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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

Surface finish achievable with EDM

Nov 16, 2017

Surface finish is often called out on part prints. Sometimes it’s because it influences appearance, more often because it affects how surfaces slide over one another. Bearing surfaces and those used for sealing are examples of where finish is important. An EDM surface finish is different to that produced by conventional machining. Cutting processes produce…

Continue Reading

Let EDM be your secret weapon

Oct 26, 2017

Thin walls, tight internal radii, tapers, deep blind pockets in hard materials. Sometimes it seems designers are just trying to find the limits of what manufacturing can do. It’s as if they’re hoping manufacturing will say, “Can’t be done.” The thing is, if manufacturing only has access to conventional machining processes they’re probably right. Some…

Continue Reading

How accurate is wire EDM?

Oct 4, 2017

It’s only natural that designers and toolmakers should ask about the precision of EDM. Knowing the capabilities of the process informs design decisions and influences costs. Whether the parts being made are surgical instruments, extrusion dies, or aerospace components, it’s important to know what tolerances are achievable. Unfortunately, there’s no simple answer. While accuracies of…

Continue Reading

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LATEST NEWS

Surface finish achievable with EDM

Surface finish is often called out on part prints. Sometimes it’s because it influences appearance, more often because it affects how surfaces slide over one another. Bearing surfaces and those used for sealing are examples of where finish is important. An EDM surface finish is different to that produced by conventional machining. Cutting processes produce…

Let EDM be your secret weapon

Thin walls, tight internal radii, tapers, deep blind pockets in hard materials. Sometimes it seems designers are just trying to find the limits of what manufacturing can do. It’s as if they’re hoping manufacturing will say, “Can’t be done.” The thing is, if manufacturing only has access to conventional machining processes they’re probably right. Some…

How accurate is wire EDM?

It’s only natural that designers and toolmakers should ask about the precision of EDM. Knowing the capabilities of the process informs design decisions and influences costs. Whether the parts being made are surgical instruments, extrusion dies, or aerospace components, it’s important to know what tolerances are achievable. Unfortunately, there’s no simple answer. While accuracies of…

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…

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ADDRESS: 444 W. 21st St. Ste. 101
Tempe, AZ 85282
PHONE: 1-480-966-2300
FAX: 1-480-966-2323
EMAIL: info@micropulsewest.com