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Magnetic clamping
This is good for ferrous parts, but it does require a large flat surface area of contact, minimum of about 30cm sq to give a reliable fixing. The clamping is perpendicular to the clamping plate, so large side forces can be a problem, but this can be overcome with some lugs to stop sideways movement.

Thin largely flat parts are ideal for this application. Changeover times for parts are a lot quicker than with conventional clamps as once the magnetic field is off the part can simply be picked up, so this could be a good solution for robot load unload.

One problem is that parts can become magnetized, so if this is important, they will need to be degaussed.

A further advantage for this clamping system is that it effectively increases the mass of the part as it becomes part of the table so it helps with tool chatter and vibration problems.

Obviously it wont work with non magnetic material, but some people will use a ferrous sandwiching technique to clamp the part down or add a ferrous plate. Unless you are only making a few parts, it seems to me that you need to look for another clamping method for non ferrous parts. - no need to complicate things!


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