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Posts Tagged ‘EDM’

Comparing EDM with conventional machining

Manufacturing engineers turn to EDM when milling, turning and grinding aren’t up to the task. It’s as if it’s a binary choice: if machining isn’t possible then chose EDM. The reality is more complex. There’s a significant middle ground where EDM and conventional processes go head-to-head. Yes, the wire EDM cutting rate is lower than…

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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…

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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…

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