this is requested). Because of the accuracy achieved with RAM/Sinker EDM machining, the electrode can very precisely and accurately make incisions into soft & hard conductive materials. As a result, RAM/Sinker EDM has a wider portfolio of uses such as creating prototypes, blind cavities/keyways, thin walls, cross sections, molds, and dies. Making it an ideal technique for use in the medical, aerospace/defense, automotive, and electronics industries.

WHY CHOOSE RAM/SINKER EDM MACHINING

There are a number of reasons why RAM/Sinker EDM is the best option for certain projects.

3D Capabilities

3D Capabilities

RAM/Sinker EDM is able to create 3D parts and pieces. This allows for the creation of a wider range of prototypes and models.

More Complex

More Complex

RAM/Sinker EDM services are also preferred for products that feature complex geometries. The electrode never touches the materials, so there is no contact damage.

No Pre-Drilling Needed

No Pre-Drilling Needed

This type of machining does not require any pre-drilled holes.

Highly Accurate

Highly Accurate

The parts created using this type of EDM are very accurate and intricate. Instead of cutting, the electrodes are used to slowly erode the metal until it has the desired shape.

Little Heat Damage

Little Heat Damage

There is very little heat generated by RAM/Sinker EDM, leaving the final piece free of heat damage. Melted materials are removed via the dielectric fluid the metal is bathed in.

Hole Damage Repair

Hole Damage Repair

RAM/Sinker EDM has the ability to repair and clean damaged interior/exterior walls without affecting geometric position.

RAM/SINKER EDM MACHINING FAQ

LATEST ARTICLES

Wire EDM is Not Just for Tooling

Jan 30, 2017

You can think of wire EDM as the non-contact, 21st Century version of the fretsaw. A fretsaw is used to cut complex shapes from blocks of wood. The key to its versatility is the blade, which is essentially just an abrasive wire. Being thin and able to cut on all sides, the woodworker can turn it easily to follow…

Continue Reading

Down to the bone: Using EDM in medical device manufacturing

Nov 30, 2016

Say “medical device manufacturing” and most people think of investment cast hip joints and replacement patellas. The reality is, medical devices range from, as the FDA says, “…tongue depressors and bedpans to … pacemakers … and laser surgical devices.” Some of these devices need electro-discharge machining (EDM) for their manufacture while many more need EDM…

Continue Reading

6 Ways EDM Enables Better Part and Tool Design

Nov 14, 2016

Textbooks portray design and manufacture as a linear process, but in reality it’s more iterative. Features, tolerances and materials specified by Engineering Challenge Manufacturing, who respond by requesting design changes. Reasoned discussion usually leads to better choices, but ultimately the product must function the way the designer wants. In such situations the only solution may…

Continue Reading

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LATEST NEWS

Wire EDM is Not Just for Tooling

You can think of wire EDM as the non-contact, 21st Century version of the fretsaw. A fretsaw is used to cut complex shapes from blocks of wood. The key to its versatility is the blade, which is essentially just an abrasive wire. Being thin and able to cut on all sides, the woodworker can turn it easily to follow…

Down to the bone: Using EDM in medical device manufacturing

Say “medical device manufacturing” and most people think of investment cast hip joints and replacement patellas. The reality is, medical devices range from, as the FDA says, “…tongue depressors and bedpans to … pacemakers … and laser surgical devices.” Some of these devices need electro-discharge machining (EDM) for their manufacture while many more need EDM…

6 Ways EDM Enables Better Part and Tool Design

Textbooks portray design and manufacture as a linear process, but in reality it’s more iterative. Features, tolerances and materials specified by Engineering Challenge Manufacturing, who respond by requesting design changes. Reasoned discussion usually leads to better choices, but ultimately the product must function the way the designer wants. In such situations the only solution may…

What the World Would Be Like If Aerospace Precision Machining Didn’t Exist

Space may be the final frontier that scientists, engineers and explorers set their sights on today to discover strange new worlds that might support intelligent life and may one day allow for human colonies to thrive. Yet without the modern technologies and innovations offered by a precision metal machining company, life would be very different…